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Session replay and heatmaps · October 2026 Edition

Microsoft Clarity vs Fullstory

Zero of fourteen models named Microsoft Clarity first on the direct prompt; two named Fullstory. Both were named by all fourteen models and Microsoft Clarity carries 59 labels and Fullstory 53, so the shares are not directly comparable.

Microsoft Clarity

endorsed leader

By Microsoft, Vancouver, Canada, founded 1975. Named in five categories this edition.

Fullstory

criticized challenger

Named in four categories this edition.

First-choice share33%9%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate20%42%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#3A position in a field of 10; printed, not drawn.
Labels5953A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Microsoft Clarity reading right to left. Rank and label count are printed, not drawn.Hotjar was named alongside these two in ten of the fourteen direct answers. Microsoft Clarity vs Hotjar · Microsoft Clarity vs PostHog · Microsoft Clarity vs Mouseflow

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the session replay and heatmaps page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Microsoft ClarityFirst choices, of fourteen modelsFullstory
Direct021 against Microsoft Clarity · 7 against Fullstory
Paraphrase401 against Fullstory
Comparative721 against Fullstory
Budget-constrained1402 against Fullstory
Scale-constrained132 against Microsoft Clarity
Negative219 against Microsoft Clarity · 11 against Fullstory
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, Microsoft Clarity and Fullstory were named in the same answer 112 times, of the 229 answers naming Microsoft Clarity and the 238 naming Fullstory. In those answers Fullstory took the first choice seventeen times and Microsoft Clarity forty-one.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Microsoft Clarity and Fullstory stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
Microsoft Clarity Fullstory first choice named as an alternative argued againstblank: not namedEach cell is one answer, Microsoft Clarity on the left and Fullstory on the right.

The direct prompt

The plain question, one answer per model, grouped by where Microsoft Clarity and Fullstory stood in it.

Fullstory first, Microsoft Clarity an alternative

2 of 14 modelsMicrosoft Clarity was named in the answer but not as the choice, or not at all.
Perplexity SonarFullstory alternatives: Hotjar, LogRocket
Muse Glimmer 30BFullstory alternatives: Contentsquare, Heap, Hotjar, Microsoft Clarity, PostHog, VWO

Neither was the first choice, one was named

7 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Grok 4.1 FastHotjar alternatives: LogRocket, Microsoft Clarity, Mouseflow
Mistral SmallHotjar, Lucky Orange alternatives: Fullstory, PostHog, UXCam
DeepSeek V4 FlashPostHog alternatives: Hotjar, LogRocket, Microsoft Clarity, Mouseflow
Llama 4 MaverickSmartlook alternatives: Adobe Analytics, Fullstory
GLM 4.7 FlashXHotjar alternatives: Crazy Egg, Fullstory, Microsoft Clarity, Mouseflow
MiniMax M2.5Mixpanel alternatives: Fullstory, PostHog, UXCam
GPT-6 LunaPostHog alternatives: Fullstory, Hotjar

Neither was named

5 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Mouseflow alternatives: Hotjar
GPT-5.4 miniContentsquare, Mouseflow alternatives: LogRocket
Gemini 3.5 FlashPendo alternatives: LogRocket, Mouseflow, PostHog
Qwen 3.7 FlashHotjar alternatives: LogRocket, Matomo
Kimi K2Hotjar alternatives: LogRocket, Mouseflow, Smartlook

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Microsoft Clarity leads by seventy points.
Microsoft Clarity70%#1 of 10
Fullstory0%#10 of 10
The full small business standing →
Mid-marketThe figures above
Microsoft Clarity leads by twenty-four points.
Microsoft Clarity33%#1 of 10
Fullstory9%#3 of 10
The full mid-market standing →
Enterprise
The order flips: Fullstory leads at enterprise.
Fullstory28%#1 of 12
Microsoft Clarity9%#4 of 12
The full enterprise standing →

What the models said about Microsoft Clarity

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“Both Hotjar (now part of Contentsquare) and Microsoft Clarity are consent-agnostic by default: paste the snippet in and they start recording on the first pageview.” Muse Glimmer 30B · negative prompt · hard negative
“"Free" but with a substantial tracking footprint that privacy teams should scrutinize; starts recording immediately without waiting for consent” Kimi K2 · negative prompt · hard negative
“"Free" option with aggressive tracking... Limited default redaction; privacy teams flag its footprint. US-hosted; consent bypass risks in EU.” Grok 4.1 Fast · negative prompt · hard negative
“Microsoft Clarity is the best free option for behaviour analytics, with unlimited session recordings and heatmaps and no paid tier required.” Muse Glimmer 30B · paraphrase prompt · first choice
“Microsoft Clarity delivers unlimited session replays and heatmaps at no cost, making it a favorite for startups and high-traffic sites.” Muse Glimmer 30B · comparative prompt · first choice
“The best session replay and heatmap tool for a company with a limited budget is Microsoft Clarity, as it is free with no session cap.” Llama 4 Maverick · budget prompt · first choice

What the models said about Fullstory

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“Captures enormous amounts of data; privacy and compliance concerns under GDPR/CCPA; may collect more data than teams can realistically act on” Kimi K2 · negative prompt · hard negative
“Skip FullStory/Quantum Metric: While excellent, these tools are generally priced for large enterprises” Qwen 3.7 Flash · direct prompt · hard negative
“If you need high-fidelity replay + search/queryable session intelligence and SOC2-grade compliance: FullStory.” Muse Glimmer 30B · direct prompt · first choice
“FullStory and PostHog mask all text by default ... the "mask by default" approach is significantly safer” Claude Haiku 4.5 · negative prompt · first choice
“Go with FullStory or Contentsquare for deep session replay and journey analytics.” GLM 4.7 FlashX · comparative prompt · first choice
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.