Eppo vs PostHog:Which is more popular?
In September 2026, PostHog had more branded searches than Eppo among A/B testing platforms worldwide. PostHog had about 246,000 branded searches, while Eppo had 40,500. PostHog made up 37.8% of all A/B testing platform searches we track, and Eppo accounted for 6.2%. When we asked ChatGPT and Google AI Overviews about A/B testing platforms, PostHog appeared in four of the five answers and Eppo in two. PostHog was mentioned before Eppo in every answer.
Who do people search for more?
PostHog, about 6 searches for every 1 for Eppo
Who does AI mention more?
PostHog, mentioned in 4 of 5 answers, Eppo in 2
Who does AI recommend more?
PostHog, named ahead of Eppo in every answer
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Top A/B testing platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, PostHog was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Eppo was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. PostHog was listed before Eppo in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
- PostHog1st
Statsig2nd
Optimizely3rd
VWO4th
GrowthBook5th
AB Tasty6th
LaunchDarkly7th
Eppo8th
Convert Experiences9th
Split10th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Optimizely4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- PostHog4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- VWO4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Statsig3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- GrowthBook3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Eppo2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- LaunchDarkly2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- AB Tasty2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Split1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Convert Experiences1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about A/B testing platforms
5 answers
Asked ChatGPT
“Which A/B testing platform should I use?”
Asked ChatGPT
“What are the best A/B testing platforms?”
Asked ChatGPT
“What's the best A/B testing platform for A marketing team?”
Searched Google, AI Overview
“a/b testing platform”
Searched Google, AI Overview
“website testing software”
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is Eppo or PostHog more popular in search?
This chart shows how often people search Google for Eppo and PostHog by name. Each line represents a brand's share of searches for all ten A/B testing platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for PostHog, Eppo. The figures are in the table below the chart.
View monthly share of searches table
| Month | Optimizely | PostHog | Eppo | LaunchDarkly | VWO | Statsig | GrowthBook | AB Tasty | Split | Convert Experiences |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 44.7% | 20% | 7.4% | 9% | 9.2% | 4.9% | 2.2% | 1.8% | 0.68% | 0.09% |
| Nov 2025 | 47.9% | 21.4% | 7.9% | 6.4% | 8.1% | 3.5% | 2.4% | 1.6% | 0.64% | 0.08% |
| Dec 2025 | 48.1% | 21.5% | 7.9% | 6.5% | 8.1% | 3.5% | 2.4% | 1.3% | 0.54% | 0.07% |
| Jan 2026 | 47.3% | 21.2% | 6.4% | 6.4% | 11.8% | 2.8% | 1.9% | 1.6% | 0.53% | 0.07% |
| Feb 2026 | 47.2% | 17.4% | 7.8% | 7.8% | 11.8% | 3.5% | 2.3% | 1.6% | 0.53% | 0.1% |
| Mar 2026 | 41.1% | 27.5% | 6.8% | 6.8% | 10.3% | 3% | 2.5% | 1.4% | 0.6% | 0.11% |
| Apr 2026 | 44.8% | 20% | 9% | 7.4% | 9.3% | 4% | 3.3% | 1.5% | 0.53% | 0.09% |
| May 2026 | 43.9% | 24.1% | 8.8% | 5.9% | 9% | 4% | 2.7% | 1.2% | 0.5% | 0.07% |
| Jun 2026 | 39.5% | 32.3% | 6.5% | 6.5% | 8.1% | 2.9% | 2.4% | 1.3% | 0.44% | 0.07% |
| Jul 2026 | 40.2% | 32.9% | 6.6% | 6.6% | 6.8% | 3% | 2.4% | 1.1% | 0.39% | 0.07% |
| Aug 2026 | 41.6% | 34% | 6.9% | 5.6% | 5.7% | 2.5% | 2.1% | 1.1% | 0.41% | 0.06% |
| Sep 2026 | 37.8% | 37.8% | 6.2% | 6.2% | 5.2% | 2.8% | 2.3% | 1% | 0.45% | 0.05% |
How has the Eppo and PostHog comparison changed over the last 12 months?
3 findings
- PostHog was ahead of Eppo in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Eppo’s share of searches among A/B testing platforms worldwide moved from 7.4% to 6.2%, and its estimated monthly branded searches held steady at 40.5K.
- Across the 12 months ending September 2026, PostHog’s share of searches among A/B testing platforms worldwide moved from 20% to 37.8%, and its estimated monthly branded searches moved from 110K to 246K.
How did search popularity change for A/B testing platforms worldwide in September 2026?
2 changes
In September 2026, PostHog gained share of searches among A/B testing platforms worldwide, from 34% to 37.8%.
In September 2026, Eppo lost share of searches among A/B testing platforms worldwide, from 6.9% to 6.2%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Eppo’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 A/B testing platforms
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