FullStory vs Microsoft Clarity
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Editorial assessmentFullStory compared with Microsoft Clarity
Clarity gives away unlimited session capture and heatmaps, which makes it the correct starting point for any budget-constrained site. What it does not offer is retroactive event definition, deep behavioral search, custom attribute segmentation, warehouse export, or the governance apparatus that regulated buyers require. FullStory is what teams move to when replay stops being a curiosity and becomes part of an operational workflow.
Choose FullStory if
Product, engineering, and support teams at software companies and larger ecommerce operations who need to reproduce and diagnose real user problems quickly, and who value retroactive analysis over the lower price of event-based tools.
Choose Microsoft Clarity if
Any small business with a website, because it costs nothing, installs in ten minutes, and answers questions that traffic analytics cannot. Particularly strong for ecommerce stores, marketing sites, and lead generation pages where the question is why visitors are not converting on a specific page.
Side by side
13 attributes| Attribute | FullStory | Microsoft Clarity |
|---|---|---|
| Category | CRO | CRO |
| Starting price | Free tier for low session volumes; paid plans quoted by session volume (free plan available) | $0 (free plan available) |
| Pricing model | Subscription priced by captured sessions and product modules, with a free entry tier and quoted contracts above it. Annual agreements are standard, and add-ons such as mobile app capture or data export are typically priced separately. | Free. There is no paid tier, no enterprise edition, no traffic-based metering, and no upgrade path of any kind. |
| Free plan | Limited monthly sessions with core replay and analytics | Everything. Unlimited traffic, unlimited projects, unlimited sites, unlimited team members, no sampling, all features including Copilot. The only limit is 30 day data retention. |
| Free trial | Free tier plus trial access to paid capabilities | Not applicable; the entire product is free with no trial period and no credit card |
| Best for | Product, engineering, and support teams at software companies and larger ecommerce operations who need to reproduce and diagnose real user problems quickly, and who value retroactive analysis over the lower price of event-based tools. | Any small business with a website, because it costs nothing, installs in ten minutes, and answers questions that traffic analytics cannot. Particularly strong for ecommerce stores, marketing sites, and lead generation pages where the question is why visitors are not converting on a specific page. |
| Setup time | The snippet installs in under an hour, but a responsible deployment includes a privacy configuration pass, masking sensitive fields and gating on consent, which typically takes a few days of coordination. | Ten minutes. Create a project, paste the tag or install the platform app, and data appears within a couple of hours. Mobile SDK installation takes longer but is a normal dependency addition rather than a project. |
| Learning curve | Moderate. Replay is intuitive; building useful segments and search queries takes practice, and the retroactive model rewards teams that learn to ask precise questions. | Very low. The interface is designed for people who do not do analytics for a living, insights are surfaced automatically rather than requiring you to know what to look for, and Copilot answers questions in chat. A shop owner can get value on day one. |
| Platforms | Web (JavaScript), iOS and Android SDKs, React Native, Google Tag Manager | Web via JavaScript tag, Android and iOS native SDKs, Flutter and React Native, Shopify, WordPress, Wix, Squarespace, and Google Tag Manager install apps |
| Compliance | GDPR, CCPA, SOC 2 Type II, ISO 27001, HIPAA support on qualifying plans | GDPR ready, CCPA ready, Consent API required in consent-required jurisdictions, Microsoft enterprise security and privacy programme |
| Founded | 2014 | 2018 |
| Headquarters | Atlanta, Georgia, United States | Redmond, Washington, United States |
| Ownership | Private, venture-backed | Owned and operated by Microsoft Corporation |
Strengths and limitations
FullStory
Strengths
- Autocapture means analysis is retroactive, so an untracked action is still analyzable later.
- Search over behavior is genuinely powerful, turning replay from browsing into querying.
- Automatic frustration signals surface problems nobody reported, functioning as passive quality monitoring.
- Console and network context alongside replay makes it a credible engineering debugging tool, not just a marketing one.
Limitations
- Priced well above behavior analytics tools aimed at marketers, with quoted contracts at any real volume.
- No A/B testing, so validating a fix requires another platform.
- Autocapture requires deliberate privacy configuration before it can be turned on in regulated contexts.
- Session-based metering makes cost a direct function of traffic, which penalizes growth.
Microsoft Clarity
Strengths
- Genuinely free with no traffic limits, no sampling, and no upgrade pressure, at a scale where Microsoft processes over a petabyte of data a month.
- Unlimited projects and unlimited team members, which makes it the obvious default for agencies and for companies with many small sites.
- Automatic machine learning insights (rage clicks, dead clicks, excessive scrolling, quick backs, JavaScript errors) require no configuration and are the fastest route to finding a broken page.
- Installation is genuinely ten minutes through Shopify, WordPress, Wix, Squarespace, or Google Tag Manager, with no developer required.
Limitations
- Thirty day data retention, absolute and unpurchaseable. No historical comparison, no quarter-over-quarter analysis, no year-ago baseline.
- You cannot delete an individual user's data. The only deletion mechanism is deleting the entire project, which is a poor fit for a clean data subject erasure process.
- No product analytics model worth the name: no behavioural cohorts, no proper retention analysis, no experimentation, and only basic funnels.
- No engineering context in recordings. There is no console output, no network inspection, no stack traces, and no application state, so it cannot be used to debug frontend failures.
Pricing compared
FullStory
Subscription priced by captured sessions and product modules, with a free entry tier and quoted contracts above it. Annual agreements are standard, and add-ons such as mobile app capture or data export are typically priced separately.
- Free$0
- BusinessQuoted
- Advanced and EnterpriseQuoted
FullStory is expensive relative to heatmap tools and cheap relative to the engineering hours spent reproducing bugs from bad descriptions. The value case rests almost entirely on retroactive autocapture: teams that regularly need to answer questions they did not anticipate get something no event-based tool can offer at any price. Teams whose questions are all known in advance are paying a premium for optionality they will not use, and should look at cheaper replay products or free options instead.
Microsoft Clarity
Free. There is no paid tier, no enterprise edition, no traffic-based metering, and no upgrade path of any kind.
- Clarity for web$0
- Clarity for mobile apps$0
There is no meaningful value analysis to perform because the price is zero at every volume. At 10,000 monthly users it is free with no sampling. At 100,000 monthly users it is free with no sampling. At ten million it is still free with no sampling, which is not true of a single other product in this category. What you are trading is retention, analytical depth, and engineering detail: 30 days of history, no cohort analysis, no console or network capture, no warehouse export, and no ability to delete a single user's data. For a small business whose behavioural question is about a specific page in the last month, Clarity is unbeatable and the only correct answer is to install it. For anything longitudinal or analytical, it is a supplement rather than a substitute, and the right posture is to run it alongside whatever you actually pay for.
Editorial verdict on each
FullStory
FullStory is the strongest argument in the category for capturing everything and deciding later, and retroactive analysis is a genuine capability rather than a marketing distinction: the questions you did not know to ask are exactly the ones that turn up when something breaks. Its search and frustration signals make replay operational rather than anecdotal, and its privacy controls are mature enough to survive a regulated review. What it asks in return is money and rigor: quoted annual contracts scaled by session volume, and a privacy configuration pass before launch. Product and engineering organizations that use it as a shared source of truth get their money back in reproduction time alone. Marketers who wanted heatmaps should shop elsewhere.
Read the full FullStory profileMicrosoft Clarity
Best ValueEvery small business with a website should install Microsoft Clarity, and the argument takes about one sentence: it is free at any traffic volume, it installs in ten minutes, and it will show you a broken page you did not know about within the first week. Rage clicks and scroll heatmaps answer conversion questions that traffic analytics cannot, and the Copilot layer means a non-analyst can get the answer without knowing what to filter on. It is not a product analytics platform, it is not a debugging tool, and its 30 day retention window means it cannot answer a single historical question. Treat it as the free thing you run alongside whatever you pay for, not as the thing that saves you from paying, and it is the best value in this category by an enormous margin.
Read the full Microsoft Clarity profileFullStory profile last reviewed 2026-08-22; Microsoft Clarity last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.