---
title: "Fullstory vs PostHog: Which is searched more?"
description: "Is Fullstory or PostHog more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Session replay tools set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/global-en/categories/session-replay-tools/compare/fullstory-vs-posthog"
publisher: "Brandwave"
---

# Fullstory vs PostHog: Which is searched more?

Is Fullstory or PostHog more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Session replay tools set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Compared**: Fullstory and PostHog
- **Competitive set**: Session replay tools
- **Market**: Global
- **Month measured**: Sep 2026
- **Fullstory Share of Search**: 1.7%
- **PostHog Share of Search**: 42.2%

## Is Fullstory or PostHog more popular in search?

- In September 2026, PostHog had more branded searches than Fullstory among session replay tools worldwide. PostHog had about 246,000 branded searches, while Fullstory had 9,990. PostHog made up 42.2% of all session replay tool searches we track, and Fullstory accounted for 1.7%.
- 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 session replay tools worldwide moved from 4.2% to 1.7%, and its estimated monthly branded searches moved from 18.3K to 10K.
- Across the 12 months ending September 2026, PostHog’s share of searches among session replay tools worldwide moved from 25.2% to 42.2%, and its estimated monthly branded searches moved from 110K to 246K.

## How did search popularity change for session replay tools worldwide in September 2026?

- In September 2026, Fullstory lost share of searches among session replay tools worldwide, from 3.1% to 1.7%.
- Estimated monthly branded searches for PostHog worldwide rose 123.6% over 12 measured months, from 110K to 246K in September 2026.

## Month by month

| Month | Fullstory estimated searches | Fullstory Share of Search | Fullstory rank | PostHog estimated searches | PostHog Share of Search | PostHog rank |
| --- | --- | --- | --- | --- | --- | --- |
| Oct 2025 | 18.3K | 4.2% | 5 | 110K | 25.2% | 3 |
| Nov 2025 | 14.9K | 3.7% | 6 | 110K | 27.5% | 3 |
| Dec 2025 | 12.3K | 3.3% | 6 | 110K | 29.4% | 2 |
| Jan 2026 | 12.2K | 2.7% | 6 | 135K | 29.9% | 2 |
| Feb 2026 | 10.1K | 2.8% | 6 | 90.5K | 24.7% | 2 |
| Mar 2026 | 10.2K | 2.4% | 6 | 165K | 38.4% | 1 |
| Apr 2026 | 12.4K | 3.3% | 6 | 110K | 29.2% | 2 |
| May 2026 | 8.4K | 2.1% | 6 | 135K | 33.1% | 2 |
| Jun 2026 | 14.9K | 2.9% | 5 | 201K | 39.3% | 1 |
| Jul 2026 | 10K | 2.1% | 6 | 201K | 42.4% | 1 |
| Aug 2026 | 14.9K | 3.1% | 4 | 201K | 41.7% | 1 |
| Sep 2026 | 10K | 1.7% | 6 | 246K | 42.2% | 1 |

## How each brand is measured

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.

- **Fullstory**: Measured on the search terms “fullstory” and “fullstory session replay”, summed into one figure.
- **PostHog**: Measured on the search term “posthog”.

- [Fullstory profile](/demand/global-en/brands/fullstory)
- [PostHog profile](/demand/global-en/brands/posthog)
- [All session replay tools worldwide](/demand/global-en/categories/session-replay-tools): The set both shares are measured inside, 9 brands.

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Is Fullstory or PostHog more popular in search?

In September 2026, PostHog had more branded searches than Fullstory among session replay tools worldwide. PostHog had about 246,000 branded searches, while Fullstory had 9,990. PostHog made up 42.2% of all session replay tool searches we track, and Fullstory accounted for 1.7%.

## Cite this page

Brandwave. "Fullstory vs PostHog: Which is searched more?". https://gobrandwave.com/demand/global-en/categories/session-replay-tools/compare/fullstory-vs-posthog

This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/session-replay-tools/compare/fullstory-vs-posthog. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.