head to head · open source
PostHog vs Prisme Analytics
PostHog has 39,835 GitHub stars, 3,394 forks, 5,637 open issues and last shipped yesterday. Prisme Analytics has 131 stars, 4 forks, 1 open issues and last shipped 7 months ago. PostHog leads on adoption by 30,308% (39,835 vs 131 stars). PostHog is written in Python under a custom or non-standard licence; Prisme Analytics is written in TypeScript under AGPL-3.0. PostHog has attracted 9% as many forks as stars, Prisme Analytics 3%. PostHog 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
| PostHog | Prisme Analytics | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 131 |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-02-12 |
| Forks | ⑂ 3.4K | ⑂ 4 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PostHog if
- You weight community size — 40K 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 Prisme Analytics if
- You want the Prisme Analytics 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 Prisme Analytics fits your workflow better
About PostHog
PostHog is an open source platform for building self driving products, combining product analytics, web analytics, session replay, feature flags, experiments, error tracking, logs, surveys, a data warehouse, data pipelines, AI observability, and workflows in a single system, aimed at product, engineering, and growth teams that want to own their product data rather than rent it.
read the full PostHog overview →
About Prisme Analytics
Prisme Analytics is a self hosted, privacy focused web analytics service written in Go that delivers cookie less traffic measurement through Grafana dashboards, and it is built for website and web application owners who want GDPR compliant insight without shipping visitor data to a third party.
read the full Prisme Analytics overview →
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Frequently asked questions
Is PostHog or Prisme Analytics more popular?
PostHog has 39,835 GitHub stars and Prisme Analytics has 131. PostHog has the larger community by that measure.
Are PostHog and Prisme Analytics free?
Both are open source. PostHog has no licence declared in this registry, and Prisme Analytics is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between PostHog and Prisme Analytics?
PostHog is written in Python and Prisme Analytics 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, PostHog or Prisme Analytics?
Choose PostHog if you want the larger community (39,835 stars) or its Custom / other licence terms. Choose Prisme Analytics if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.