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testcritic

FullStory vs Heap

Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.

Entry price

Quote on request

Quote only

Free tier available

Free tier

What drives the bill

The metric that actually scales your invoice.

Quote-based annual contracts priced by session volume. Among the more expensive tools in the category.

Paid tiers are quote-based by session volume.

Free tier

Free plan with limited monthly sessions.

Free plan with a monthly session limit.

Open source

Self-hostable

No-code authoring

Languages

JavaScriptSwiftKotlinCodeless
JavaScriptSwiftKotlin

Platforms

WebiOSAndroid
WebiOSAndroid

Fits teams

Scale-up / mid-marketEnterprise
Scale-up / mid-marketEnterprise

Adoption

Widely used

FullStory · since 2014

Widely used

Contentsquare · since 2013

Strengths

  • Retroactive analysis is a genuine capability difference, not a marketing angle.
  • Excellent search: find the eleven sessions where a specific error occurred in checkout.
  • Strong privacy controls with element-level exclusion rules.
  • 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.

Limitations

  • Expensive, with opaque quote-based pricing.
  • Capturing everything raises data-governance questions that need answering up front.
  • Meaningful learning curve to use the search language well.
  • 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.

Best for

Product and support organisations that need to investigate specific user problems in depth.

Product teams that want analytics without an instrumentation backlog.

All of these integrate with: Segment, Slack, Salesforce, Snowflake.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.