PostHog vs FullStory: Head-to-Head Comparison

Quick Verdict

PostHog is the better pick for engineering-led teams wanting analytics, replay and flags in one tool. FullStory is the better pick for teams diagnosing UX friction with session replay.

---

At a Glance

Feature	PostHog	FullStory
Best For	Engineering-led teams wanting analytics, replay and flags in one tool	Teams diagnosing UX friction with session replay
Pricing	Free tier, then usage-based pricing	Paid plans; free trial available
Free to Start	Yes	No
License	Open source	Proprietary
Deployment	Self-hosted or managed cloud	Managed cloud
Link	Visit PostHog	Visit FullStory

---

Detailed Breakdown

PostHog

Open-source product analytics suite

Pros:

• Analytics, session replay, feature flags and experiments
• Generous free usage tier
• Open source

Cons:

• Breadth means some tools are less deep
• Self-hosting is only supported at small scale

---

FullStory

Digital experience analytics with session replay

Pros:

• High-fidelity session replay
• Frustration signals like rage clicks
• Automatic capture

Cons:

• Premium pricing
• Privacy configuration required

---

Key Differences

• Positioning: PostHog — open-source product analytics suite. FullStory — digital experience analytics with session replay.
• Licensing differs: PostHog is open source while FullStory is proprietary.
• Deployment: PostHog — self-hosted or managed cloud. FullStory — managed cloud.
• PostHog can be started for free, while FullStory requires a paid plan. FullStory pricing: paid plans; free trial available.
• Signature strength: PostHog — analytics, session replay, feature flags and experiments. FullStory — high-fidelity session replay.

---

Frequently Asked Questions

Is PostHog better than FullStory?

It depends on your requirements. PostHog is a strong fit for engineering-led teams wanting analytics, replay and flags in one tool, while FullStory suits teams diagnosing UX friction with session replay.

Is PostHog free to use?

Yes, you can start with PostHog for free. Pricing model: Free tier, then usage-based pricing.

Is FullStory free to use?

FullStory does not have a permanent free plan. Pricing model: Paid plans; free trial available.

Can I self-host PostHog or FullStory?

PostHog can be self-hosted. Deployment options: self-hosted or managed cloud. FullStory is offered as a managed service: managed cloud.

What are the main drawbacks of PostHog and FullStory?

PostHog: breadth means some tools are less deep; self-hosting is only supported at small scale. FullStory: premium pricing; privacy configuration required.