Fullstory vs PostHog
We give Fullstory a 3.0 GPA and PostHog a 3.2, out of 4.0. PostHog grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Fullstory
Session replay and behavior analytics for websites and apps
PostHog
Open-source product analytics with replays, flags and surveys
How we grade them
| 3.0GPAFullstoryVery good | 3.2GPAPostHogVery good | |
|---|---|---|
| Value for money | AA site with 10,000 visitors a month fits comfortably in the free plan's 30,000 sessions, so the figure is $0, with 12 months of data and 10 users. Graded against LogRocket and Contentsquare, that's a lot for free. Paid plans are all quoted by sales. | AA site with 10,000 visitors a month fits in the free 1M events and 5,000 recordings, so the figure is $0. There's no base fee after that, just usage from $0.00005 an event. Boost, at $250 a month, is only for SSO, HIPAA and more projects. |
| Free plan and trial | BFullstoryFree needs no card: 30,000 sessions a month, 12 months of data, replays, basic analytics and debugging for up to 10 users. Dashboards and StoryAI aren't included, and there's no free way past 30,000. | BNo card and no time limit: 1M events, 5,000 recordings, 1M flag requests and 1,500 survey responses every month, with unlimited members. Usage stops at the limit, so no surprise bill. You get 1 project, and recordings are kept a month. |
| Features | BReplays with developer tools, heatmaps, rage-click signals, funnels, journeys and retention, all from automatic capture, plus strong privacy controls. That's the whole replay and analytics job. Mobile capture and in-app surveys are add-ons on paid plans. | AAnalytics, web analytics, replays, flags, A/B tests, surveys, error tracking, logs and a data warehouse with pipelines in and out. Graded against Amplitude, Mixpanel and Heap, it covers the whole job, and none of them bundles errors, logs and a warehouse too. |
| Ease of use | CNo rating on record. Capture is automatic once the snippet's in, and replays make sense straight away, but there's a lot of platform behind them: segments, funnels and journeys take some learning. | CNo rating on record. The cloud version is a snippet and a sign-up, but there are a lot of products to learn and events to plan. The free self-hosted version is a Docker deploy PostHog doesn't officially support, which is a developer's job. |
| Platforms and integrations | BWeb only, no desktop or phone app of its own. It connects to Google Analytics, Shopify, Salesforce, Zendesk, Intercom, Jira, Slack and Twilio Segment, with warehouse sync as a paid add-on. | BWeb only, so it can't reach an A. It pulls data in from Stripe, HubSpot, Salesforce and Postgres, sends events out to Braze, Klaviyo and others, and works with Snowflake, BigQuery and Zendesk. |
| Best for | seeing exactly what a user did | a whole product toolkit on one free allowance |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Fullstory and PostHog. How we grade
Where they differ
- PostHog is open source and self-hostable, according to its own site.
- Fullstory also covers dashboards.
- PostHog also covers a/B testing.
At a glance
| Fullstory | PostHog | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | Not published | $0.00005 per analytics event past the free 1M (pay-as-you-go) |
| Free plan | FullstoryFree: 30,000 sessions a month, 12 months of data, session replay, basic analytics and debugging tools for up to 10 users. No credit card needed. | Monthly allowance that resets: 1M analytics events, 5,000 recordings, 1M flag requests, 1,500 survey responses, 100K exceptions. Unlimited members, 1 project, 1-year retention. |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Fullstory, Inc. | PostHog |
| Price read from | fullstory.com | posthog.com |
| Checked | Oct 18, 2026 | Oct 18, 2026 |
Who each one suits
Fullstory
- Support and product teams who need to see exactly what a user did
- Online stores and SaaS companies looking for friction in key flows
- Teams with strict privacy rules on what gets recorded
PostHog
- Startups and developers who want many product tools under one bill
- Teams that want to cap spend with a billing limit per product
- Companies that prefer open-source software they can host themselves
Worth knowing
Fullstory
- No paid prices are published: Business, Advanced and Enterprise are all quoted through sales.
- Mobile app capture and in-app guides and surveys are add-ons on every paid plan.
- The free plan stops at 30,000 sessions a month and 10 users, and leaves out dashboards and StoryAI.
- Syncing data to BigQuery, Redshift or Snowflake needs the Anywhere: Warehouse add-on, sold for Business, Advanced and Enterprise.
PostHog
- Usage is metered per product, so the monthly bill moves with traffic; billing limits can be set for each product to cap it.
- SSO enforcement, a HIPAA BAA and unlimited projects need the $250-a-month Boost package on top of usage; SAML sign-in needs Scale at $750.
- The free plan keeps recordings for 1 month and data for 1 year, allows 1 project, and drops events past its limits.
- Self-hosted PostHog is officially unsupported and has no tagged releases; PostHog recommends always running the latest image.
Key features
Fullstory
- Session replay
- Replays of real visits with developer tools, live session viewing, tabbed browsing and notes, so support and product teams can see what a user saw.
- Heatmaps and frustration signals
- Click, scroll and conversion maps, plus sentiment signals such as rage clicks that point to broken or confusing parts of a page.
- Product analytics
- Funnels, page flows, user segments, retention and journeys built from automatically captured data, with retroactive history.
- Privacy controls
- Sensitive data is excluded by default and masked in the browser, with consent-based recording, user deletion and IP or location restrictions.
- StoryAI and add-ons
- StoryAI adds session summaries and a set of AI agents; mobile capture, in-app guides and surveys, and multi-org management are sold as add-ons.
PostHog
- Product and web analytics
- Funnels, trends, retention, user paths and a web analytics dashboard, built from events. The first 1M events a month are free.
- Session replay
- Recordings of real visits to see where people get stuck, linked to funnels and errors. 5,000 recordings a month are free; recordings are kept 90 days on pay-as-you-go.
- Feature flags and experiments
- Roll features out to chosen users and run A/B tests, billed together by flag requests, with 1M requests free each month.
- Surveys
- In-app surveys with 1,500 free responses a month, and white-labeled surveys on the Boost package.
- Error tracking and logs
- Captures exceptions (100K free a month) and ingests logs (10 GB free), so you can go from a replay to the error behind it.
- Data warehouse and pipelines
- Syncs data in from Stripe, HubSpot, Salesforce, Postgres and others, and sends events out to tools such as Braze and Klaviyo.
Plans
Fullstory
FullstoryFree$0
30,000 sessions a month, 12 months of data and up to 10 users. Dashboards and StoryAI need a paid plan.
BusinessCustom
Sold through sales: for companies that want product analytics alongside session replay, heatmaps and dashboards.
AdvancedCustom
Sold through sales: for larger organizations tracking trends and improving funnels at scale. Marked as the popular plan.
EnterpriseCustom
Sold through sales: for data science and analytics teams that use behavioral data in predictive models or AI projects.
PostHog
Free$0
Full free allowance on every product, unlimited team members, 1 project, community support. Usage stops at the limits, so no surprise bill.
Pay-as-you-go$0
plus usage above the monthly free allowance
No base fee. Analytics from $0.00005 an event and replays from $0.005 a recording, cheaper at volume. 6 projects, 7-year data, email support.
Boost$250
per month, plus usage
Platform package: unlimited projects, SSO enforcement, 2FA enforcement, white labeling, HIPAA BAA and 12 months of replay retention.
Scale$750
per month, plus usage
Everything in Boost plus SAML and OIDC sign-in, approval workflows, real-time alerts and priority support with an 8-hour target.
EnterpriseCustom
Sold through sales: role-based access, a dedicated account manager, training, and up to 5 years of replay retention.
Self-hosted (hobby deploy)$0
MIT-licensed Docker Compose deployment you host yourself. Officially unsupported, with no paid support plan.
Ways to pay less
Fullstory
No public discounts listed.
PostHog
- Startups
$50,000 in credits for early-stage startups
Companies under 2 years old that have raised less than $5M get $50,000 of PostHog credit for 12 months, plus partner perks. A company email domain is required.
- Nonprofit
Discount for nonprofits
PostHog says it gives nonprofits a discount in most cases: create an account, then contact sales with details of the organization.
