Invoicing apps for iPhone

Intuit QuickBooks for Business

QuickBooks is the heavyweight on this list: a full bookkeeping system that happens to invoice, so the iPhone app carries expenses, receipts, reports and cash flow alongside billing. Intuit now offers a genuinely free tier capped at two invoices a month, which makes it easy to try before committing to a paid plan. It has by far the most iPhone ratings of any app here. The trade-off is price and weight: paid plans start well above the focused invoice apps, and it is more software than a solo contractor sending a few invoices a month actually needs.

Invoice Simple

Invoice Simple is the most-rated dedicated invoice maker on the iPhone, and it earns that with speed: you can build and send an invoice standing in front of the customer without ever opening a web dashboard. Plans are sold by how many invoices you send per month rather than by feature tier, so the cheapest plan is genuinely cheap but caps you at three invoices. There is no permanent free tier, only a trial. Best for tradespeople and side businesses that bill a handful of clients and want nothing to do with bookkeeping.

Invoice Fly

Invoice Fly has quietly become one of the most-rated invoice apps on the iPhone, aimed squarely at freelancers and contractors who want to bill from the job site. It leans on notifications: you are told when a client opens the invoice, which is the feature reviewers mention most. Pricing is the awkward part, sold mainly as a weekly or yearly subscription on the website rather than a straightforward monthly plan, and the free trial asks for a card up front. Invoice Fly charges no processing fee of its own, so taking a card costs whatever Stripe or PayPal charges.

Square Invoices

Square Invoices is the invoicing front end of a payments company, and that shapes the deal: the software is free and Square makes its money on the card fee instead of a subscription. In exchange you get real payments infrastructure, next-day deposits, Tap to Pay on the iPhone, and one account that also handles in-person sales. Paying for Square Plus drops the online card rate and adds payment schedules and custom invoice templates. It suits businesses that already take cards in person and want their invoices in the same place.

Invoice2go

Invoice2go, now owned by BILL, is one of the longest-running invoice apps on the iPhone and still one of the most polished. Its pricing is unusual: plans are capped by how many invoices you send, and the card processing fee falls as you move up the tiers, so the entry plan is cheap but covers only two invoices a month at the highest card rate. It also bundles a business bank account and expense tracking, which pushes it slightly past pure invoicing. Worth a look if you bill a steady low volume and want a 30-day trial to test it properly.

Billdu

Billdu is a mid-market invoicing app that tries to cover a small business's whole paperwork surface: invoices, estimates, receipt scanning, and on higher tiers an online store and booking page. Plans are tiered by how many clients you have rather than how many invoices you send, so the cheap Lite plan works well if you bill the same ten customers over and over. Card payments run through Stripe, so Billdu publishes no processing rate of its own. The free window is short at seven days.

Bookipi

Bookipi is a free-first invoice maker with one of the highest iPhone ratings on this list, and its free tier is real rather than a trial: three invoices a month, forever, with no card required. Paying lifts the invoice cap and unlocks recurring invoices, automatic overdue reminders and deposits. The company has expanded well beyond invoicing into contracts, scheduling and even a website builder, which makes its pricing page harder to read than it should be. A sensible first stop if you want to test an invoice app without handing over a card.

Zoho Invoice

Zoho Invoice is the outlier here: it was a paid product until Zoho made it free in 2021, and it is still free with no paid tier and no invoice cap. That buys a surprisingly complete invoicing app, with estimates, time tracking, expenses, recurring invoices and multi-currency support, plus one of the highest App Store ratings on this list. The catch is the ecosystem: it is a doorway into Zoho's wider suite, and if you later need real bookkeeping you are expected to move up to the paid Zoho Books. Card payments run through third-party gateways, so that fee is theirs.

Joist

Joist is built for one trade in particular: contractors and builders who estimate on site and want that estimate to become an invoice without retyping it. Alongside billing it carries job scheduling, work orders, client records and homeowner financing, which is why it reads as job management rather than a pure invoice app. The entry plan is cheap but caps you at five documents a month, so most working contractors end up on the middle tier. Its card rate is among the highest here, and payments are available only in the US and Canada.

FreshBooks

FreshBooks sits between a pure invoice app and full accounting: the billing side is the best-loved part, with proposals, retainers, automated late-payment reminders and genuinely good time tracking for anyone who bills hourly. Behind it is real double-entry bookkeeping and tax-time reporting. The entry Lite plan is capped at five billable clients, which catches people out, and its list prices are the highest of the subscription-only apps here, though the site almost always shows a heavy introductory discount. Best for freelancers and small agencies who bill for time.

Wave

Wave is the free accounting option: its Starter plan gives you unlimited invoices, estimates and real double-entry bookkeeping without paying anything, which is why it has been a default recommendation for freelancers for years. The Pro plan adds bank feeds, receipt capture and automatic payment reminders, and removes the extra per-transaction charge on card payments. Two caveats worth knowing: Wave serves only the US and Canada, and its iPhone app is the weakest-rated here, described by reviewers as a companion to the web app rather than a full replacement.

Moon Invoice

Moon Invoice is the smallest app here by iPhone ratings, but it is a real product with an unusually deep feature set for the price: dozens of invoice templates, recurring invoices, time tracking, expense logging and multi-currency support, with a separate point-of-sale product alongside. It suits people who want more structure than a basic invoice maker without moving to full accounting software. Its pricing page advertises only the annual-billed rate, so the true monthly cost is hard to pin down, and it publishes no card processing rate of its own.