Session replay and heatmaps · November 2026 Edition
Fullstory vs PostHog
Three of fourteen models named Fullstory first on the direct prompt; two named PostHog. Both were named by all fourteen models and Fullstory carries 52 labels and PostHog 37, so the shares are not directly comparable.
Named in six categories this edition.
Named in nine categories this edition.
First-choice share10%6%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate31%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#5A position in a field of 16; printed, not drawn.
Labels5237A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Fullstory reading right to left. Rank and label count are printed, not drawn.Microsoft Clarity was named alongside these two in eleven of the fourteen direct answers. Microsoft Clarity vs Fullstory · Microsoft Clarity vs PostHog · Hotjar vs Fullstory
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.
FullstoryFirst choices, of fourteen modelsPostHog
Direct322 against Fullstory
Paraphrase013 against Fullstory
Comparative00
Budget-constrained00
Scale-constrained201 against Fullstory
Negative1110 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 November 2026 Edition, Fullstory and PostHog were named in the same answer 115 times, of the 254 answers naming Fullstory and the 486 naming PostHog. In those answers PostHog took the first choice fourteen times and Fullstory thirteen.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Fullstory and PostHog stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | |||||
| GPT-5.4 mini | | | | | ||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | | ||
| Grok 4.20 | | | | | | |
| 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 | | | | | |
Fullstory PostHog first choice named as an alternative argued againstblank: not namedEach cell is one answer, Fullstory on the left and PostHog on the right.The direct prompt
The plain question, one answer per model, grouped by where Fullstory and PostHog stood in it.
Fullstory first, PostHog an alternative
3 of 14 modelsPostHog was named in the answer but not as the choice, or not at all.GPT-5.4 miniFullstory alternatives: Contentsquare, Glassbox, Hotjar, LogRocket
GPT-6 LunaFullstory alternatives: Contentsquare, PostHog
Muse Glimmer 30BFullstory alternatives: Contentsquare, Hotjar, Microsoft Clarity
PostHog first, Fullstory an alternative
2 of 14 modelsFullstory was named in the answer but not as the choice, or not at all.Gemini 3.5 FlashPostHog alternatives: Fullstory, Hotjar, LogRocket, Microsoft Clarity
Kimi K2PostHog alternatives: LogRocket, Mouseflow
Neither was the first choice, one was named
6 of 14 modelsThe answer put something else first and named one of the two as an alternative.Claude Haiku 4.5Hotjar, Mouseflow alternatives: Fullstory, Microsoft Clarity
Mistral SmallHotjar alternatives: Fullstory, LogRocket, Microsoft Clarity, PostHog
DeepSeek V4 FlashHotjar alternatives: Amplitude Session Replay, Fullstory, LogRocket, Microsoft Clarity, Mouseflow
Llama 4 MaverickMouseflow alternatives: Fullstory, Hotjar, Microsoft Clarity, UXCam
Qwen 3.7 FlashLogRocket alternatives: Hotjar, Microsoft Clarity, PostHog
MiniMax M2.5Microsoft Clarity alternatives: Fullstory, Hotjar, LogRocket
Neither was named
3 of 14 modelsThe answer made no first choice from these two in this category.Perplexity SonarHotjar alternatives: Amplitude Session Replay, Microsoft Clarity, Mouseflow
Grok 4.20Hotjar alternatives: Microsoft Clarity, Mouseflow
GLM 4.7 FlashXMicrosoft Clarity alternatives: Contentsquare, Glassbox, LogRocket, UXCam
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
PostHog leads by four points.
PostHog4%#3 of 11Fullstory0%#11 of 11Mid-marketThe figures above
The order flips: Fullstory leads at mid-market.
Fullstory10%#4 of 16PostHog6%#5 of 16Enterprise
Fullstory leads by thirty-four points.
Fullstory36%#1 of 12PostHog2%#8 of 12What the models said about Fullstory
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Captures extensive session data (including potential PII). Noted in older FTC/exfiltration discussions; demands strict default masking and governance.” Grok 4.20 · negative prompt · hard negative
“Another high-risk tool due to its ability to capture keystrokes and sensitive form data... best avoided” Mistral Small · negative prompt · hard negative
“Named in active CIPA lawsuits; Princeton research found it capturing passwords, credit card numbers” Kimi K2 · negative prompt · hard negative
“FullStory is consistently positioned as the mid-market / enterprise pick when replay needs to connect to product analytics, developer context and data workflows.” Muse Glimmer 30B · direct prompt · first choice
“A comparatively stronger starting point—not a guarantee: Fullstory's *Private by Default* mode says text isn't sent unless explicitly allowlisted.” GPT-6 Luna · negative prompt · first choice
“FullStory | UX/Product analytics, zero-config, enterprise-grade masking, AI insights | Captures 100% sessions. Strong privacy controls.” DeepSeek V4 Flash · scale prompt · first choice
What the models said about PostHog
No label in this category carried a quote.
Also compared
Microsoft Clarity vs FullstoryMicrosoft Clarity vs PostHogHotjar vs FullstoryHotjar vs PostHogDealfront vs FullstoryDealfront vs PostHogFullstory vs MouseflowFullstory vs LogRocketFullstory vs ContentsquarePostHog vs MouseflowPostHog vs LogRocketPostHog vs ContentsquareAll twenty-eight head-to-head pages and the full session replay standing
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.