Invoice Lab vs Simple Invoice Maker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Invoice Lab
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Create a PDF invoice or estimate in a minute and see who still owes you. No account, works offline, your data stays on your device and in your own iCloud. FIRST INVOICE IN A MINUTE Type the client's name, add a line or two, and send a clean PDF from Mail, Messages or AirDrop. Taxes, discounts and totals are calculated to the cent. ESTIMATES THAT BECOME INVOICES Send a quote, and when the client accepts, turn it into an invoice with one tap. Lines, prices and taxes carry over. KNOW WHO OWES YOU The dashboard shows what is owed, what is overdue and what came in this month. Record partial payments and the balance due updates everywhere, including the PDF. DOCUMENTS CLIENTS TRUST 8 colour templates in 4 layouts, your logo, address and tax ID, long invoices across several pages, A4 or Letter by region. ALSO • Recurring invoices created on schedule when you open the app • Clients, price book and several businesses • Reports by month and quarter • iPhone and iPad, light and dark mode FREE AND PRO The first 3 invoices are free with PDF and sharing. Invoice Lab Pro unlocks unlimited invoices, recurring invoices, several businesses, all templates, your logo on documents and reports. Choose yearly (with a free trial when offered), monthly, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period; manage them in iOS Settings. Privacy: https://spiroba.github.io/legal/invoice-lab/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Simple Invoice Maker
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Create professional invoices in seconds — and get paid faster. Built for freelancers, contractors, and small businesses who need invoicing that just works, even offline. Trusted by thousands of self-employed professionals worldwide CREATE AND SEND IN SECONDS Build a polished PDF invoice in under a minute. Add your logo, line items, and payment terms — then send directly from the app. TRACK EVERY PAYMENT See who has paid, who is overdue, and your total revenue in one view. No spreadsheets. No chasing down numbers. MANAGE CLIENTS AND SERVICES Store client details and save your services once. Invoice repeat customers in two taps — everything pre-filled. SMART BUSINESS REPORTS Monthly revenue summaries, outstanding totals, and payment trends. Know exactly where your business stands. GST, VAT AND TAX-READY Add tax rates, GST numbers, and VAT — generate compliant invoices in any format your clients or accountants need. WORKS FULLY OFFLINE Create, edit, and send invoices without an internet connection. Everything syncs automatically when you are back online. HOW IT WORKS 1. Add your business details once 2. Create an invoice in under a minute — or duplicate a past one 3. Send as PDF, share via email, or download instantly "I send 10+ invoices a week. Invoiso is the only app that does not get in my way." — App Store review Download free and send your first invoice in minutes.
Screenshots
Verdict
The clearest difference is ads: Invoice Lab at none against Simple Invoice Maker's shown. Simple Invoice Maker's advantage is update cadence (every 2 weeks vs every 5 months) and iOS requirement (15.1 vs 26.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Invoice Lab sells 2 in-app purchases, starting at $4.99 per month and Simple Invoice Maker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Invoice Lab ships an update every 5 months, Simple Invoice Maker every 2 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | Invoice Lab | Simple Invoice Maker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 9 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Boris Spiro | Deep Saha |
In-app purchases
Invoice Lab
- Pro Monthly3 Days trial$4.991 Month
- Pro Yearly7 Days trial$39.991 Year
Simple Invoice Maker
- Invoiso Monthly Pro3 Days trial$3.991 Month
- Invoiso Yearly Pro7 Days trial$34.991 Year
Questions
Is Invoice Lab free?
Is Simple Invoice Maker free?
Do Invoice Lab or Simple Invoice Maker have ads?
Which is updated more often, Invoice Lab or Simple Invoice Maker?
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