head to head · open source
Countly vs Aptabase
Countly has 5,924 GitHub stars, 986 forks, 15 open issues and last shipped yesterday. Aptabase has 1,865 stars, 141 forks, 59 open issues and last shipped 6 days ago. Countly leads on adoption by 218% (5,924 vs 1,865 stars). Countly is written in JavaScript under a custom or non-standard licence; Aptabase is written in C# 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 | ★ 1.9K |
| License | Custom / other | AGPL-3.0 |
| Written in | JavaScript | C# |
| Last push | 2026-11-04 | 2026-10-30 |
| Forks | ⑂ 986 | ⑂ 141 |
| 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 C#
- You evaluated both and Aptabase fits your workflow better
About Countly
🔗 Quick links Countly Website Countly Server installation guide Countly SDKs, download and documentation links Countly Community on Discord User Guides for Countly features 🌟 What is Countly? Countly is a privacy first, AI ready analytics and customer engagement platform built for organizations that require full data ownership and deployment flexibility . Unlike traditional SaaS only analytics tools, Countly can be deployed on premises or in a private cloud , giving you complete control over your data, infrastructure, compliance, and security. Teams use Countly to: Understand user behavior across mobile, web…
read the full Countly overview →
About Aptabase
Aptabase Analytics for Apps. Open Source. Privacy First. Simple. Learn more » About the Project Aptabase is an open source alternative to Firebase/Google Analytics, specifically built for Mobile, Desktop and Web apps. 📱 Extensive list of SDK : No matter what framework or language you use, we have an SDK for you. Swift, React Native, Flutter, Electron, Kotlin, and many others. 😇 Privacy First : We prioritize user privacy and collect minimal usage data without using unique identifiers. Instead, we focus on monitoring sessions, complying fully with GDPR, CCPA, and PECR regulations. 🚀 Simple : Built in and user…
read the full Aptabase overview →
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Frequently asked questions
Is Countly or Aptabase more popular?
Countly has 5,924 GitHub stars and Aptabase has 1,865. 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 C#. 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 (5,924 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.