FAQ
Common questions
Straight answers on both apps, their pricing, and what the reviews show.
Is Invoice Simple legit?
Yes. It is published by Zenvoice Inc. and holds 4.87 stars from 122,610 US App Store ratings as of 2026-07-25, which is among the strongest records of any mobile invoice app. Its negative written reviews are overwhelmingly about commercial terms, mainly price changes and the free tier's monthly invoice cap, rather than about the app failing to do its job.
Is Bookipi legit?
Yes. Bookipi is published by Bookipi Pty Ltd and holds 4.89 stars from 16,493 US App Store ratings as of 2026-07-25. It publishes a full pricing table on its own website, which not every app in this category does. Its most common written criticism is that the product has broadened beyond simple invoicing over time.
Is Invoice Simple free?
Not permanently. Invoice Simple offers a 14-day trial rather than a free plan you can stay on, and every paid tier below the top one meters your invoices: $6.99 a month allows 3, $14.99 allows 10, and unlimited requires $21.99, as of July 2026. Hitting that cap is the single most common thing its negative written reviews describe. Its pricing page blocks crawlers, so those figures are cross-verified through Apple's in-app purchase listing; check inside the App Store before subscribing.
Is Bookipi free?
Bookipi has a free tier that allows up to 3 invoices per month. Paid plans are published on its pricing page: Starter at US$91.20 billed annually or US$9.99 monthly, and Professional at US$468.00 billed annually or US$52.00 monthly, as of 2026-07-25.
Which is better, Invoice Simple or Bookipi?
For pure invoicing, Invoice Simple has the stronger record: far more ratings at a similar average, and a third of its positive reviews specifically praise how simple the invoice flow is. For cost transparency and a broader toolset, Bookipi is the better pick, since it publishes its prices and covers more than invoicing. Neither is a bad choice, and the deciding factor for most people is whether they want a narrow tool or a broad one.
What are the alternatives to Bookipi?
Invoice Simple is the closest Bookipi alternative and the larger app, and the reverse holds too: Bookipi is the most direct Invoice Simple alternative. Beyond those two, Zoho Invoice and Wave are the common free-tier options, both broader and web-first. Billgami is a narrower choice built only for invoices and estimates on iPhone, with a one-time lifetime tier instead of subscription-only pricing, though it is much newer and does not process payments.
Why do both apps look worse here than their star ratings?
Because star averages and written reviews measure different things. Most ratings come from tap-to-rate prompts, where a satisfied user taps five stars and moves on. Writing a review takes effort, and people make that effort when something goes wrong or when they genuinely love a tool. Both apps are legitimately well rated. This page reads the written reviews because they explain what changes the decision, not because the averages are wrong.
Do either of these apps work offline?
Both work partially offline for building a document, and both need a connection to send. If invoicing from job sites with poor signal is central to how you work, test that specific flow during any trial before committing, in whichever app you pick.
How many invoices can you send free on each app?
Bookipi is the only one of the two with a permanent free plan: up to 3 invoices and 3 eSignatures a month, with no card required. Invoice Simple gives you a 14-day trial instead, after which every tier meters you until the top one: 3 invoices a month at $6.99, 10 at $14.99, unlimited at $21.99. So if you send four invoices in a busy month, Bookipi costs nothing and Invoice Simple costs at least $6.99. If you send thirty, the comparison is $9.99 against $21.99.
Which app is better for contractors and trades?
Both are used heavily by trades, and neither is built specifically for construction. Invoice Simple's reviews include a lot of mobile and field operators praising how fast the invoice flow is, which matters when you are billing from a truck. Bookipi's extra tools are more useful if you also want quotes, expenses, and light business admin in one place. If you need job scheduling, dispatch, or crew management, neither app covers it and a field-service tool such as Jobber or Housecall Pro fits better.
Can you switch from one to the other later?
Yes, but expect to rebuild rather than migrate. Neither app offers a one-click import of clients and line items from the other, so switching means re-entering your client list and your saved services, and your old invoice history stays where it was created. That is the practical argument for exporting a copy of your records periodically from whichever app you use, and for deciding early rather than after two years of history has accumulated in the wrong place.
Does a higher App Store rating mean the app is better?
Not on its own. Invoice Simple sits at 4.87 from 122,610 ratings and Bookipi at 4.89 from 16,493, and that 0.02 difference is noise: the sample sizes differ by nearly eight times, and both averages are dominated by tap-to-rate prompts rather than considered reviews. Rating count is the more useful signal here, because it tells you how much real-world use each app has absorbed. What actually separates them is the written detail, which is why this page reads the reviews instead of ranking the averages.
Invoice Simple
Bookipi
Billgami
