PostHog vs Statsig
Both are in Web analytics and A/B testing. Here is how their plans, prices and features compare, taken from each vendor's own site.
The main differences
- Fees: PostHog Same free tier each month, then pay for usage; Statsig 5M events included, then $0.05 per 1,000, Custom; event or experiment based contracts.
| PostHog | Statsig | |
|---|---|---|
| Starting price | Free plan | Free plan · from $150/mo |
| Free plan | Yes | Yes |
| Free trial | Not stated by the vendor | Not stated by the vendor |
| Plans | Free ($0); Pay-as-you-go () | Developer ($0); Pro ($150/mo); Enterprise () |
| Fees | Same free tier each month, then pay for usage | 5M events included, then $0.05 per 1,000; Custom; event or experiment based contracts |
| Best for | Not stated | Not stated |
| Key features | Product and web analytics, 1M events a month free; Session replay, 5,000 recordings a month free; Feature flags (1M requests free) and experiments; Surveys and error tracking | A/B tests and experimentation, Bayesian and frequentist; Feature flags and dynamic configs; Product and web analytics; Session replays |
| Checked on | 2026-10-03 | 2026-10-03 |
Prices change; confirm on the vendor's site before you buy. Full details and sources are on each tool's page.
PostHog
- Free tier with no credit card that renews monthly, not a trial
- Usage stops at the free limits, so no surprise bills
- Unlimited team members
Trade-offs
- The free plan has 1 project and 1-year data retention
- Pay-as-you-go has no flat price, so cost depends on usage across products
- Platform packages (SSO, audit logs, custom roles) are sold separately
Statsig
- Free Developer plan: 2M events a month and unlimited seats
- Unlimited flag and config checks on every plan
- Experimentation, flags, analytics and replays in one tool
Trade-offs
- Developer keeps analytics for 1 year and replays at 50,000 a month
- Pro is $150 a month with extra events at $0.05 per 1,000 after 5M
- SSO, HIPAA eligibility and warehouse native need Enterprise