PostHog vs Heap

Free tier available

Free tier available

Usage-based pricing per product with a substantial free tier; most small teams stay free indefinitely.

Paid tiers are quote-based by session volume.

Large monthly free allowance across every product, plus free self-hosting.

Free plan with a monthly session limit.

Widely used

PostHog · since 2020

Widely used

Contentsquare · since 2013

• Replaces four or five separate subscriptions with one bill and one SDK.
• Free tier is large enough for real production use at startup scale.
• Open source with a credible self-hosting path.

• Retroactive event definition eliminates 'we didn't track that' entirely.
• Very fast time to first insight — no instrumentation project required.
• Warehouse sync for teams that want the raw data.

• Individual modules are less deep than category specialists.
• Self-hosting at scale is a serious infrastructure undertaking.
• The product surface changes fast, which means occasional churn.

• Autocaptured data needs governance or the event list becomes unusable noise.
• Session-based pricing on high-traffic products.
• Acquisition means overlap with Contentsquare's own products.

Startups and scale-ups consolidating analytics, replay and flags into one platform.

Product teams that want analytics without an instrumentation backlog.