PostHog vs FullStory: Which is Better in 2026?
Choosing between PostHog and FullStory comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
PostHog
Open-source product analytics with event tracking, feature flags, and session recording
Best for you if:
- • You want to try before committing
- • You need product analytics features specifically
- • All-in-one product OS (analytics, flags, replay)
- • Open source and self-hostable
FullStory
Digital experience intelligence
Best for you if:
- • You need web analytics features specifically
- • FullStory is a digital experience platform that records and analyzes user sessions
- • It captures every click and scroll to help teams understand and improve UX
| At a Glance |  PostHog |  FullStory |
|---|---|---|
Starts at | FreeFree tier available | Custom |
Best For | Product Analytics | Web Analytics |
Rating | 4.5/5 | 4.5/5 |
Choose PostHog or FullStory?
Choose PostHog if
Open-source product analytics with event tracking, feature flags, and session recording
- Open source
- All-in-one
- Self-hostable
- You want a free tier before you commit
- Your work is product analytics-shaped, not web analytics-shaped
Choose FullStory if
Digital experience intelligence
- Great session replay
- Frustration signals
- Rich analytics
- Your work is web analytics-shaped, not product analytics-shaped
| Feature | PostHog | FullStory |
|---|---|---|
| Pricing Model | Freemium | Paid |
| User Rating | ★4.5/5 1,036 reviews | ★4.5/5 936 reviews |
| Categories | Product AnalyticsWeb Analytics | Web AnalyticsProduct Analytics |
In-Depth Analysis
PostHog
Open-source product analytics with event tracking, feature flags, and session recording
Strengths
- +Open source
- +All-in-one
- +Self-hostable
Weaknesses
- -Complex setup
- -Can get expensive
Key features
FullStory
Digital experience intelligence
Strengths
- +Great session replay
- +Frustration signals
- +Rich analytics
Weaknesses
- -Expensive
- -Privacy concerns
Key features
Pricing: PostHog vs FullStory
| Plan | PostHog | FullStory |
|---|---|---|
| Tier 1 | Free Free | Free Free |
| Tier 2 | Custom Usage-Based | Contact Sales Business |
| Tier 3 | $750 Scale | Contact Sales Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on PostHog pricing and FullStory pricing.
Who Should Use What?
On a budget?
PostHog has a free tier. FullStory is paid only.
Go with: PostHog
Want the highest-rated option?
PostHog: 4.5/5 (1,036 reviews). FullStory: 4.5/5 (936 reviews).
Go with: PostHog
Value user reviews?
PostHog: 1,036 reviews (4.5/5). FullStory: 936 reviews (4.5/5).
Go with: PostHog
3 Questions to Help You Decide
What's your budget?
PostHog is freemium. FullStory is paid. PostHog lets you start free.
What's your use case?
PostHog is a product analytics tool. FullStory is in web analytics. Pick the category that matches your needs.
How important are ratings?
Both are rated 4.5/5.
Key Takeaways
PostHog
- Larger review base (1,036 reviews)
- Free tier available
- Our pick for this comparison
FullStory
- Better fit for web analytics
The Bottom Line
PostHog is our pick.
Frequently Asked Questions
Is PostHog or FullStory better?
PostHog is rated in our evaluation. PostHog is freemium and FullStory is paid.
What are PostHog and FullStory used for?
PostHog: Open-source product analytics with event tracking, feature flags, and session recording. FullStory: Digital experience intelligence.
What does PostHog cost vs FullStory?
PostHog is freemium (free tier + paid plans). FullStory is a paid tool. Visit their websites for detailed pricing.