Head to head
PostHog vs Fullstory
Both platforms are scored with the same methodology and the same category rubric. Nothing on this page is influenced by advertising.
52/100Higher score | 51/100 | |
|---|---|---|
| Category rank | #3 | #5 |
| Confidence | High confidence | High confidence |
| External Reputation | 86 | 83 |
| AI Authority | 6 | 10 |
| Web Authority | 34 | 45 |
| Expert Assessment | 82 | 62 |
| TOP10 User Score | — | — |
| Pricing | $0 — pay-as-you-go keeps the same free allowances then meters overage from $0.0000500/event (1–2M events) · free tier: $0 forever, no credit card: 1M analytics events, 5,000 session recordings, 1M feature-flag requests, 1,500 survey responses, 100K error-tracking exceptions and 10GB logs per month; unlimited team members, 1 project, 1-year data retention, community support only | Not published — Business tier is "Request pricing & demo" only · free tier: FullstoryFree: $0 permanently, 30,000 sessions/month, 12 months replay and analytics retention, up to 10 users, session replay plus basic analytics and debugging. No credit card. Dashboards and StoryAI excluded, community-only support, business email domain required. Separate 14-day trial offers 5,000 sessions, 2 weeks retention, 20 seats. |
| Pricing model | Usage-based, metered per product (no traditional tiers) | Session-based subscription; free plan self-serve, all paid tiers quote-only annual contracts |
| Best for | Engineering-led seed-stage SaaS startups under 1M events per month that want analytics, session replay, feature flags and experiments from one vendor at $0, and have at least one developer comfortable installing an SDK and configuring a reverse proxy. | Seed-stage SaaS teams under 30,000 sessions per month who want session replay and basic product analytics free for a full year of retention across 10 seats, especially where "why did this user get stuck" debugging matters as much as funnel metrics and where privacy masking and consent controls are needed from day one. |
| Avoid if | Avoid PostHog if the daily users of the tool are non-technical founders, PMs or marketers — the learning-curve and confusing-UI themes account for hundreds of negative G2 reviews — or if you need guaranteed responsive support early, SSO and audit logs on a startup budget, or more than one project without paying. | Avoid Fullstory if you expect to cross 30,000 sessions per month within your runway — above the free tier there is no published price, no self-serve credit-card plan, annual contracts only, 100,000-session overage blocks at a premium rate, and capture that pauses at quota. Also avoid it if you are mobile-first (mobile is a paid add-on at every tier), if you need SSO or RBAC on a seed budget (Enterprise-only), if you need feature flags or experimentation in the same tool, or if you want a warehouse-first event stack you control. |
| Markets | — | — |
| Founded | — | — |
| Headquarters | — | — |
A higher TOP SCORE means more of the evidence favours that platform on this methodology — it is not a recommendation, and it does not account for your specific requirements. Advertisers are never declared the winner of a comparison.