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testcritic

Microsoft Clarity 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

Free

Free

Free tier available

Free tier

What drives the bill

The metric that actually scales your invoice.

Free with no traffic cap. Microsoft uses aggregated data to improve its products, which is the trade you are making.

Paid tiers are quote-based by session volume.

Free tier

Everything, unlimited, at any traffic level.

Free plan with a monthly session limit.

Open source

Self-hostable

No-code authoring

Languages

JavaScriptCodeless
JavaScriptSwiftKotlin

Platforms

WebiOSAndroid
WebiOSAndroid

Fits teams

Solo / side projectStartupScale-up / mid-marketEnterprise
Scale-up / mid-marketEnterprise

Adoption

Category standard

Microsoft · since 2020

Widely used

Contentsquare · since 2013

Strengths

  • No cost and no sampling at any volume — nothing else in the category comes close on price.
  • Rage-click and dead-click detection surfaces real usability problems immediately.
  • Easy to install and reasonable default masking of sensitive fields.
  • 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

  • Data goes to Microsoft, which is a real consideration for GDPR-sensitive deployments.
  • Filtering and segmentation are shallower than paid tools.
  • Support is community-based and the roadmap is not yours to influence.
  • 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

Almost anyone starting with session replay, and anyone whose paid tool is mainly used for basic replay.

Product teams that want analytics without an instrumentation backlog.

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