Compare · Business apps
Keel vs Invoice Simple
Short answer: Invoice Simple is an invoice, estimate and receipt app with one account synced across iOS, Android and the web. No bank connection. Free to download on the App Store (daily tracking included; optional 5-Folder Pack $49.99 per period, or Keel Lifetime $299.99 paid once — no monthly subscription).
Side by side
How they compare
Last checked: 2026-10-28
| Feature | Invoice Simple | Keel |
|---|---|---|
| Who it is for | Individuals and growing small businesses that make estimates, invoices and receipts on the go. Source · checked 2026-10-28 | Not compared here. |
| Invoice limits by plan | Essentials: up to 3 invoices per month. Plus: up to 10. Premium: unlimited. Source · checked 2026-10-28 | Not compared here. |
| Platforms | iOS, Android and web. Source · checked 2026-10-28 | Keel app on the App Store. |
| Getting paid | Card payments through Invoice Simple Payments; you can also add your banking details to the invoice. Source · checked 2026-10-28 | Not compared here. |
| Keel pricing model (v5.3.2) | See Invoice Simple official pricing | Free to download on the App Store (daily tracking included; optional 5-Folder Pack $49.99 per period, or Keel Lifetime $299.99 paid once — no monthly subscription). |
Last checked: 2026-10-28. Rival details come from the rival’s App Store listing and help pages linked in each cell; they can change. Keel details are from the Keel app.
Choose Invoice Simple if…
- You want to invoice on several devices with one synced account.
- You use Android or want to work in a web browser.
- You want clients to pay by card through the app’s own payment service.
Choose Keel if…
- You don’t want a bank connection.
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Frequently asked questions
Is Keel an Invoice Simple alternative?
If you don’t want a bank connection, it can be. Free to download on the App Store (daily tracking included; optional 5-Folder Pack $49.99 per period, or Keel Lifetime $299.99 paid once — no monthly subscription). If you need Android or web access, Invoice Simple covers those platforms; Keel is an app on the App Store.
Sources
- Invoice Simple · App Store listing (US) · checked 2026-10-28
- Invoice Simple · Access securely from any device · checked 2026-10-28
Invoice Simple is a trademark of its owner; no affiliation. Names are used only to identify the products compared.
Keel editorial team
Ilura Technology OÜWritten and checked against the official sources listed on the page. Editorial standards