TL;DR
PostHog for open-source all-in-one analytics. Mixpanel for event tracking and funnels. Amplitude for advanced product analytics at scale.
Quick Comparison
| Feature | PostHog | Mixpanel | Amplitude |
|---|---|---|---|
| Price | Free-$0.00036/event | Free-$28/mo | Free-$61/mo |
| Open source | Yes | No | No |
| Event tracking | Yes | Excellent | Excellent |
| Session replay | Yes | No | No |
| A/B testing | Yes | Add-on | Add-on |
1. PostHog
Open-source product analytics with event tracking, session replay, feature flags, A/B testing, and surveys. Self-hostable. Generous free tier (1M events/month). The startup-friendly all-in-one.
2. Mixpanel
Best-in-class event tracking and funnel analysis. Clean UI, fast queries, and cohort analysis. Free up to 20M events/month. The standard for product teams focused on conversion.
3. Amplitude
Enterprise-grade product analytics with behavioral cohorts, retention analysis, and predictive analytics. More powerful but more complex. Free tier available for startups.
How We Chose These Tools
We evaluated analytics depth, pricing at startup scale, ease of implementation, and all-in-one vs specialized capabilities.
Key Takeaways
- Early-stage startup: PostHog (free, all-in-one).
- Funnel-focused: Mixpanel.
- Scale with complex analytics needs: Amplitude.