Can You Take Your Behavioral Data With You? Comparing Export/API Openness Across 19 Heatmap & A/B Testing Products

Summary of this article

• A cross-comparison of 19 major heatmap and A/B testing products through the lens of "can you take your data out" (portability)
• Heatmap products are polarized: free tiers (Clarity, etc.) offer only shallow aggregate data via API, while deep raw data access is enterprise-only
• Only developer-oriented OSS tools (PostHog, Matomo, GrowthBook, Statsig) open up all the way to raw data
• The free Microsoft Clarity's export API is also free, but comes with strict limits: "10 requests/day, most recent 3 days only, aggregate values only"
• Pricing and specifications are based on each company's public documentation as of July 2026 (sources listed at the end of the article)

Tool selection tends to focus on features and pricing, but one thing that's easy to overlook is: can you, whenever you need to, pull the behavioral data accumulated in that tool back into your own hands? In this article, the engineering team behind the heatmap and A/B testing tool "HeatMapX" investigated each company's public documentation as primary sources, and organized the reality of export/API openness. For neutrality, our own product is not included in the comparison tables.

Why look at "how easy it is to take your data with you"

Data portability matters in four main scenarios.

1. Tool migration — Can you carry historical data over when switching to a different service?
2. Automation — Can you run daily aggregation and reporting via API?
3. Long-term analysis — Can you accumulate history in-house beyond the tool's own retention window?
4. Internal BI integration — Can you pipe data into Snowflake or spreadsheets?

This article expresses each tool's openness on a three-tier scale. Fully Open = raw data can be taken out for free or at low cost, Partially Open = an API exists but sits behind a paywall or only returns shallow data, Effectively Closed = no raw export API exists, or it's out of reach.

Case study: how much can you actually pull out of the free Microsoft Clarity via API?

Taking Microsoft Clarity — the poster child of free tools — as an example, let's look concretely at the reality of its export API. The conclusion: "export is also completely free. But free means shallow." The wall here isn't price — it's the thinness of the data you can retrieve and the rate limits.

It's plenty for "casual basic analysis for free," but it's realistic to accept that it isn't suited for "automatically accumulating long-term history."

Comparison table: heatmap / session recording products

"Paywall" here means whether using the equivalent of a data export feature requires an upper-tier/enterprise contract.

Comparison table: A/B testing products

Evaluated by how easily experiment result data can be taken out. OSS/warehouse-native players tend to open up around "data ownership," while commercial players tend to tie access to enterprise contracts.

Data openness score (3 tiers)

Fully Open (4 products) — raw data can be taken out for free or at low cost

• PostHog — Both recording snapshots and raw heatmap data available via API, full SQL access, API available on free tier. OSS (MIT core).
• Matomo — All reports in any format; raw data via API/direct DB access. Full ownership via self-hosting.
• GrowthBook — Results exportable to notebook/CSV, data stays in your own warehouse, self-hosted free.
• Statsig — Full API + warehouse-native + generous free tier. However, following the OpenAI acquisition, Amplitude has taken over the business — worth watching going forward.

Partially Open (11 products) — an API exists, but sits "behind the wall" or only returns shallow data

• Microsoft Clarity — Free but aggregate-only, 10 req/day, 3-day lookback limit. No raw data.
• Contentsquare — Powerful raw data Export API, but premised on an enterprise contract via CSM.
• FullStory — Raw event export is an Enterprise/Advanced add-on.
• Mouseflow — API-first design, but REST API is Premium/Enterprise only.
• Smartlook — API covers Visitors/Events/Funnels/Sessions. Under Cisco, scheduled to sunset in 2027.
• Convert.com — Fully manages experiments via HMAC-signed REST v2. Mid-tier pricing (Growth $299/Pro $420 per month).
• Optimizely — Extensive API, but behind an enterprise pricing wall.
• VWO / AB Tasty — Data API + warehouse export (Enterprise only). MTU-based billing, inquiry required.
• Kameleoon — API + numerous analytics integrations. Pricing on inquiry.
• Omniconvert — API exists but public spec for raw data export is thin. Being restructured as Nexus.

Effectively Closed (4 products) — no raw export API for behavioral data, or it's out of reach

• Hotjar — Server API covers only survey responses and GDPR lookups, and is Scale-tier only at that. Raw recording/heatmap data cannot be exported via API.
• Crazy Egg — Public API only covers goal submission. BI integration for raw data is limited.
• Lucky Orange — No public API confirmed for retrieving data (only a developer API for submission).
• Unbounce — Mainly LP/lead integration; raw export of experiment data is weak.

Category summary

Heatmap products: polarized. Free = shallow, deep = enterprise. Free/low-cost tiers (Clarity, Smartlook, Mouseflow) do have APIs, but Clarity is aggregate-only with low rate limits, and the others also offer limited raw coordinate/recording data. Deep exports (Contentsquare, FullStory) do provide raw data, but are premised on an enterprise contract via CSM. Hotjar, under Contentsquare, has no raw export API for behavioral data, and the API itself is upper-tier only. The only ones open all the way to raw data are the developer-oriented OSS tools PostHog and Matomo — worth understanding that these sit closer to "engineering infrastructure" than to marketer-facing CRO tools.

A/B testing products: OSS/warehouse-native leading on "data ownership." In the experimentation space, GrowthBook and Statsig open up full APIs around the principle of "your data stays in your own warehouse," while commercial players (Optimizely, VWO/AB Tasty, Kameleoon) tend to tie API access to enterprise contracts. In January 2026, VWO and AB Tasty merged under Everstone Capital, furthering mid-to-large consolidation. Convert stands out as a mid-price option with an open API.

Guidance for choosing by purpose

Rather than asking "which is best," it's easier to choose by asking "which fits our priorities."

• If data ownership and full portability are the top priority → OSS/warehouse-native players (PostHog, Matomo, GrowthBook, Statsig). You can keep raw data on your own side, but this tends to assume self-hosting and technical resources.
• If you want to start easily for free → Microsoft Clarity. Zero setup cost, plenty for basic analysis. But accept that its API — aggregate-only, 10 req/day, 3-day lookback — isn't suited for "automatically accumulating long-term history."
• If you need deep raw-data integration at enterprise scale → Contentsquare, FullStory (heatmap category), VWO, Optimizely (experimentation category). These reach raw data and warehouse integration, but assume a contract scale and pricing wall.
• If automation and AI/CLI integration matter to you → Check whether an official MCP/API exists. Clarity and GrowthBook already provide MCP. But also evaluate the granularity of retrievable data (aggregate vs. raw) and the rate limits.
• If you want to avoid migration risk → Before signing a contract, always confirm "what, and in what format, can you take out upon cancellation." Tools where export is upper-tier only, UI-only, or unsupported tend to leave data stranded when switching.

Caveats / items to verify

Pricing, plan names, and API specs are a fast-moving area. Before making an adoption decision, we recommend re-checking the following with each company's latest official information.

• Smartlook — Under Cisco, End-of-Sale/End-of-Life (updates through end of Aug 2026, support ends end of Aug 2027, shutdown planned end of Sep 2027, being folded into Splunk). Not recommended for new adoption.
• Mouseflow — The heatmap API's response format (raw coordinates or images) is not confirmed in official documentation.
• Hotjar — Specific pricing for the Scale tier is hard to confirm on the official page due to the Contentsquare integration, so this article does not state a definitive figure.
• AB Tasty — Integrated API/export specs after the VWO merger have not been announced. The legacy API continues to operate for now.
• Convert.com — Growth $299/month, Pro $420/month (100K MTU, annual payment) are figures listed on the official pricing page. Subject to change by MTU tier.
• VWO, Kameleoon, Optimizely, Contentsquare, FullStory — None publish pricing; all are "inquiry required/enterprise." API availability and pricing tier should be confirmed through sales.
• Statsig — Following the OpenAI acquisition, Amplitude has taken over the business. The free tier, API policy, and data governance may change — check the terms before long-term adoption.

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About this data: The scores and "paywall" determinations reflect our editorial team's interpretation, based on each company's official documentation as primary sources. Figures and plan names are as of July 4, 2026. Specifications and pricing are subject to change without notice, so please check each company's latest official information before making an adoption decision. This focus on "data portability" also reflects why we at HeatMapX value being able to pull the behavioral data collected via a single tracking tag back into your hands at any time, via CLI or MCP.

Main sources: Microsoft Learn (Clarity Data Export API / Data retention / MCP Server); Hotjar Help (API, export); Contentsquare Docs (Export/Metrics API, Connect); Fullstory Developer (Server API Exports); Mouseflow (REST API docs, pricing); Smartlook (API overview, EOL announcement); PostHog Docs (API, Session recordings, Heatmaps, Query); Matomo (Reporting API, On-Premise, Heatmap plugin); GrowthBook (Docs, MCP, Pricing); Statsig (Docs, Pricing), OpenAI/Amplitude (Statsig succession announcement); Convert.com (Pricing, API); VWO Developers, AB Tasty (Data Export, merger announcement); Crazy Egg, Lucky Orange, Kameleoon, Omniconvert, Unbounce — each company's official docs/pricing.