Brandwave

Fullstory vs Thunderhead:Which is more popular?

In September 2026, Thunderhead had more branded searches than Fullstory among customer journey analytics worldwide. Thunderhead had about 14,800 branded searches, while Fullstory had 10,100. Thunderhead made up 5.2% of all customer journey analytics searches we track, and Fullstory accounted for 3.5%. When we asked ChatGPT and Google AI Overviews about customer journey analytics, Fullstory appeared in two of the five answers and Thunderhead in none.

Among customer journey analytics worldwide in September 2026

Who do people search for more?

Thunderhead, about 46% more searches than Fullstory

Thunderhead 14.8K searchesFullstory 10.1K searches

Who does AI mention more?

Fullstory, mentioned in 2 of 5 answers, Thunderhead in 0

Fullstory in 2 of 5Thunderhead in 0 of 5

Who does AI recommend more?

Fullstory, the only one of the two named

Fullstory first in 2Thunderhead never named

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Top customer journey analytics in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Fullstory was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Thunderhead did not appear in any of the five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Contentsquare1st
  2. Amplitude2nd
  3. Mixpanel3rd
  4. UXPressia4th
  5. Fullstory5th
  6. Glassbox6th
  7. CSG–
  8. Thunderhead–
  9. Adobe Workfront–
  10. ClickFox–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Contentsquare4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Mixpanel2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Fullstory2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • UXPressia2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Amplitude2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Glassbox2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Adobe Workfront1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • CSG0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Thunderhead0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • ClickFox0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about customer journey analytics

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Fullstory or Thunderhead more popular in search?

This chart shows how often people search Google for Fullstory and Thunderhead by name. Each line represents a brand's share of searches for all ten customer journey analytics we track, month by month, from English-language searches worldwide.

Fullstory and Thunderhead among customer journey analytics worldwide, by month

Share of searches by month for Thunderhead, Fullstory. The figures are in the table below the chart.

View monthly share of searches table
MonthCSGMixpanelContentsquareThunderheadFullstoryAdobe WorkfrontUXPressiaAmplitudeClickFoxGlassbox
Oct 202569.6%14.1%4.2%4.2%3.5%2.3%1%1.1%0.03%<0.01%
Nov 202554.4%30%4%4%3.3%2.2%0.97%1.1%0.04%<0.01%
Dec 202556.7%25.7%4.2%5.1%3.5%2.3%1%1.4%0.04%<0.01%
Jan 202675.9%12.6%3.7%2.5%2.1%1.7%0.61%0.84%0.03%<0.01%
Feb 202680.2%7.4%4%2.6%1.8%2.2%0.64%1.1%0.03%<0.01%
Mar 202661.9%15.5%6.8%5.6%3.2%3.7%1.1%2%0.04%<0.01%
Apr 202661.6%15.4%6.8%5.5%3.9%3.7%1.3%1.6%0.04%<0.01%
May 202661.3%15.3%6.7%6.7%3.2%3.7%1.1%2%0.04%0.01%
Jun 202656.6%21%6.2%5.1%5.2%3.4%0.65%1.8%0.06%0.01%
Jul 202655%20.5%7.4%6%4.1%4%0.77%2.2%0.06%<0.01%
Aug 202661%15.2%5.5%6.7%5.5%3.7%0.89%1.5%0.05%<0.01%
Sep 202657.7%21.3%6.3%5.2%3.5%3.5%1.3%1.2%0.05%<0.01%

How has the Fullstory and Thunderhead comparison changed over the last 12 months?

3 findings
  • The lead changed hands 2 times in the 12 months ending September 2026: Fullstory took it in June 2026, Thunderhead took it in July 2026.
  • Across the 12 months ending September 2026, Fullstory’s share of searches among customer journey analytics worldwide held steady at 3.5%, and its estimated monthly branded searches moved from 18.5K to 10.1K.
  • Across the 12 months ending September 2026, Thunderhead’s share of searches among customer journey analytics worldwide moved from 4.2% to 5.2%, and its estimated monthly branded searches moved from 22.2K to 14.8K.

How did search popularity change for customer journey analytics worldwide in September 2026?

3 changes

  1. In September 2026, Contentsquare overtook Thunderhead and Fullstory to rank 3rd among customer journey analytics worldwide, with 6.3% of the searches.

  2. In September 2026, Fullstory lost share of searches among customer journey analytics worldwide, from 5.5% to 3.5%.

  3. In September 2026, Thunderhead lost share of searches among customer journey analytics worldwide, from 6.7% to 5.2%.

How are branded searches counted?

4 search terms

Brandwave collects information about searches that people make online using Fullstory’s and Thunderhead’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

3 branded search terms

  • fullstory
  • fullstory session replay
  • fullstory software

Thunderhead

1 branded search term

  • thunderhead

How the Brand Demand Index is measured

Other head-to-heads among customer journey analytics

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