head to head · open source
Countly vs Aptabase
Countly has 5,905 GitHub stars, 981 forks, 15 open issues and last shipped 2 days ago. Aptabase has 1,815 stars, 138 forks, 59 open issues and last shipped 7 days ago. Countly leads on adoption by 225% (5,905 vs 1,815 stars). Countly is written in JavaScript under a custom or non-standard licence; Aptabase is written in TypeScript under AGPL-3.0. Countly has attracted 17% as many forks as stars, Aptabase 8%. Countly was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (analytics), 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
| Countly | Aptabase | |
|---|---|---|
| GitHub stars | ★ 5.9K | ★ 1.8K |
| License | Custom / other | AGPL-3.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-18 | 2026-09-13 |
| Forks | ⑂ 981 | ⑂ 138 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Countly if
- You weight community size — 5.9K stars and counting
- You want the Custom / other license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Aptabase if
- You want the Aptabase feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Aptabase fits your workflow better
About Countly
Countly is a privacy first, AI ready analytics and customer engagement platform that organizations deploy themselves rather than consume only as a hosted service. The server side component lives in this repository and is written in JavaScript, sitting in the JavaScript and Node.js ecosystem alongside the client SDKs that ship separately for iOS, Android, React Native, Flutter, NodeJS, Unity, Java and JavaScript. The platform is built around the idea that customer data should stay under the operator's control: Countly runs on premises or in a private cloud, and the project describes full data ownership, deployment…
read the full Countly overview →
About Aptabase
Aptabase is an open source, privacy first analytics project for mobile, desktop, and web apps. It is written in TypeScript and released under the AGPL 3.0 license. The project describes itself as an alternative to Firebase and Google Analytics for teams that need usage insights without detailed personal identifiers.
read the full Aptabase overview →
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Frequently asked questions
Is Countly or Aptabase more popular?
Countly has 5,905 GitHub stars and Aptabase has 1,815. Countly has the larger community by that measure.
Are Countly and Aptabase free?
Both are open source. Countly has no licence declared in this registry, and Aptabase is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Countly and Aptabase?
Countly is written in JavaScript and Aptabase in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Countly or Aptabase?
Choose Countly if you want the larger community (5,905 stars) or its Custom / other licence terms. Choose Aptabase if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.