PostHog vs FullStory (2026)
PostHog beats FullStory for marketers in 2026. PostHog scores 4.7/10 to FullStory's 4.4/10. PostHog also has a free plan.
PostHog is the stronger choice for marketers — it scores 4.7/10 vs 4.4/10 and wins on 90%+ of companies use it for free. FullStory is worth considering if industry-leading session replay quality is your top priority.
- +90%+ of companies use it for free
- +10+ products in one platform
- +Open source with self-hosting option
- +Generous free tier for early-stage companies
- −Usage-based billing can be unpredictable at scale
- −Complex for non-technical marketers
- −Some features still maturing vs. dedicated tools
PostHog vs FullStory (2026): Which Analytics Tools Tool Is Actually Better?
Budget is often the deciding factor when choosing between PostHog and FullStory. PostHog starts at $0 (usage-based) while FullStory comes in at Custom (contact for Business) — but the real question isn’t just cost, it’s what you get for your money. We spent weeks using both web analytics and data tools tools to build this no-fluff comparison.
Bottom line up front: PostHog is our pick for marketers — read on for why, and where FullStory wins instead.
Quick Verdict
| PostHog | FullStory | |
|---|---|---|
| Our Rating | 4.7/10 | 4.4/10 |
| Free Plan | ✅ Yes | ✅ Yes |
| Starting Price | $0 (usage-based) | Custom (contact for Business) |
| Best For | Product and engineering teams who want… | Enterprise product teams who need deep… |
| Our Pick | ⭐ Winner |
About PostHog
PostHog is a web analytics and data tools tool known for its capabilities. It’s designed for Product and engineering teams who want an all-in-one open-source analytics platform that scales from startup to IPO and has built a strong reputation for 90%+ of companies use it for free.
Key features:
What makes it stand out: 90%+ of companies use it for free. 10+ products in one platform
Where it falls short: Usage-based billing can be unpredictable at scale. Complex for non-technical marketers
About FullStory
FullStory takes a different approach to web analytics and data tools. It’s built around its core strengths and is particularly well-suited for Enterprise product teams who need deep session replay and behavioral data to optimize digital experiences.
Key features:
What makes it stand out: Industry-leading session replay quality. Fullcapture™ captures all interactions automatically
Where it falls short: Enterprise pricing without transparency. Can be expensive for high-traffic sites
Feature-by-Feature Comparison
| Feature | PostHog | FullStory |
|---|
The feature gap between these tools reflects their different design philosophies. PostHog prioritizes breadth, while FullStory goes deeper on specific use cases.
For a full look at PostHog’s capabilities, see our PostHog review. For FullStory, read the FullStory review.
Pricing Comparison
| Plan | PostHog | FullStory |
|---|---|---|
| Free | Free tier available | Free tier available |
| Enterprise | ❌ Not available | Custom/mo (Custom annually) |
Important pricing notes:
- All prices verified as of 2026-03-28. Check official pages before purchasing.
- PostHog has a free plan — see full PostHog pricing breakdown for limits.
- FullStory has a free plan — see FullStory pricing details.
Pros and Cons
PostHog Pros and Cons
Pros:
- ✅ 90%+ of companies use it for free
- ✅ 10+ products in one platform
- ✅ Open source with self-hosting option
- ✅ Generous free tier for early-stage companies
Cons:
- ❌ Usage-based billing can be unpredictable at scale
- ❌ Complex for non-technical marketers
- ❌ Some features still maturing vs. dedicated tools
FullStory Pros and Cons
Pros:
- ✅ Industry-leading session replay quality
- ✅ Fullcapture™ captures all interactions automatically
- ✅ Strong privacy controls (GDPR/CCPA compliant)
- ✅ 30K sessions/mo free to start
Cons:
- ❌ Enterprise pricing without transparency
- ❌ Can be expensive for high-traffic sites
- ❌ Data volume can be overwhelming without clear questions
Which One Should You Choose?
The right answer depends on what you’re actually trying to accomplish:
Best for marketers: PostHog — 90%+ of companies use it for free
Best for developers: FullStory — Industry-leading session replay quality
Best for ecommerce: PostHog — 10+ products in one platform
If you’re still on the fence: PostHog is the safer default. It scores 4.7/10 in our testing versus FullStory’s 4.4/10, and 90%+ of companies use it for free.
Note: This is a non-affiliate link. We don’t earn commission on PostHog — our recommendation is based entirely on merit.
Frequently Asked Questions
Is PostHog better than FullStory? PostHog scores higher in our testing (4.7/10 vs 4.4/10). PostHog is the better choice for marketers due to 90%+ of companies use it for free. However, FullStory is a stronger fit if industry-leading session replay quality.
What’s cheaper, PostHog or FullStory? PostHog starts at $0 (usage-based), while FullStory starts at Custom (contact for Business). PostHog has a free plan. FullStory also has a free tier. See the pricing comparison table above for the full plan breakdown.
Does PostHog have a free plan? Yes. PostHog offers a free tier — Free tier available. This makes it easy to test before committing to a paid plan.
Does FullStory have a free plan? Yes. FullStory offers a free tier — Free tier available.
Related Comparisons & Guides
- PostHog Full Review
- PostHog Pricing 2026
- PostHog Alternatives
- PostHog vs Google Analytics 4
- PostHog vs Mixpanel
- PostHog vs Hotjar
- FullStory Full Review
- FullStory Pricing
AI Stack Picks writes and verifies long-form AI tool reviews for AI Stack Picks.