head to head · open source
Lago vs sossoldi
Lago has 10,568 GitHub stars, 750 forks, 23 open issues and last shipped yesterday. sossoldi has 1,395 stars, 214 forks, 37 open issues and last shipped 6 days ago. Lago leads on adoption by 658% (10,568 vs 1,395 stars). Lago is written in Go under AGPL-3.0; sossoldi is written in Dart under MIT. Lago has attracted 7% as many forks as stars, sossoldi 15%. Lago was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Lago | sossoldi | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 1.4K |
| License | AGPL-3.0 | MIT |
| Written in | Go | Dart |
| Last push | 2026-09-17 | 2026-09-12 |
| Forks | ⑂ 750 | ⑂ 214 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Lago if
- You weight community size — 11K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- 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 Lago
Lago is an open source metering and usage based billing API written in Go under AGPL 3.0. It lives in the Business Software and Finance & Accounting ecosystem and sits between product usage and revenue. It turns events such as AI tokens, compute, API calls, seats, and custom events into billable metrics, pricing, credits, entitlements, invoices, and payments.
About sossoldi
Sossoldi is a free and open source wealth management, personal finance, and net worth tracking app made with Flutter. It lives in the Dart and Flutter ecosystem, and its repository is licensed under MIT. The project targets mobile and desktop use from one codebase, covering Android, iOS, Windows, macOS, and Linux.
read the full sossoldi overview →
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Frequently asked questions
Is Lago or sossoldi more popular?
Lago has 10,568 GitHub stars and sossoldi has 1,395. Lago has the larger community by that measure.
Are Lago and sossoldi free?
Both are open source. Lago is licensed under AGPL-3.0 and sossoldi under MIT. Neither carries a licence fee.
What is the difference between Lago and sossoldi?
Lago is written in Go 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, Lago or sossoldi?
Choose Lago if you want the larger community (10,568 stars) or its AGPL-3.0 licence terms. Choose sossoldi if its feature set, stack or MIT licence fits better. Both are self-hostable.