Fullstory vs PostHog:Which is more popular?
In September 2026, PostHog had more branded searches than Fullstory among heatmap and session replay tools in New Zealand. PostHog had about 720 branded searches, while Fullstory had 30. PostHog made up 41.4% of all heatmap and session replay tool searches we track, and Fullstory accounted for 1.7%. When we asked ChatGPT and Google AI Overviews about heatmap and session replay tools, PostHog appeared in three of the five answers and Fullstory in one. PostHog was mentioned before Fullstory in two out of three answers that named either.
Who do people search for more?
PostHog, about 24 searches for every 1 for Fullstory
Who does AI mention more?
PostHog, mentioned in 3 of 5 answers, Fullstory in 1
Who does AI recommend more?
PostHog, named ahead of Fullstory in 2 of 3 answers
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Top heatmap and session replay tools in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, PostHog was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Fullstory was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. PostHog was listed before Fullstory in two out of three answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Microsoft Clarity1st
Contentsquare2nd- Hotjar3rd
- PostHog4th
Mouseflow5th
Fullstory6th
Lucky Orange7th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Hotjar5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Microsoft Clarity4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- PostHog3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Contentsquare3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Mouseflow2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Lucky Orange1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Fullstory1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about heatmap and session replay tools
5 answers
Asked ChatGPT
“Which heatmap and session replay tool should I use in New Zealand?”
Asked ChatGPT
“What are the best heatmap and session replay tools in New Zealand?”
Asked ChatGPT
“What's the best heatmap and session replay tool in New Zealand for website analytics?”
Searched Google, AI Overview
“website heatmap software”
Searched Google, AI Overview
“user behaviour analytics tool”
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is Fullstory or PostHog more popular in search?
This chart shows how often people search Google for Fullstory and PostHog by name. Each line represents a brand's share of searches for all seven heatmap and session replay tools we track, month by month, from searches in New Zealand.
Share of searches by month for PostHog, Fullstory. The figures are in the table below the chart.
View monthly share of searches table
| Month | PostHog | Microsoft Clarity | Hotjar | Contentsquare | Lucky Orange | Fullstory | Mouseflow |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 27.9% | 27.9% | 34.3% | 2.3% | 2.3% | 4.1% | 1.2% |
| Nov 2025 | 23.9% | 29.4% | 36.2% | 3.1% | 2.5% | 3.1% | 1.8% |
| Dec 2025 | 33.6% | 27.6% | 27.6% | 3.4% | 1.7% | 4.3% | 1.7% |
| Jan 2026 | 32.2% | 32.2% | 26.2% | 3.4% | 2% | 3.4% | 0.67% |
| Feb 2026 | 26.7% | 40.4% | 21.9% | 4.1% | 3.4% | 2.1% | 1.4% |
| Mar 2026 | 36.4% | 36.4% | 16% | 3.1% | 4.9% | 1.9% | 1.2% |
| Apr 2026 | 25.2% | 46.5% | 16.8% | 4.5% | 3.2% | 1.9% | 1.9% |
| May 2026 | 32.4% | 39.9% | 17.6% | 4.7% | 2% | 2% | 1.4% |
| Jun 2026 | 40.4% | 33% | 17.9% | 3.2% | 1.8% | 2.3% | 1.4% |
| Jul 2026 | 39.8% | 39.8% | 14.4% | 2.8% | 1.7% | 1.1% | 0.55% |
| Aug 2026 | 38.1% | 38.1% | 13.8% | 2.6% | 3.7% | 2.1% | 1.6% |
| Sep 2026 | 41.4% | 33.9% | 14.9% | 4% | 2.3% | 1.7% | 1.7% |
How has the Fullstory and PostHog comparison changed over the last 12 months?
3 findings
- PostHog was ahead of Fullstory in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Fullstory’s share of searches among heatmap and session replay tools in New Zealand moved from 4.1% to 1.7%, and its estimated monthly branded searches moved from 70 to 30.
- Across the 12 months ending September 2026, PostHog’s share of searches among heatmap and session replay tools in New Zealand moved from 27.9% to 41.4%, and its estimated monthly branded searches moved from 480 to 720.
How did search popularity change for New Zealand heatmap and session replay tools in September 2026?
2 changes
In September 2026, PostHog overtook Microsoft Clarity to become the leader among heatmap and session replay tools in New Zealand, with 41.4% of the searches.
Estimated monthly branded searches for Fullstory in New Zealand fell 57.1% over 12 measured months, from 70 to 30 in September 2026.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Fullstory’s and PostHog’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Other head-to-heads among heatmap and session replay tools
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