PostHog vs Sentry — Which One Wins?
A detailed, side-by-side comparison of PostHog and Sentry 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.. Sentry (4.2) is the better pick if you need dev teams needing error tracking.
Side-by-Side Comparison
| Criteria | PostHog | Sentry |
|---|---|---|
| Rating | ★★★★ 4.5(167) | ★★★★ 4.2(19) |
| Pricing Model | open_source | freemium |
| Starter Price | Pay-as-you-go above free limits | $26/mo |
| Free Tier | Yes | No |
| Platforms | web | Web |
| Learning Curve | medium | moderate |
| API Available | Yes | Yes |
| Best For | Startups wanting product analytics, session replay, and feature flags in one open-source platform. | Dev teams needing error tracking |
| Verdict | recommended | recommended |
Feature Checklist
| Feature | PostHog | Sentry |
|---|---|---|
| Product analytics | — | |
| Session replay | ||
| Feature flags | — | |
| A/B testing | — | |
| Surveys | — | |
| Self-hostable open source | — | |
| Error tracking | — | |
| Performance | — | |
| Releases | — | |
| Workflows | — | |
| Multi-platform | — |
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
Sentry
Pros
- ✓Industry leading
- ✓Session replay
- ✓Good free tier
- ✓Multi-platform
Cons
- ✕Noisy without tuning
- ✕APM less deep
- ✕Event pricing
The Bottom Line
Both PostHog and Sentry are solid tools in the Analytics & Data space. PostHog edges ahead with a stronger overall rating (4.5 vs 4.2) and is the better choice for startups wanting product analytics, session replay, and feature flags in one open-source platform.. However, if you prioritize dev teams needing error tracking, Sentry is worth serious consideration. We recommend trying the free tier or trial of each before committing.