head to head · open source
firebase-ios-sdk vs tianji
firebase-ios-sdk has 6,661 GitHub stars, 1,789 forks, 444 open issues and last shipped yesterday. tianji has 3,100 stars, 194 forks, 139 open issues and last shipped yesterday. firebase-ios-sdk leads on adoption by 115% (6,661 vs 3,100 stars). firebase-ios-sdk is written in C++ under Apache-2.0; tianji is written in TypeScript under Apache-2.0. firebase-ios-sdk has attracted 27% as many forks as stars, tianji 6%. tianji 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
| firebase-ios-sdk | tianji | |
|---|---|---|
| GitHub stars | ★ 6.7K | ★ 3.1K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | C++ | TypeScript |
| Last push | 2026-09-19 | 2026-09-19 |
| Forks | ⑂ 1.8K | ⑂ 194 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick firebase-ios-sdk if
- You weight community size — 6.7K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick tianji if
- You want the tianji feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and tianji fits your workflow better
About firebase-ios-sdk
Firebase Apple Open Source Development is the open source repository that holds the source code for the Apple platform Firebase libraries, and it is intended for iOS and other Apple platform developers who build apps on the Firebase platform and want to read, build, or vendor that client code directly.
read the full firebase-ios-sdk overview →
About tianji
Tianji is a self hosted TypeScript project that combines website analytics, uptime monitoring, and server status in one application under the Apache 2.0 license. It is positioned as an all in one insight hub rather than only another Google Analytics alternative, and it lives in the web and product analytics ecosystem alongside tools such as Umami, Google Analytics, uptime monitors, and server status collectors.
read the full tianji overview →
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Frequently asked questions
Is firebase-ios-sdk or tianji more popular?
firebase-ios-sdk has 6,661 GitHub stars and tianji has 3,100. firebase-ios-sdk has the larger community by that measure.
Are firebase-ios-sdk and tianji free?
Both are open source. firebase-ios-sdk is licensed under Apache-2.0 and tianji under Apache-2.0. Neither carries a licence fee.
What is the difference between firebase-ios-sdk and tianji?
firebase-ios-sdk is written in C++ and tianji 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, firebase-ios-sdk or tianji?
Choose firebase-ios-sdk if you want the larger community (6,661 stars) or its Apache-2.0 licence terms. Choose tianji if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.