Analytics
PostHog
Product analytics, session replay, feature flags and experimentation in one platform.
Overview
PostHog combines event-based product analytics with session replay, feature management and experimentation. Teams can investigate user behavior and connect quantitative analysis with individual sessions without stitching together separate reporting tools. The cloud service offers recurring free allowances for several products. These are usage quotas, not unlimited access: the event, recording and request limits below apply independently. The profile documents the standard cloud free tier, excluding temporary startup credits and optional paid packages.
Key features
- Product analytics
- Explore tracked events, funnels, retention and user journeys.Documentation
- Session replay
- Review recorded sessions alongside the events that led to them.Documentation
- Feature flags & experiments
- Control releases and test changes using shared feature-flag infrastructure.Documentation
- Error tracking
- Investigate captured exceptions with product and session context.Documentation
- Surveys
- Collect in-product responses alongside behavioral data.Documentation
- AI observability
- Inspect AI application activity using a separate monthly event allowance.Documentation
Free plan details
Permanent free tier. Credit card required: see verification notes.
| Feature | Free allowance | Renewal frequency | Important restrictions |
|---|---|---|---|
| Product analytics | 1,000,000 eventsNot verified | Monthly | Event-based allowance; additional usage requires paid billing.Source |
| Session replay | 5,000 recordingsNot verified | Monthly | Recordings retained for up to 30 days on the free plan.Source |
| Feature flags | 1,000,000 requestsNot verified | Monthly | Experiments share feature-flag billing.Source |
| Error tracking | 100,000 exceptionsNot verified | Monthly | Allowance is measured in captured exceptions.Source |
| Surveys | 1,500 responsesNot verified | Monthly | Allowance is measured in survey responses.Source |
| AI observability | 100,000 eventsNot verified | Monthly | Evaluations share AI-observability billing.Source |
| Team members | UnlimitedNot verified | Ongoing | The free plan does not charge per seat.Source |
| Projects | 1 projectNot verified | Ongoing | More projects require a paid billing setup.Source |
| Analytics retention | 1 yearNot verified | Retention window | This is a storage duration, not a monthly event allowance.Source |
| Session replay retention | Up to 30 daysNot verified | Retention window | Maximum free retention; changes apply only to new recordings.Source |
What happens at the limit?
Without a credit card, usage stops at the free-tier limits. Adding a card enables pay-as-you-go usage: the recurring free allowance remains, and usage above it is charged at the applicable product rate. Billing limits are available for most products; consult the current pricing calculator before enabling paid usage.
Limitations & things to check
Free usage
Free quotas are finite
Each product has its own unit and allowance. Unlimited members does not mean unlimited events, recordings or projects.
Official sourcePaid overage
Overage needs a billing decision
Free usage stops at the quota without a card. With pay-as-you-go enabled, usage above the free allowance is billed.
Official sourcePaid feature
Advanced platform controls cost extra
SSO, audit logs, custom roles and project permissions are offered through paid platform packages. The exact package needed should be checked against current pricing.
Official sourceEnterprise terms
Enterprise code has separate terms
The repository's ee/ directory is governed by the PostHog Enterprise licence, not the MIT licence used for the core.
Official sourceHosting
Self-hosting is a separate operating choice
The documented self-hosted deployment is unsupported, requires your own infrastructure and does not grant access to all paid cloud features.
Official source
Software it can replace
No replacement relationship has been approved yet. This listing does not imply feature parity with another product.
Similar free tools
No reviewed related tools are available in the catalogue yet.
Explore analytics tools →Sources & verification
- Pricing & free allowances
Monthly quotas, seats, projects, analytics retention, card requirement and overage · Checked 2026-10-26
- Replay retention
Free maximum is 30 days, not an unspecified calendar month · Checked 2026-10-26
- Product documentation
Feature availability and product scope · Checked 2026-10-26
- Repository licence
MIT core and Enterprise-directory exception · Checked 2026-10-26
- Enterprise licence
Separate terms for Enterprise code · Checked 2026-10-26
- Self-hosting documentation
Unsupported deployment and cloud-only paid features · Checked 2026-10-26