Brandwave

Flagsmith vs GrowthBook:Which is more popular?

In September 2026, GrowthBook had more branded searches than Flagsmith among feature flag tools worldwide. GrowthBook had about 14,900 branded searches, while Flagsmith had 4,510. GrowthBook made up 2.6% of all feature flag tool searches we track, and Flagsmith accounted for 0.78%. When we asked ChatGPT and Google AI Overviews about feature flag tools, Flagsmith appeared in all five answers and GrowthBook in four. Flagsmith was mentioned before GrowthBook in three out of five answers.

Among feature flag tools worldwide in September 2026

Who do people search for more?

GrowthBook, about 3 searches for every 1 for Flagsmith

GrowthBook 14.9K searchesFlagsmith 4.5K searches

Who does AI mention more?

Flagsmith, mentioned in every answer we collected

Flagsmith in 5 of 5GrowthBook in 4 of 5

Who does AI recommend more?

Flagsmith, named ahead of GrowthBook in 3 of 5 answers

Flagsmith first in 3GrowthBook first in 2

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Top feature flag tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Flagsmith appeared in all five answers. GrowthBook was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Flagsmith was listed before GrowthBook in three out of five answers.

Most recommended by AI

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

  1. LaunchDarkly1st
  2. Unleash2nd
  3. Flagsmith3rd
  4. Statsig4th
  5. GrowthBook5th
  6. PostHog6th
  7. Split6th
  8. ConfigCat8th
  9. Optimizely–

Mentioned by AI

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

  • LaunchDarkly5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Flagsmith5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Unleash5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • GrowthBook4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Statsig3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • PostHog2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • ConfigCat1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Split1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Optimizely0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about feature flag tools

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 Flagsmith or GrowthBook more popular in search?

This chart shows how often people search Google for Flagsmith and GrowthBook by name. Each line represents a brand's share of searches for all nine feature flag tools we track, month by month, from English-language searches worldwide.

Flagsmith and GrowthBook among feature flag tools worldwide, by month

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

View monthly share of searches table
MonthOptimizelyPostHogLaunchDarklyStatsigGrowthBookFlagsmithConfigCatSplitUnleash
Oct 202553.4%23.9%11%5.9%2.6%0.97%0.79%0.82%0.5%
Nov 202556.6%25.3%7.9%4.2%2.8%1%0.84%0.75%0.51%
Dec 202556.8%25.4%7.9%4.2%2.8%1%0.68%0.64%0.5%
Jan 202657.7%25.9%8%3.5%2.3%0.86%0.7%0.65%0.42%
Feb 202658.2%21.4%10.1%4.3%2.9%1.1%0.86%0.66%0.52%
Mar 202649%32.8%8.5%3.7%3%1.1%0.73%0.72%0.55%
Apr 202654.3%24.3%9.4%5%4%0.99%0.8%0.64%0.48%
May 202652.6%28.9%7.8%4.8%3.2%0.96%0.63%0.6%0.47%
Jun 202645.6%37.3%8.3%3.4%2.8%1%0.68%0.51%0.41%
Jul 202645.7%37.3%8.4%3.4%2.8%0.85%0.68%0.44%0.41%
Aug 202647.1%38.5%6.8%2.9%2.3%0.86%0.7%0.47%0.41%
Sep 202642.4%42.4%7.3%3.2%2.6%0.78%0.62%0.5%0.32%

How has the Flagsmith and GrowthBook comparison changed over the last 12 months?

3 findings
  • GrowthBook was ahead of Flagsmith in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Flagsmith’s share of searches among feature flag tools worldwide moved from 0.97% to 0.78%, and its estimated monthly branded searches held steady at 4.5K.
  • Across the 12 months ending September 2026, GrowthBook’s share of searches among feature flag tools worldwide held steady at 2.6%, and its estimated monthly branded searches moved from 12.2K to 14.9K.

How did search popularity change for feature flag tools worldwide in September 2026?

1 change

  1. Estimated monthly branded searches for GrowthBook worldwide rose 22.3% over 12 measured months, from 12.2K to 14.9K in September 2026.

How are branded searches counted?

5 search terms

Brandwave collects information about searches that people make online using Flagsmith’s and GrowthBook’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.

Flagsmith

2 branded search terms

  • flagsmith
  • flagsmith feature flags

GrowthBook

3 branded search terms

  • growth book
  • growthbook
  • growthbook feature flags

How the Brand Demand Index is measured

Other head-to-heads among feature flag tools

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