Billgami
Billdu alternative

11 Billdu alternatives, and what Billdu actually meters

Every invoicing app meters you, including ours. What separates them is what they count and how loudly it tells you. Billdu is the only app here that counts your clients rather than your invoices, which makes it the cheapest option in the category for some businesses and a forced upgrade for others. This guide shows which one you are.

  • 708 recent Billdu reviews read, the largest recent sample we hold for any app
  • What the 11th client actually costs, in money
  • Our own free tier is in the cap table too, disclosed

Last updated · July 28, 2026

A finished invoice in Billdu on iPhone, the app this guide helps you evaluate
Quick takeaways

Which Billdu alternative fits how you invoice?

  • Many clients, few invoices each

    • Zoho Invoice
    • Square Invoices
    • PayPal Invoicing
  • Few clients, many invoices

    • Stay on Billdu
  • Our pick for phone-first invoicing

    • Billgami
  • Free with real headroom

    • Zoho Invoice
  • Most polished phone app

    • Invoice Simple
  • Best for contractors

    • Joist
  • Web-first or self-hosted

    • Invoice Ninja
  • When to stay put

    • Stay on Billdu
How we chose

How did we judge these Billdu alternatives?

The billdu competitors below were measured the same way, ours included. Billgami is listed first because it is ours and we say so, not because it won anything. Where Billdu or another competitor is the better answer, this guide says that instead.

  • What it meters: clients, seats, invoices, or a cut of each payment.
  • What the meter costs when you cross it, in money rather than tiers.
  • What its recent App Store reviewers say, counted.
  • Whether it works from a phone, and whether it works offline.
  • How quickly a first invoice goes out.
  • Whether you can export your records and leave.
The alternatives

11 Billdu alternatives, and who each one is genuinely for

Billgami is first because it is ours and hiding that would be worse than saying it. It is not named best, and neither is anything else: the honest answer depends on your client-to-invoice ratio, which is what the tables above are for. Each card carries the tool's real prices, its App Store rating, and a verbatim review.

ToolBest forFromApp Store rating
BillgamiThe simplest, fastest way to send a professional invoice: pick a client, add services, preview, and send in about a minute.$0To be updated
Invoice SimplePeople who want the most popular, simplest invoice app and send few invoices.$6.99/mo4.87(122,610)
Zoho InvoiceInvoicing-only users who want a free, full-featured web and mobile invoicing tool.$04.86(13,770)
Square InvoicesSolo pros who want free invoicing and also take card or in-person payments.$0/mo4.83(92,439)
PayPal InvoicingSolo pros whose clients already pay by PayPal, Venmo, or card.$0/mo4.19(29,377)
BookipiOccasional invoicers who fit inside 3 free invoices a month, or light users at $9.99.$04.89(16,493)
Invoice2goEstablished mobile invoicers who send few invoices and want a polished, payments-connected app.$7.99/mo (iOS)4.85(55,391)
InvoiceFlyMobile-first invoicers happy to pay a yearly subscription for a slick, fast app.$8.99/week4.76(94,699)
Tofu Invoice MakerPhone-first invoicers who want offline invoicing and may grow into crew scheduling.$29/mo4.83(35,309)
Invoice NinjaFreelancers who want free, customizable, or self-hosted invoicing.$0/mo4.59(173)
JoistContractors who estimate frequently and want trade-specific tools like change orders and financing.$10/mo4.74(13,524)
Stay on BillduSolo pros and tiny teams who want polished invoicing plus expenses on a modest subscription.$7.99/mo4.82(25,672)

App Store ratings from Apple, pulled July 2026 (saved for audit). Prices as of July 2026; confirm current with each vendor.

1. Billgami

App Store rating: to be updated.

Billgami invoice creation screen on iPhone
Create an invoice in a minute
Billgami converting an estimate to an invoice
Turn an estimate into an invoice
Billgami invoice history and payment tracking
Track paid, unpaid, and partial

Clients and services save as you use them, with no cap on how many clients you store. Each client holds a billing address and a separate job address, which matters on service work where the payer and the site differ. An accepted estimate becomes an invoice without re-entering the line items.

Billgami finished invoice preview
Preview and send as a PDF
Billgami home screen
Everything from one home screen
Billgami prebuilt invoice templates
Prebuilt invoice templates

One business profile drives every document: your logo, currency, your own tax label, and your payment instructions. Export all your invoice PDFs, a records CSV and a payments CSV on any plan. Billgami does not process payments and has no expenses tracking or team seats, both of which Billdu does have.

A phone-first invoice app that does one job: send invoices and estimates, track who paid, keep PDF records. Not accounting software, on purpose.

Standout: Documents that carry your own logo, currency, and tax label, built from a saved client book and service catalogue.

Versus Billdu: Counts nothing once you are on a paid tier, where Billdu counts clients on every tier. Our free tier is tighter than Billdu has no free tier at all: 3 invoices in total.

Best for: The simplest, fastest way to send a professional invoice: pick a client, add services, preview, and send in about a minute.

Not for: Anyone who needs books, payroll, inventory, or bank reconciliation.

Key features

  • Your logo, currency, tax label, and payment instructions on every document
  • Searchable client book holding a billing address and a separate job address
  • Reusable service catalogue, each service with its own tax setting
  • Turn an accepted estimate into an invoice
  • Paid, unpaid, and partial payment tracking
  • Export every PDF, record, and payment on any plan
  • Automatic line-item totals
  • Prebuilt invoice templates
  • Works fully offline

Pros

  • One design system across the app, with purpose-built controls for money, dates, and discounts
  • Saved clients and services, so a repeat invoice is selection rather than retyping
  • Separate billing and job addresses, which generic invoice apps do not have
  • Full export of PDFs, records, and payments on any plan
  • Free tier, or a one-time $249.99 lifetime option instead of a subscription

Cons

  • No accounting, payroll, inventory, or bank reconciliation
  • Invoicing only, by design, so it cannot keep your books
  • New app, so no App Store rating history yet

Pricing

Free3 invoices in total (not per month); no time limit$0
Monthly$14.99/mo
Yearly$111.99/yr
LifetimePay once, then own it$249.99 one-time

Free: Free tier capped at 3 invoices in total, not per month, with no time limit; paid tiers from $14.99/mo, plus a $249.99 lifetime option if you want to skip subscriptions.

Platforms: iOS

Migrating from Billdu: Almost none: if invoicing was all you used your old app for, export your client list and start invoicing in an afternoon.

Bottom line: Pick Billgami if all you need is to send invoices and estimates and track who has paid. If you need books, use accounting software instead.

2. Invoice Simple

App Store rating: 4.87 out of 5 (122,610 ratings)

Invoice Simple invoice creation and editing screen
Create invoice
Invoice Simple finished invoice preview
Invoice preview

The biggest name in mobile invoice makers, now EverCommerce-owned: slick and simple, but every tier below $21.99/month meters your invoices.

Invoice Simple is the category's household name, with a 4.87 App Store rating across 122,000+ ratings. The product is genuinely easy: invoices, estimates, and payments in minutes. The business model is metering: $6.99/month buys just 3 invoices a month, 10 on the middle tier, and unlimited only at $21.99/month, with a documented history of price rises.

Standout: The largest brand and ratings base in mobile invoicing (122k+ iOS ratings).

Versus Billdu: Counts invoices per month rather than clients, so it suits many clients invoiced rarely. The cap is loud: 3 a month on the entry tier, and its reviewers say so more than any app we measured.

Best for: People who want the most popular, simplest invoice app and send few invoices.

Not for: Regular invoicers on a budget; the per-month caps make the cheap tiers illusory.

Key features

  • Fast invoice and estimate creation
  • Card and PayPal payments
  • Receipt capture
  • Web and mobile apps

Pros

  • Category-leading ratings at scale
  • Very easy to learn
  • Mature payments integration

Cons

  • 3-invoice monthly cap at $6.99
  • Unlimited costs $21.99/month
  • Documented price-hike history

Integrations

  • Stripe
  • PayPal
  • Receipt capture

Pricing

EssentialsCapped at 3 invoices per MONTH; official pricing page blocks crawlers, price cross-verified via Apple IAP$6.99/mo
PlusCapped at 10 invoices/month$14.99/mo
PremiumUnlimited invoices$21.99/mo

Free: No permanent free tier verified; 14-day Premium trial.

Platforms: Web, iOS, Android

Migrating from Billdu: Export clients and start sending; nothing else to move.

Very simple to use. Saves you time and money.
Invoice Simple user, App Store review (2026), App Store

Bottom line: Pick Invoice Simple if you want the most popular invoice app and your volume fits its meters.

3. Zoho Invoice

App Store rating: 4.86 out of 5 (13,770 ratings)

Zoho Invoice mobile app invoice detail view
Invoice detail
Zoho Invoice mobile app home dashboard
Dashboard

Zoho's completely free invoicing app: invoices, estimates, and a client portal at no cost, as the front door to the wider Zoho ecosystem.

Zoho Invoice went completely free in 2021 and has stayed that way: unlimited-enough invoicing, estimates, time tracking, and a client portal with no paid tiers at all. The honest catch is strategic rather than hidden fees: it exists to bring small businesses into the paid Zoho ecosystem as they grow. It is a genuinely strong free pick if all you need is to send invoices.

Standout: Genuinely 100% free invoicing with no paid tiers at all.

Versus Billdu: Free for the whole product up to 500 invoices a year, with no client limit and no cut of your payments. The strongest answer if Billdu's client cap is what sent you looking.

Best for: Invoicing-only users who want a free, full-featured web and mobile invoicing tool.

Not for: Anyone who needs books, or who wants to stay out of vendor ecosystems.

Key features

  • Free invoices, estimates, and client portal
  • Time tracking built in
  • Part of the Zoho ecosystem
  • Web, iOS, and Android apps

Pros

  • Completely free, no tiers or caps to hit
  • Full-featured for pure invoicing
  • Grows into Zoho Books if you ever need books

Cons

  • Caps: 500 invoices/year, 2 users, 3 projects
  • Exists to funnel you into paid Zoho products
  • More setup than a phone-first invoice app

Integrations

  • Zoho ecosystem (Books, CRM)
  • Stripe and PayPal
  • Zoho Payments

Pricing

Free (only plan)500 invoices/yr, 2 users, 3 projects; no ads, no data selling$0

Free: Entire product free: no ads, no card. Free-plan limits: 500 invoices/year, 2 users, 3 projects, 'Powered by Zoho' branding.

Platforms: Web, iOS, Android

Migrating from Billdu: Export clients and start invoicing; nothing to migrate if you kept no books.

Run my business with this app for past 4 years and never had a problem and works perfect.
Zoho Invoice user, App Store review (2026), App Store

Bottom line: Pick Zoho Invoice if you want the most complete free invoicing tool and do not mind joining the Zoho ecosystem.

4. Square Invoices

App Store rating: 4.83 out of 5 (92,439 ratings)

Square Invoices invoice creation screen
Create invoice
Square Invoices invoice creation, line items step
Create invoice (2)

Free invoicing and estimates that plug straight into Square's card payments, ideal if you also take payments in person.

Square Invoices lets you send unlimited invoices and estimates for free, and get paid by card through Square. Because it shares one account with Square Point of Sale, it is a natural fit for service pros who also sell or take payment in person. It is invoicing and payments, not accounting: there is no general ledger, reconciliation, or tax reporting.

Standout: Free unlimited invoicing tied to Square's payments and point-of-sale.

Versus Billdu: Counts nothing at all: unlimited invoices, unlimited clients, free to send. You pay 3.3% + $0.30 when a client pays by card, which is the trade.

Best for: Solo pros who want free invoicing and also take card or in-person payments.

Not for: Anyone who needs bookkeeping, expenses, or tax-ready reports.

Key features

  • Unlimited invoices and estimates
  • Card payments through Square
  • Recurring invoices and reminders
  • Shared account with Square Point of Sale

Pros

  • Free to send unlimited invoices
  • Fast card payments, online and in person
  • Very high App Store rating at scale

Cons

  • No accounting or bookkeeping
  • Free-plan card rate is 3.3% + $0.30; the lower rate needs a $49/month plan
  • Best value only inside the Square ecosystem

Integrations

  • Square Point of Sale
  • Square Payments
  • Square Payroll
  • Some accounting sync (Xero, QuickBooks) via connectors

Pricing

Square FreeUnlimited invoices and estimates; invoice/online card rate 3.3% + $0.30$0/mo
Square PlusReplaced the old $20 Invoices Plus; card rate drops to 2.9% + $0.30$49/mo per location
Square PremiumLowest processing rates; 24/7 support$149/mo per location

Free: Free forever to create and send invoices; you only pay when a client pays by card.

Platforms: Web, iOS, Android

Migrating from Billdu: Trivial if invoicing was all you did: export your client list and start sending. Nothing to migrate if there were no books.

Square is by far the best. I love everything about it and it truly helps small businesses grow. We have grown!
Square user, App Store review (2026), App Store

Bottom line: Pick Square Invoices if you want free invoicing and already take card or in-person payments.

5. PayPal Invoicing

App Store rating: 4.19 out of 5 (29,377 ratings)

PayPal Business app invoice creation screen
Create invoice
PayPal Business app invoice history
Invoice history

Free invoicing built into the PayPal Business app, where clients can pay with a method they already have.

PayPal Invoicing lets you create and send professional invoices for free from the PayPal Business app, and clients can pay by PayPal, card, or Venmo without an account. It is the path of least resistance for getting paid because so many customers already use PayPal. Like the other pure invoicing tools here, it does invoicing and payments only, with no accounting behind it.

Standout: The invoicing tool your clients already recognize and trust to pay.

Versus Billdu: No caps of any kind and clients already trust it. Its 4.19 rating is the lowest here, and reviewers mostly fault the wider PayPal account experience rather than the invoicing.

Best for: Solo pros whose clients already pay by PayPal, Venmo, or card.

Not for: Anyone who needs bookkeeping, or who wants the lowest processing fees.

Key features

  • Free professional invoices
  • Clients pay by PayPal, card, or Venmo
  • Recurring invoices and reminders
  • Built into the PayPal Business app

Pros

  • Free to create and send invoices
  • Clients already trust and use PayPal
  • Fast setup with an existing PayPal account

Cons

  • No accounting or bookkeeping
  • Wallet/Venmo payments cost 3.49% + $0.49, the way most clients pay
  • The business app rates lower than the invoicing peers here

Integrations

  • PayPal and Venmo
  • Card payments
  • Accounting sync via connectors
  • E-commerce platforms

Pricing

Send invoicesNo fee to create or send$0/mo
Card / Apple Pay payment2.99% + $0.49 per transaction
PayPal / Venmo payment3.49% + $0.49 per transaction
ACH / pay by bank1%, capped at $10

Free: Free to create and send invoices; you only pay when a client pays.

Platforms: Web, iOS, Android

Migrating from Billdu: Nothing to migrate: if invoicing was all you did, start sending from PayPal in minutes.

I've used PayPal for many years and I love it and I shall continue using PayPal.
PayPal user, App Store review (2026), App Store

Bottom line: Pick PayPal Invoicing if your clients already pay by PayPal and you want the least-friction way to get paid.

6. Bookipi

App Store rating: 4.89 out of 5 (16,493 ratings)

Bookipi invoice creation screen
Create invoice
Bookipi finished invoice preview
Invoice preview

A simple mobile invoice maker with a genuinely free 3-invoices-a-month plan, from an independent Australian company.

Bookipi keeps invoicing simple: invoices, estimates, card payments, and reminders from your phone or the web. The free plan is real but tight at 3 invoices a month, which suits very occasional billers; everyone else lands on the $9.99 Starter tier. Its 4.89 App Store rating is among the highest in this set, though its Trustpilot service score is notably lower.

Standout: One of the highest App Store ratings of any invoice app (4.89).

Versus Billdu: A real free plan at 3 invoices a month with no client limit, and unlimited invoicing from $9.99. Cheaper than Billdu Standard if your client count is what pushed you up a tier.

Best for: Occasional invoicers who fit inside 3 free invoices a month, or light users at $9.99.

Not for: Anyone needing books, teams, or heavy monthly volume on the free tier.

Key features

  • Invoices and estimates from your phone
  • Card payments and Tap to Pay
  • Recurring invoices and reminders
  • eSignatures (capped on free)

Pros

  • Real free plan, no card required
  • Top-tier App Store rating (4.89 across 16k ratings)
  • Simple to learn

Cons

  • Free plan caps at 3 invoices a month
  • Trustpilot service score is a middling 3.2
  • No accounting, teams, or time tracking

Integrations

  • Stripe
  • BookiPay (ProPay)
  • Tap to Pay
  • AI add-ons (receptionist, website builder)

Pricing

FreeUp to 3 invoices/month and 3 eSignatures/month$0
StarterUnlimited invoices; $91.20/yr billed annually$9.99/mo
Professional$468/yr billed annually$52/mo

Free: Free plan forever: up to 3 invoices and 3 eSignatures per month, card required for none of it.

Platforms: Web, iOS, Android

Migrating from Billdu: Export clients and start sending; nothing else to move.

One of the best invoice apps to use, simple and easy to use.
Bookipi user, App Store review (2026), App Store

Bottom line: Pick Bookipi if you send a few invoices a month and want a well-rated free mobile app.

7. Invoice2go

App Store rating: 4.85 out of 5 (55,391 ratings)

Invoice2go invoice preview before sending
Invoice preview
Invoice2go invoice management list
Invoice management

One of the oldest mobile invoicing apps, now owned by BILL: polished invoices and payments on a subscription with yearly invoice caps on the cheaper tiers.

Invoice2go pioneered phone-first invoicing and still does it well: invoices, estimates, payments, and light extras like time tracking and appointments. Since the BILL acquisition it is a subscription product whose entry tier caps you at 30 invoices a year, with card fees that only drop as you pay for higher tiers.

Standout: A veteran mobile invoicing brand with integrated payments and banking.

Versus Billdu: Counts invoices annually instead of clients, 30 a year on the entry plan. Its cap is tighter than it sounds because the price is quoted monthly and the cap yearly.

Best for: Established mobile invoicers who send few invoices and want a polished, payments-connected app.

Not for: Anyone sending more than a couple of invoices a month on a budget; the caps push you up-tier fast.

Key features

  • Invoices and estimates from your phone
  • Integrated card, PayPal, and ACH payments
  • Time tracking and appointments
  • Expense capture

Pros

  • Mature, polished mobile invoicing
  • Strong 4.85 App Store rating at scale
  • Free ACH payments on all tiers

Cons

  • Entry tier caps invoices at 30 per year
  • Card fees drop only on pricier tiers
  • No free plan, and trial requires a card

Integrations

  • Invoice2go payments (tiered fees)
  • PayPal
  • Invoice2go Money banking (TransPecos Banks)
  • QuickBooks/Xero export

Pricing

StarterCapped at 30 invoices per YEAR; web price unconfirmed (JS-rendered)$7.99/mo (iOS)
ProfessionalCapped at 100 invoices per year$11.95/mo (iOS)
PremiumUnlimited invoices; tier structure per invoice.2go.com/pricing$44.95/mo (iOS)

Free: No free plan; 30-day free trial (card required, refundable within 30 days).

Platforms: Web, iOS, Android

Migrating from Billdu: Export clients and start sending; nothing to migrate if you kept no books.

I'm not great with tech and this app is very easy to use, I can create an estimate in 5 minutes that looks professional, definitely recommend
Invoice2go user, App Store review (2026), App Store

Bottom line: Pick Invoice2go if you send a handful of invoices, want integrated payments, and prefer a long-established brand.

8. InvoiceFly

App Store rating: 4.76 out of 5 (94,699 ratings)

InvoiceFly finished invoice preview
Invoice preview
InvoiceFly invoice management list
Invoice management

A fast-growing mobile invoice maker with a huge ratings base, sold on a weekly-anchored subscription with no free tier.

InvoiceFly (by Barcelona studio Labhouse) is one of the most-downloaded invoice makers on the App Store, with 94,000+ ratings. It is quick and modern: invoices, estimates, expenses, and payments through your own Stripe or PayPal. The catch is the pricing: no free tier, a card-required trial, and an $8.99-per-week anchor that steers everyone to the $98.99 yearly plan.

Standout: One of the largest ratings bases of any mobile invoice app (94,699 on iOS).

Versus Billdu: No client cap and no invoice cap, but priced by the week at $8.99. Take the annual plan or the cadence costs about $467 a year.

Best for: Mobile-first invoicers happy to pay a yearly subscription for a slick, fast app.

Not for: Anyone who wants a free tier, a lifetime option, or any bookkeeping.

Key features

  • Fast invoice and estimate creation
  • Expense tracker and receipt scanner
  • Payments via your own Stripe or PayPal
  • Client time tracking

Pros

  • Big, fresh ratings base on both stores
  • Payments settle to your own accounts
  • Modern, fast interface

Cons

  • No free tier and a card-required trial
  • Weekly-anchored pricing nudges the yearly plan
  • Single-user only

Integrations

  • Stripe
  • PayPal
  • Receipt scanner
  • Expense tracker

Pricing

WeeklyFull access; auto-renews$8.99/week
YearlyMarketed as 78% off versus weekly$98.99/yr
Monthly (iOS)Apple in-app purchase tier$17.99/mo

Free: No perpetual free tier; free trial only, card required.

Platforms: iOS, Android, Web

Migrating from Billdu: Export clients and start sending; nothing else to move.

Really helps everything look professional for $5 a week it's paid for itself in 70k of quotes
InvoiceFly user, App Store review (2026), App Store

Bottom line: Pick InvoiceFly if you want a slick, popular mobile invoice app and are comfortable with a yearly subscription.

9. Tofu Invoice Maker

App Store rating: 4.83 out of 5 (35,309 ratings)

Tofu invoice management list
Invoice management
Tofu home dashboard
Dashboard

GetPaid's invoice maker (long known as 'Invoice Maker Tofu'): offline-capable mobile invoicing now repositioning into field-service plans, with a 1% platform fee on payments.

Tofu built a large iOS following (4.83 across 35,000 ratings) as a fast phone-first invoice and estimate maker with genuine offline support. It is now repositioning toward field-service management with Solo, Team, and Business web plans from $29 a month. Watch the payments math: Tofu adds its own 1% fee on top of Stripe's processing on every transaction.

Standout: True offline invoicing on a large, proven iOS app.

Versus Billdu: No client cap, works offline like Billdu, but carries a weekly price anchor and takes 1% of payments on top of the subscription.

Best for: Phone-first invoicers who want offline invoicing and may grow into crew scheduling.

Not for: Anyone avoiding platform fees on payments, or needing any bookkeeping.

Key features

  • Invoices and estimates offline from your phone
  • Card, Apple Pay, Google Pay, Tap to Pay via Stripe
  • Price book for saved items
  • Crew and job plans as you grow

Pros

  • Strong iOS rating at scale (4.83, 35k ratings)
  • Real offline mode
  • Grows into field-service features

Cons

  • Adds a 1% platform fee on every payment on top of Stripe
  • Weekly-anchored iOS pricing with rotating promos
  • Marketing claims outrun verifiable reviews (Trustpilot shows 2 reviews)

Integrations

  • Stripe (card, Apple Pay, Google Pay, Tap to Pay)
  • Price book
  • Crew scheduling on FSM plans

Pricing

Solo (web)Single user; jobs, scheduling, invoicing, payments$29/mo
Team (web)Up to 5 workers$79/mo
Plus (iOS)In-app subscription differs from web pricing$9.99/week or $99.99/yr

Free: Free download; 7-day free trial on web plans, no payment upfront. No verified perpetual free tier.

Platforms: iOS, Android, Web

Migrating from Billdu: Export clients and start sending; nothing else to move.

Great reliable app that's easy to use and affordable. looks professional to customers as well. Been using this app for about 3 years now and no complaints.
Tofu user, App Store review (2026), App Store

Bottom line: Pick Tofu if you want offline mobile invoicing and might need crew scheduling later, and accept the 1% payment fee.

10. Invoice Ninja

App Store rating: 4.59 out of 5 (173 ratings)

Invoice Ninja invoice list and history
Invoice history
Invoice Ninja home dashboard
Dashboard

An open-source invoicing platform with a genuinely free hosted tier and a self-host option for people who want control.

Invoice Ninja is open-source-rooted invoicing built for freelancers and small businesses. Its hosted Forever Free plan covers real invoicing for up to 5 clients, and technical users can self-host the whole thing for free and own their data. It is invoicing, quotes, and payments, not accounting, with more customization than most invoicing apps.

Standout: Open-source invoicing you can self-host and own outright.

Versus Billdu: The other client-capped app here: 5 clients on the hosted free tier, tighter than Billdu's 10. Self-host it and the cap disappears, if you are comfortable running a server.

Best for: Freelancers who want free, customizable, or self-hosted invoicing.

Not for: Non-technical users wanting the simplest possible phone-first app, or anyone needing books.

Key features

  • Invoices, quotes, and recurring billing
  • Open-source and self-hostable
  • Many payment-gateway options
  • Deep customization and automation

Pros

  • Genuinely free hosted tier (up to 5 clients)
  • Self-host to own your data outright
  • Highly customizable for invoicing

Cons

  • No accounting or bookkeeping
  • Self-hosting is technical to set up and maintain
  • Smaller, more niche user base

Integrations

  • Stripe, PayPal, and 40+ gateways
  • Zapier
  • Self-hosted API

Pricing

Free (hosted)Up to 5 clients, unlimited invoicing (the old ~20-client limit is gone)$0/mo
Self-hostedFree to self-host; source-available (Elastic License v2)$0
Ninja Pro$140/yr (2 months free); unlimited clients$14/mo
Enterprise1-2 users; scales by user countfrom $18/mo

Free: Hosted Forever Free for up to 5 clients, or self-host the source-available app at no license cost.

Platforms: Web, iOS, Android, Self-hosted

Migrating from Billdu: Import a client list and start invoicing; self-hosting adds setup time but nothing to port if there were no books.

Can't beat the price. Self-hosting on a VPS is insanely cheap.
Invoice Ninja user, App Store review (2026), App Store

Bottom line: Pick Invoice Ninja if you want free, customizable, or self-hosted invoicing and are comfortable with setup.

11. Joist

App Store rating: 4.74 out of 5 (13,524 ratings)

Joist invoice creation screen
Create invoice

Contractor-focused estimating and invoicing (EverCommerce-owned): strong trade features like change orders and financing, on metered subscription tiers.

Joist is built for contractors: estimates that win jobs, invoices, contracts with eSignatures, change orders, and homeowner financing offers. It has no free tier anymore; the $10 Basics plan caps you at 5 documents a month, and the trade features that matter live on Pro and Elite. QuickBooks sync stands in for native books.

Standout: Contractor-specific workflow: estimates, contracts, change orders, financing.

Versus Billdu: The contractor pick: estimates, contracts with eSignatures and change orders. Counts documents at 5 a month rather than clients.

Best for: Contractors who estimate frequently and want trade-specific tools like change orders and financing.

Not for: Anyone wanting a free tier or native bookkeeping.

Key features

  • Estimates built for winning jobs
  • Contracts and eSignatures
  • Change orders and reports on Elite
  • QuickBooks Online sync

Pros

  • Deep contractor workflow
  • Established brand among trades
  • Financing offers can close bigger jobs

Cons

  • 5-document monthly cap on the cheap tier
  • Formerly free features now paywalled
  • Chat-only support with reported payment-issue delays

Integrations

  • QuickBooks Online sync (Pro+)
  • Stripe payments
  • Homeowner financing offers

Pricing

BasicsCapped at 5 documents/month; $100/yr annually$10/mo
ProUnlimited docs, contracts + eSignatures, QuickBooks sync; $170/yr$17/mo
EliteAdds reports, change orders, review automation; $320/yr$32/mo

Free: No free tier; 14-day Elite trial, no card required.

Platforms: Web, iOS, Android

Migrating from Billdu: Export clients and start sending; its accounting-software sync eases the handoff if you keep books.

Joist is a great app. It helps me with my estimates and payments. I recommend Joist to any Contractor. Great tool to have.
Joist user, App Store review (2026), App Store

Bottom line: Pick Joist if you are a contractor who lives on estimates and change orders and will use its trade features.

12. Stay on Billdu

App Store rating: 4.82 out of 5 (25,672 ratings)

Billdu finished invoice preview
Invoice preview
Billdu invoice management list
Invoice management

Sometimes the honest answer is not to switch, and on our own numbers Billdu earns that more than most apps we have measured.

Billdu has the cleanest recent complaint profile of any paid app we have measured: 10.2% of 708 recent written reviews were negative, with zero complaints about caps, zero about billing, and the lowest price-complaint share of any paid app on our roundup. It also does two things Billgami does not: expenses tracking and team seats. If you are under ten clients, Billdu Lite at $59.88 a year is the cheapest paid invoicing in this comparison and nothing on this page beats it on price. The case for leaving is narrow and specific: you are heading past ten clients, or past 50, and the step costs more than the app is worth to you.

Standout: True offline mode with auto-sync, rare in this category.

Versus Billdu: The incumbent, and a well-liked one. Worth keeping if your client count is stable below your tier's limit.

Best for: Solo pros and tiny teams who want polished invoicing plus expenses on a modest subscription.

Not for: Anyone who wants a free tier, or needs books and reconciliation.

Key features

  • Invoices and estimates on phone and web
  • Offline mode with auto-sync
  • Receipt scanner and expense dashboard
  • Team seats on higher tiers

Pros

  • Polished apps with offline support
  • Expense tracking included
  • Small-team support without suite pricing

Cons

  • No free tier, trial only
  • Client caps on lower tiers
  • Card fees drop only on pricier plans

Integrations

  • Stripe
  • Apple Pay and Google Pay
  • Online store module
  • Inventory companion app

Pricing

Lite$4.99/mo billed annually; max 10 clients, 1 user$7.99/mo
Standard$9.99/mo annually; 50 clients, 2 team members$14.99/mo
Premium$19.99/mo annually; unlimited clients, 10 team members, API$27.99/mo

Free: No free plan; 7-day free trial with all features, no card required.

Platforms: Web, iOS, Android

Migrating from Billdu: Export clients and start sending; the 10-client Lite cap matters if you bring a big client list.

Works well, very user friendly. Made the switch because Quick Books was to expensive
Billdu user, App Store review (2026), App Store

Bottom line: Pick Billdu if you want invoicing plus expenses with offline mode and are happy paying a modest subscription.

Head-to-head

Billdu against the alternatives, on the rows that decide it

FeatureBillgamiBillduInvoice SimpleZoho InvoiceSquare Invoices
What it countsInvoices (free tier)Clients and seatsInvoices per monthInvoices per yearNothing
Entry-tier limit3 in total10 clients3/month500/yearNone
Free plan at allYes, 3 invoicesNo, 7-day trialNo, 14-day trialYesYes
Works offlineYesYesNoNoPartial
Expenses trackingNoYesNoNoNo
Team seatsNoYes, by tierNo2 usersYes
Takes a cut of paymentsNoYesNoNoYes
Entry priceFree tier$7.99/mo$6.99/moFreeFree
Lifetime option$249.99NoNoNoNo

Billdu wins two rows here outright: expenses tracking and team seats, neither of which Billgami has. It also has no free plan at all, where ours is 3 invoices in total, which is a real free tier but the tightest allowance in this table. Both things are true.

The meter

What does Billdu count, and why is that unusual?

Billdu counts clients and seats. Almost every other invoicing app counts invoices. That single difference decides whether Billdu is the cheapest app you can buy or a forced upgrade waiting to happen, and it is not something you find out until you cross it.

AppCountsEntry-tier limit
BillduClients and seats10 clients, 1 user on Lite
Invoice NinjaClients5 clients on the hosted free tier
BillgamiInvoices, on the free tier only3 invoices in total, then a paid tier
Invoice SimpleInvoices per month3/month on Essentials, 10 on Plus
BookipiInvoices per month3/month on the free plan
Invoice2goInvoices per year30/year on Starter
Zoho InvoiceInvoices per year500/year, free
JoistDocuments per month5/month, estimates and invoices together
InvoiceFlyNothing, but bills weeklyNo cap; $8.99/week annualises to about $467
TofuNothing, plus 1% of paymentsNo cap; weekly price anchor plus a platform fee
Square InvoicesNothing, takes a payment cutUnlimited; 3.3% + $0.30 per card payment
PayPal InvoicingNothing, takes a payment cutUnlimited; 2.99% to 3.49% + $0.49

Invoices are a flow and clients are a stock. You send fewer invoices in a quiet month, but you never have fewer clients than you had last year. That is why a client cap behaves differently from every other limit on this page: it only ever moves one way.

Each vendor's published pricing as of July 2026. Billgami is ours and its own limit is stated here rather than left out.

The 11th client

What does Billdu cost per client, and what happens at the 11th?

Billdu's Lite plan is $4.99 a month billed annually, which is $59.88 a year for up to 10 clients. That is genuinely cheap. The question is what the next client costs, because the answer is not a small increment.

Billdu planPer yearClientsCost per client
Lite1 user$59.8810$5.99
Standard2 team members; the plan the 11th client forces you onto$119.8850$2.40
Premium10 team members, API$239.88UnlimitedFalls as you grow

Client eleven costs $60 a year, because there is no step between 10 clients and 50. Over three years that single client costs $180. If you are heading past ten clients, price Billdu at Standard from the start rather than at the Lite figure its pricing page leads with. If you will stay under ten, Billdu is the cheapest paid invoicing app in this comparison and nothing here beats it.

Billdu published pricing, annual billing, July 2026. Arithmetic is annual price divided by the clients that plan allows.

What goes wrong

Which caps do people actually complain about?

First, fairness: Billdu holds 4.82 out of 5 across 25,672 App Store ratings, and of the 708 recent written reviews we read, only 10.2% were negative. That is the best ratio of any paid app we have measured. What follows is those negatives specifically, tagged by the same tagger we ran across every app.

AppWhat it capsnComplaints about the cap
Invoice Simple3 invoices per month6331.7%
Invoice2go30 invoices per year1943.6%
BillduNot one of 708 recent reviews complains about the client limit10 clients720.0%

The pattern is not that Billdu's cap is loose. It is the tightest structural limit of the three. One review of the 708 mentions clients at all, and it is a five-star review praising how easy they are to add. The difference is how often a limit announces itself. A monthly cap nags every month, so people write about it. An annual cap bites once a year. A client cap bites once, ever, and the person it bites either upgrades quietly or leaves without writing a review. Complaint share measures how noisy a limit is, not how restrictive. Read this table beside the one above it, never instead of it.

App Store reviews rated one or two stars, updated 2023 or later, one shared tagger across all apps. Derivation: research_runs/2026-07-27-best-invoice-app/.

The real cost

What does Billdu cost over 3 years, against the alternatives?

Monthly prices, so the tiers are comparable. Billdu is cheaper still on annual billing, roughly $4.99, $9.99 and $19.99 a month, which is how the client-cost table above prices it.

PlanPer month1 year3 years
Billgami Free3 invoices in total, then a paid tier$0$0$0
Billgami LifetimeOne payment, no renewalone-time$249.99$249.99
Billgami subscription$14.99$179.88$539.64
Billdu Lite10 clients, 1 user; $59.88/yr billed annually$7.99$95.88$287.64
Billdu Standard50 clients, 2 seats; $119.88/yr annually$14.99$179.88$539.64
Billdu PremiumUnlimited clients, 10 seats, API$27.99$335.88$1,007.64
Invoice Simple PremiumUnlimited invoices$21.99$263.88$791.64
Invoice2go Professional100 invoices a year$11.95$143.40$430.20
Bookipi StarterUnlimited invoices$9.99$119.88$359.64
Zoho InvoiceFree to 500 invoices a year$0$0$0
Square InvoicesFree to send; 3.3% + $0.30 per card payment$0$0$0
PayPal InvoicingFree to send; 2.99% to 3.49% + $0.49$0$0$0

Prices as of July 2026. Billdu discounts heavily for annual billing and its US card fees fall as the plan rises, from 3.4% to 2.9%. Confirm current rates on billdu.com before deciding. Source: Billdu pricing page and each vendor's published rates, July 2026 (https://www.billdu.com/pricing/)

Free options

Does Billdu have a free plan?

No. Billdu has a 7-day free trial with all features and no card required, and after that every plan is paid. If a genuinely free plan is what you are looking for, here is what exists and what each one costs you instead.

ToolWhat's actually freeThe catch
BillduA 7-day trial of everything, no card requiredNo free plan after it; Lite is $59.88 a year and caps you at 10 clients
Zoho InvoiceThe entire product, up to 500 invoices a year, no client limitIt exists to move you into paid Zoho products later
Square InvoicesUnlimited invoices and unlimited clients, free to send3.3% + $0.30 every time a client pays by card
BillgamiThe full app with export, no time limit, no client limit3 invoices in total, not per month: a way to try it, not to run on

Free tiers as described by each vendor as of July 2026. Confirm current limits before relying on them.

Why does a client limit behave differently from an invoice limit?

Because invoices are a flow and clients are a stock. You might send twelve invoices in March and four in April, so an invoice cap loosens and tightens with your workload. Your client list does not work that way. It only ever grows, and it never resets in January. That has two consequences worth understanding before you pick a plan. The first is that a client cap is a countdown rather than a limit: from the day you sign up you are moving toward it at whatever rate you win work, and nothing you do in a quiet month buys headroom back. The second is that you hit it exactly once, and when you do there is no partial answer. Billdu has no step between ten clients and fifty, so the eleventh client costs $60 a year, the same as the fortieth. None of this makes Billdu a bad app. Under ten clients it is the cheapest paid invoicing in this comparison and its users are measurably happier than the users of anything else we measured. It makes it an app you should price at the tier you will be on in a year, not the tier you start on.

  • Count your clients from last year, not your invoices, before comparing Billdu plans.
  • If you are near ten, price Billdu at Standard: the jump is $60 a year, not a few dollars.
  • If your client list is stable and small, nothing here beats Billdu Lite on price.

When Billgami is the wrong answer

Being specific about this is the point of a page that lists its own product first.

  • You use Billdu's expenses tracking or receipt scanning. Billgami has neither.
  • You need team seats. Billdu has them by tier; Billgami is single-user.
  • You want clients paying by card inside the app. Billgami does not process payments; use Square or PayPal.
  • You want a free plan you can actually run on. Ours is 3 invoices in total; Zoho Invoice gives you 500 a year.

If any of these is you, stay on Billdu or take the pick above. Billgami is for one job: getting a professional invoice out from a phone, fast.

If your client list keeps growing, try Billgami

No client limit on any paid tier, your logo and tax label on every document, and accepted estimates convert to invoices without re-entering anything. Export every PDF, record and payment on any plan. The free tier is 3 invoices in total, so it is a way to try it rather than a plan to run on; after that it is $14.99 a month or a one-time $249.99. If Billdu's expenses or team seats are what you use, stay where you are.

Last updated: July 28, 2026 | Written by Phuc Doan

Billgami invoice history with paid, unpaid, and partial status on iPhone

FAQ

Common questions

What is the best Billdu alternative?

It depends on why you are leaving. Apps like Billdu fall into two groups, those that count your clients and those that count your invoices, and the right pick follows which one you can live with. If the client cap is the problem, Zoho Invoice is free with no client limit up to 500 invoices a year, and Square Invoices and PayPal Invoicing have no caps of any kind. If you want a phone-first app with your own branding and a one-time price, Billgami is our pick and it is ours, disclosed. If you are a contractor who needs contracts and change orders, Joist. If you are under ten clients and happy, the honest answer is to stay on Billdu.

Does Billdu have a free plan?

No. Billdu offers a 7-day free trial with all features and no card required, and after that every plan is paid, starting at $7.99 a month or $4.99 a month billed annually. Among the alternatives, Zoho Invoice is free for the whole product up to 500 invoices a year, Square and PayPal are free to send with no caps, and Billgami has a free tier capped at 3 invoices in total.

How many clients does Billdu allow?

Ten on the Lite plan, fifty on Standard, and unlimited on Premium. There is no step between ten and fifty, so the eleventh client moves you from $59.88 a year to $119.88 a year on annual billing. That is $60 a year for one client, or $180 over three years. If you expect to pass ten clients, compare Billdu at the Standard price rather than the Lite price its pricing page leads with.

What happens when the Billdu trial ends?

The trial runs seven days with all features and no card required, so nothing is charged automatically at the end of it. When it finishes you choose a paid plan or stop using the app; there is no free tier to fall back to. That is the main practical difference between Billdu and the apps here that keep a permanently free plan, and it is worth knowing before you put a month of invoices into it.

Is Billdu a good app?

Yes, and our own data says so more clearly than for most apps we have measured. As a billdu invoice app user you are in good company: Billdu holds 4.82 out of 5 across 25,672 App Store ratings, and of 708 recent written reviews only 10.2% were negative, the best ratio of any paid invoicing app we have looked at. It has zero complaints about caps, zero about billing, and the lowest price-complaint share of any paid app on our roundup. This page exists to explain one specific cost, not to argue that Billdu is bad.

Why does nobody complain about Billdu's client limit?

Not one of 708 recent reviews complains about it, which is genuinely surprising given it is the tightest structural limit of the three cap types we compared. Our reading is that complaint volume tracks how often a limit announces itself rather than how restrictive it is. A monthly invoice cap nags every month, which is why Invoice Simple draws cap complaints in 31.7% of its recent negatives. An annual cap bites once a year. A client cap bites once, ever, and the person it bites either upgrades quietly or leaves without writing a review. That is an interpretation, not a measurement; the measurements are the caps themselves and the complaint shares.

Is there a cheaper alternative to Billdu?

Cheaper depends on your shape. If you stay under ten clients, no: Billdu Lite at $59.88 a year is the cheapest paid invoicing app in this comparison. If you are past ten clients, several are cheaper than Billdu Standard's $119.88: Bookipi is $9.99 a month unlimited with no client limit, Zoho Invoice is free, and Billgami's one-time $249.99 lifetime beats any of them over three years or more. Square and PayPal cost nothing to send but take a percentage when clients pay by card.

Which apps have no client limit at all?

Zoho Invoice, Square Invoices, PayPal Invoicing, Bookipi, Invoice Simple, Invoice2go, InvoiceFly, Tofu, Joist and Billgami all count something other than your client list, or count nothing. The only two apps here that cap clients are Billdu at ten on its entry tier and Invoice Ninja at five on its hosted free tier, which is tighter still. Invoice Ninja removes the cap entirely if you self-host it.

Can I move my invoices out of Billdu?

Check the export path before you commit rather than when you are cancelling, whichever app you use. An invoice is a business record you may need years after the job, for a tax question or a dispute, so it should never be the thing that keeps you subscribed. On the Billgami side, export of all invoice PDFs, a records CSV and a payments CSV is available on every plan including the free one. Confirm Billdu's current export options in the app before moving.

Billdu vs Invoice Simple: which should I pick?

They cap opposite things, so the answer follows your shape. Billdu counts clients, ten on its entry tier, and does not limit how many invoices you send. Invoice Simple counts invoices, three a month on its entry tier, and does not limit clients. If you invoice a small stable client list often, Billdu is far better value. If you invoice many one-off customers a few times, Invoice Simple's model suits you better, though its cap draws complaints in 31.7% of its recent negatives against Billdu's 0%.

Does Billdu take a cut of my payments?

Yes, if your clients pay through it. Billdu's US card fees run from 3.4% down to 2.9%, and the rate improves as your subscription tier rises, which means the cheapest plan also carries the highest processing rate. Among the alternatives, Square and PayPal also take a percentage, while Zoho Invoice, Invoice Ninja and Billgami do not process payments at all, so nothing sits between you and your client's money.

Is Billgami better than Billdu?

Not across the board, and we are not going to claim it is. Billdu has expenses tracking and team seats, which Billgami does not, and a better-measured user sentiment than almost any app in this category. Billgami's advantages are narrower and specific: no client limit on any paid tier, a separate job address on every client, export on every plan, and a one-time $249.99 lifetime option instead of a subscription that never ends. Our free tier is tighter than Billdu's trial in one sense, since it is 3 invoices in total, though it never expires. Pick on which of those actually applies to you.

How this guide was built

Prices are Billdu's and each competitor's published rates as of July 2026, taken from their own pricing pages and dated here; confirm current rates before deciding. The client-cost figures are annual plan price divided by the clients that plan allows, using Billdu's annual billing. The 3-year totals are monthly price times 36, locked in code so they cannot drift. The review evidence is 1,378 written Billdu App Store reviews, of which 708 were updated in 2023 or later; only that recent slice is counted, because the corpus reaches back to 2012 and lifetime aggregates would describe a product that no longer exists. Complaint shares are the percent of an app's recent one- and two-star reviews matching each theme, tagged by one shared tagger across every app so the columns are comparable, with the sample size shown on every row and the derivation scripts saved for audit. Billgami is ours, is listed first with that disclosed, and its own free-tier limit appears in the cap tables rather than being left out.

  • Billdu pricing Source
  • Billdu App Store reviews Source
  • Derivation scripts and audit files Source
Phuc Doan

Phuc Doan

Founder of Billgami·Last updated July 28, 2026

MethodologyBillgami competes with Billdu, which is why it is listed first with that disclosed and why its own free-tier limit sits in the cap tables. Prices are published vendor rates as of July 2026. Client costs and 3-year totals are arithmetic on those rates, locked in code. Complaint shares come from 708 recent Billdu reviews out of 1,378 written, tagged by one shared tagger with the scripts saved for audit.

This guide is general information, not accounting, tax, or legal advice. Software prices and features change; confirm current details with each vendor before deciding.