head to head · open source
PostHog vs countly-sdk-ios
PostHog has 40,600 GitHub stars, 3,579 forks, 5,637 open issues and last shipped yesterday. countly-sdk-ios has 628 stars, 240 forks, 2 open issues and last shipped yesterday. PostHog leads on adoption by 6,365% (40,600 vs 628 stars). PostHog is written in Python under a custom or non-standard licence; countly-sdk-ios is written in Objective-C under MIT. PostHog has attracted 9% as many forks as stars, countly-sdk-ios 38%. PostHog was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (analytics, product-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
| PostHog | countly-sdk-ios | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 628 |
| License | Custom / other | MIT |
| Written in | Python | Objective-C |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.6K | ⑂ 240 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PostHog if
- You weight community size — 41K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick countly-sdk-ios if
- You want the countly-sdk-ios feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Objective-C
- You evaluated both and countly-sdk-ios fits your workflow better
About PostHog
Docs Community Roadmap Why PostHog? Changelog Bug reports PostHog is the open source platform for building self driving products PostHog provides every tool you need to build a successful product, and captures all the context agents need to proactively diagnose problems, uncover opportunities, and ship fixes: Self driving mode: Turn signals in your product data (errors, rage clicks, failed queries, and more) into researched reports and pull requests you review and merge. Product analytics: Autocapture or manually instrument event based analytics to understand user behavior and analyze data with visualization or…
read the full PostHog overview →
About countly-sdk-ios
Countly iOS SDK This repository contains the Countly iOS SDK, which can be integrated into iOS, watchOS, tvOS & macOS applications. The Countly iOS SDK is intended to be used with Countly Lite or Countly Enterprise. What is Countly? Countly is a product analytics solution and innovation enabler that helps teams track product performance and customer journey and behavior across mobile, web, and desktop applications. Ensuring privacy by design, Countly allows you to innovate and enhance your products to provide personalized and customized customer experiences, and meet key business and revenue goals. Track…
read the full countly-sdk-ios overview →
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Frequently asked questions
Is PostHog or countly-sdk-ios more popular?
PostHog has 40,600 GitHub stars and countly-sdk-ios has 628. PostHog has the larger community by that measure.
Are PostHog and countly-sdk-ios free?
Both are open source. PostHog has no licence declared in this registry, and countly-sdk-ios is licensed under MIT. Both are free to self-host.
What is the difference between PostHog and countly-sdk-ios?
PostHog is written in Python and countly-sdk-ios in Objective-C. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, PostHog or countly-sdk-ios?
Choose PostHog if you want the larger community (40,600 stars) or its Custom / other licence terms. Choose countly-sdk-ios if its feature set, stack or MIT licence fits better. Both are self-hostable.