Amplitude vs PostHog — Which One Wins?
A detailed, side-by-side comparison of Amplitude and PostHog to help you pick the right tool for your workflow.
Quick Verdict
PostHog takes the lead with a 4.5 rating and is best for startups wanting product analytics, session replay, and feature flags in one open-source platform.. Amplitude (4.3) is the better pick if you need enterprise product teams needing sophisticated behavioral analytics and experimentation..
Side-by-Side Comparison
| Criteria | Amplitude | PostHog |
|---|---|---|
| Rating | ★★★★ 4.3(178) | ★★★★ 4.5(167) |
| Pricing Model | freemium | open_source |
| Starter Price | $49/mo (Growth) | Pay-as-you-go above free limits |
| Free Tier | Yes | Yes |
| Platforms | web | web |
| Learning Curve | hard | medium |
| API Available | Yes | Yes |
| Best For | Enterprise product teams needing sophisticated behavioral analytics and experimentation. | Startups wanting product analytics, session replay, and feature flags in one open-source platform. |
| Verdict | situational | recommended |
Feature Checklist
| Feature | Amplitude | PostHog |
|---|---|---|
| Behavioral cohort analysis | — | |
| Funnel and retention analysis | — | |
| Pathfinder (user journey mapping) | — | |
| Built-in A/B testing (Experiment) | — | |
| Customer data platform | — | |
| Predictive analytics | — | |
| Product analytics | — | |
| Session replay | — | |
| Feature flags | — | |
| A/B testing | — | |
| Surveys | — | |
| Self-hostable open source | — |
Amplitude
Pros
- ✓Most sophisticated behavioral analytics available
- ✓Integrated A/B testing connects experiment to analysis
- ✓50M events/month free tier is extremely generous
Cons
- ✕Enterprise pricing is significant
- ✕More complex than Mixpanel for standard analysis
- ✕Requires data engineering investment for full value
PostHog
Pros
- ✓All-in-one replaces 4-5 separate tools
- ✓Open source with free self-hosting
- ✓Cloud free tiers are genuinely generous
Cons
- ✕Individual analytics less powerful than dedicated Mixpanel/Amplitude
- ✕Session replay less polished than FullStory
- ✕Self-hosting requires infrastructure management
The Bottom Line
Both Amplitude and PostHog are solid tools in the Analytics & Data space. PostHog edges ahead with a stronger overall rating (4.5 vs 4.3) and is the better choice for startups wanting product analytics, session replay, and feature flags in one open-source platform.. However, if you prioritize enterprise product teams needing sophisticated behavioral analytics and experimentation., Amplitude is worth serious consideration. We recommend trying the free tier or trial of each before committing.