head to head · open source
Invoice Ninja vs sossoldi
Invoice Ninja has 10,464 GitHub stars, 2,793 forks, 945 open issues and last shipped yesterday. sossoldi has 1,414 stars, 216 forks, 37 open issues and last shipped 14 days ago. Invoice Ninja leads on adoption by 640% (10,464 vs 1,414 stars). Invoice Ninja is written in PHP under a custom or non-standard licence; sossoldi is written in Dart under MIT. Invoice Ninja has attracted 27% as many forks as stars, sossoldi 15%. Invoice Ninja was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (flutter), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Invoice Ninja | sossoldi | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 1.4K |
| License | Custom / other | MIT |
| Written in | PHP | Dart |
| Last push | 2026-11-02 | 2026-10-20 |
| Forks | ⑂ 2.8K | ⑂ 216 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Invoice Ninja if
- You weight community size — 10K stars and counting
- You want the Custom / other license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick sossoldi if
- You want the sossoldi feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Dart
- You evaluated both and sossoldi fits your workflow better
About Invoice Ninja
Invoice Ninja 5 Invoice Ninja Version 5 is here! We've taken the best parts of version 4 and added the most requested features to create an invoicing application like no other. Check the Invoice Ninja YouTube Channel to get up to speed, or try the Demo now. Choose your setup Hosted: Our hosted version is a Software as a Service (SaaS) solution. You're up and running in under 5 minutes, with no need to worry about hosting or server infrastructure. Self Hosted: For those who prefer to manage their own hosting and server infrastructure. This version gives you full control and flexibility. All Pro and Enterprise…
read the full Invoice Ninja overview →
About sossoldi
Sossoldi Wealth management app Sossoldi (Wealth management app) Sossoldi is a free and open source wealth management / personal finance / Net Worth tracking app, made with Flutter. ❓ What problem we are solving & why Mr. Rip is a blogger that has a spreadsheet in which he tracks his net worth. Sossoldi is a Mobile + Desktop app that aims at replacing that spreadsheet and make it easier for everyone to track their net worth even if they are not as skilled with Google Sheets or Excel. The app is being developed using the Flutter framework which makes it possible to have one codebase for different platforms…
read the full sossoldi overview →
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Frequently asked questions
Is Invoice Ninja or sossoldi more popular?
Invoice Ninja has 10,464 GitHub stars and sossoldi has 1,414. Invoice Ninja has the larger community by that measure.
Are Invoice Ninja and sossoldi free?
Both are open source. Invoice Ninja has no licence declared in this registry, and sossoldi is licensed under MIT. Both are free to self-host.
What is the difference between Invoice Ninja and sossoldi?
Invoice Ninja is written in PHP and sossoldi in Dart. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Invoice Ninja or sossoldi?
Choose Invoice Ninja if you want the larger community (10,464 stars) or its Custom / other licence terms. Choose sossoldi if its feature set, stack or MIT licence fits better. Both are self-hostable.