Top 3 Session Replay and Heatmap Tools: Microsoft Clarity vs Hotjar vs FullStory

Clarity earns the free-entry-point slot for a simple reason: there is no paid tier to eventually outgrow. Every feature, click and scroll heatmaps, dead-click and error-click heatmaps, full session recordings, native GA4 integration, funnels, and the Copilot AI assistant that summarizes sessions and answers plain-English questions across many recordings at once, is available at zero cost with no session cap and no credit card required, on a site of any traffic volume.

The tradeoff behind that free model is worth understanding upfront: Microsoft funds Clarity through its own use of aggregated, anonymized behavioral data rather than subscription revenue, and the product has no built-in surveys or feedback widgets, so qualitative feedback collection needs a separate tool if that matters to your workflow.

For practically any site deciding where to start with behavior analytics, especially one watching every recurring SaaS line item, Clarity removes the cost question entirely without a meaningful functional downgrade on the heatmap and recording features most teams actually use day to day.

Hotjar earns the accessible mid-market slot because it is the only one of these three built specifically to combine behavior tracking with direct qualitative feedback, without requiring a second vendor. Its Observe product line covers heatmaps and session recordings, and its separately priced Ask line covers on-site surveys and feedback widgets, and teams commonly run both together on a self-serve subscription that a mid-market team can budget for without a sales call.

That accessibility is also its main limitation relative to the other two: the free tier is tightly capped at roughly 35 sessions a day with about 30 days of retention, and Observe and Ask are billed as two separate product lines, so the real cost climbs quickly once a team needs both at real traffic volume. Hotjar's pricing and packaging have also been in transition since its 2025 acquisition by Contentsquare, worth re-confirming directly before committing to a plan.

For a team that has outgrown Clarity's feature set, specifically because it wants surveys and feedback widgets alongside behavior tracking, but is not yet at the scale or budget where FullStory's enterprise pricing makes sense, Hotjar sits in the accessible middle ground between the two.

FullStory earns the enterprise-depth slot because it is built to answer a harder question than Clarity or Hotjar are aimed at: not just what visitors did, but which specific sessions match a precise behavior pattern, surfaced through a searchable index (OmniSearch) instead of a folder of recordings someone scrolls through one at a time. Its Sentiment Signals automatically flag rage clicks, dead clicks, error clicks, and thrashed cursors across an entire dataset, and its StoryAI feature layers AI-generated session summaries on top so a larger team can triage what actually needs attention.

It does have a genuinely permanent free plan, FullStoryFree, covering roughly 30,000 sessions a month and 10 user seats, more generous by session count than Hotjar's free tier. But the searchable analytics, governance controls, and scale that justify FullStory's positioning sit on its paid Business, Advanced, and Enterprise plans, which are quote-based with no published list pricing, and reported contracts commonly run from roughly $10,000 to well over $100,000 a year depending on session volume.

For a larger product or UX team that has outgrown watching individual recordings and needs to search, segment, and triage behavioral data at real scale, with the governance controls a bigger organization requires, FullStory is built specifically for that job in a way neither Clarity nor Hotjar is.