Observability & Monitoring
PostHog vs Sentry
Side by side
- Pricing model
- PostHogUsage-based
- SentryUsage-based
- Starting price
- PostHogUsage-based after free tier
- Sentry$26/mo
- Free tier
- PostHogYes — Generous free monthly events
- SentryYes — Free developer plan (5k errors/mo)
- Maturity
- PostHogEstablished
- SentryEstablished
- Availability
- PostHogGenerally available
- SentryGenerally available
- Last checked
- PostHogOct 16, 2026
- SentryOct 16, 2026
| Fact | PostHog | Sentry |
|---|---|---|
| Pricing model | Usage-based | Usage-based |
| Starting price | Usage-based after free tier | $26/mo |
| Free tier | Yes — Generous free monthly events | Yes — Free developer plan (5k errors/mo) |
| Maturity | Established | Established |
| Availability | Generally available | Generally available |
| Last checked | Oct 16, 2026 | Oct 16, 2026 |
When each one fits
Choose PostHog when…
Open-source product analytics
Own your data with a full toolkit
Teams wanting analytics + flags + replay
One platform instead of several
PostHog strengths
All-in-one product analytics
Open source / self-hostable
Generous free cloud tier
Choose Sentry when…
Application error tracking
Pinpoint and fix exceptions fast
Frontend + backend performance
Tracing across the stack
Sentry strengths
Best-in-class error tracking
Great developer experience
Open source / self-hostable
Trade-offs
Known weaknesses from each tool’s record. Sourced ones link to where they came from.
PostHog
Self-hosting at scale needs ops
No source on file
Breadth over depth in places
No source on file
Sentry
Less full-stack than Datadog
No source on file
Event volume pricing
No source on file