6 Fullstory Alternatives in 2026 (Including Free Options)

Last verified: July 2026. Every price below is read off the vendor's own pricing page and stamped with the date we checked it.

Fullstory is one of the deepest session-replay and behavioral-analytics tools on the market — retroactive replay, click heatmaps, funnels, and AI insights that surface problems before you go looking. So why look for an alternative? Because paid pricing is quote-only, there's no native A/B testing, and the platform is built for enterprise teams with enterprise budgets. If you're a smaller team, a dev-led team, or a team that wants to test what it observes, Fullstory can feel like too much tool and too little flexibility. When you hit those walls, here's where to go.

We compared six alternatives. HeatMapX is our own tool, scored on the same axes as everyone else.

Where Fullstory runs out

• Quote-only paid pricing. The free tier is generous (30K sessions/mo), but once you outgrow it, there's no public pricing — you're into a sales conversation. Teams that want predictable costs find this frustrating.
• No native A/B testing. Fullstory shows you what's broken but can't run the experiment that proves a fix. You end up bolting on a separate testing tool.
• Enterprise-focused. The depth is real, but so is the complexity. Smaller teams often find themselves paying for — and navigating — far more platform than they need.
• Limited data export on lower tiers. API openness is 3/5; raw event export is gated behind an Enterprise add-on. If you want your behavior data in a warehouse, you'll hit walls.

The 6 alternatives at a glance

Prices verified against each vendor's official page on July 12, 2026. "API openness" is our 0–5 score for how freely you can export your own data. Fullstory is included at the end as the baseline you're comparing against.

The alternatives, reviewed

HeatMapX — heatmaps plus built-in A/B testing, at a flat price

The biggest gap Fullstory leaves is experimentation. HeatMapX pairs heatmaps with built-in A/B testing (client and server) and AI analysis at flat, published pricing — Free, $12, $29, $99 (verified Jul 2026) — so you can test what Fullstory only shows you. It scores 5/5 on API openness (vs Fullstory's 3) and ships a CLI and MCP server for developers and AI agents. Honest trade-off: unlike Fullstory, HeatMapX doesn't offer session replay or surveys. Best when you need to act on behavior data, not just watch it.

Microsoft Clarity — genuinely free, no traffic cap

If Fullstory's opaque pricing is the problem, Clarity eliminates it entirely. It's genuinely free with no traffic cap (verified Jul 2026): click and scroll heatmaps, session replay, funnels, AI insights, and an MCP server. No native A/B testing or surveys, and no CLI, but for pure observation at zero cost it's hard to beat. API openness 3/5. A simpler tool than Fullstory — but that's the point for teams that don't need the depth.

Hotjar (now part of Contentsquare) — surveys and qualitative research

If the feature you need most is asking users why, Hotjar adds surveys on top of heatmaps and replay. Free plan; Growth from $39/mo billed annually ($49 month-to-month, verified Jul 2026). Heatmaps, replay, surveys, funnels, AI, and MCP. No native A/B testing; API openness 1/5 — lower than Fullstory. Best for qualitative research teams, but note it's now a Contentsquare product.

Mouseflow — friction detection and form analytics

Mouseflow's edge is automated friction scoring — it flags the rage clicks, u-turns, and form abandonment that Fullstory surfaces through manual replay. Free plan (500 sessions/mo), paid from $25/mo (verified Jul 2026). Heatmaps, replay, surveys, funnels, AI, and an MCP server, at 3/5 API openness. No native A/B testing. A more affordable alternative with a narrower, more practical focus on friction.

PostHog — the open-source, developer-first platform

For engineering-led teams, PostHog replaces Fullstory with an open-source platform that also does experiments, feature flags, and product analytics. Generous usage-based free tier (1M events/mo); metered above. Heatmaps, replay, server-side experiments, surveys, AI, a CLI, an MCP server, and 5/5 API openness. More than a Fullstory swap — a different way of working. The complexity is real, but so is the capability.

Contentsquare — the enterprise alternative with public pricing

If you want Fullstory-level depth but with published pricing, Contentsquare is the direct competitor. Free plan ($0, 200K sessions/mo), Growth from $39/mo billed annually ($49 month-to-month, verified Jul 2026), scaling into quote-based enterprise tiers. Heatmaps, replay, surveys, journeys, AI, and MCP. No native A/B testing; API openness 3/5. Hotjar's parent company — so you get the full platform stack, but with visible starting prices.

Which alternative should you pick?

• Add A/B testing Fullstory lacks: HeatMapX.
• Cut the bill to zero: Microsoft Clarity.
• Add surveys and qualitative research: Hotjar (Contentsquare).
• Focus on friction and form analytics: Mouseflow.
• Engineering-led, everything open: PostHog.
• Enterprise depth with public pricing: Contentsquare.

Frequently asked questions

Is Fullstory free?

Fullstory has a free tier with up to 30,000 sessions per month — generous by industry standards. But paid plans are quote-only, so there's no way to know the cost of scaling up without talking to sales.

What does Fullstory not do?

No native A/B testing, and raw data export is gated behind an Enterprise add-on. If you need to test changes or warehouse your behavior data affordably, you'll need a separate tool or a different platform.

Which Fullstory alternative includes A/B testing?

HeatMapX (heatmaps + built-in client and server testing) or PostHog (experiments + feature flags). Fullstory has no native experimentation.

Is there a free alternative to Fullstory?

Microsoft Clarity is entirely free with no traffic cap. Several other tools — HeatMapX, Mouseflow, PostHog, Contentsquare — also offer free tiers with varying limits.

Can I keep using Fullstory alongside another tool?

Yes — some teams keep Fullstory for deep replay and add a testing tool like HeatMapX or PostHog for experimentation. Just mind the extra script weight and potential data overlap of running two analytics tools.

Bottom line

Fullstory is a powerful behavioral-analytics platform, and its free tier is generous. But when quote-only pricing, no A/B testing, or enterprise complexity pushes you to look around, the right alternative depends on what you actually need: HeatMapX to add testing and open data, Clarity to go free, PostHog if you're engineering-led, Contentsquare for comparable depth with visible pricing. Match the tool to the wall you hit — and check the API-openness column before you commit to another platform you can't easily leave.

Related comparisons

• Best Heatmap Tools in 2026: Tested and Compared
• Hotjar vs Fullstory: Which Should You Use?
• 7 Hotjar Alternatives Worth Switching To