PostHog vs VWO:Which is more popular?
In September 2026, PostHog had more branded searches than VWO among A/B testing platforms worldwide. PostHog had about 246,000 branded searches, while VWO had 34,100. PostHog made up 40.6% of all A/B testing platform searches we track, and VWO accounted for 5.6%. When we asked ChatGPT and Google AI Overviews about A/B testing platforms, PostHog and VWO each appeared in four of the five answers. PostHog was mentioned before VWO in three out of four answers.
Who do people search for more?
PostHog, about 7 searches for every 1 for VWO
Who does AI mention more?
Both were mentioned in 4 of 5 answers.
Who does AI recommend more?
PostHog, named ahead of VWO in 3 of 4 answers
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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 and VWO were each mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. PostHog was listed before VWO in three out of four answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
- PostHog1st
Optimizely2nd
Statsig3rd
VWO4th
AB Tasty5th
GrowthBook6th
LaunchDarkly7th
Convert Experiences8th
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
- 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
- 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 PostHog or VWO more popular in search?
This chart shows how often people search Google for PostHog and VWO by name. Each line represents a brand's share of searches for all eight A/B testing platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for PostHog, VWO. The figures are in the table below the chart.
View monthly share of searches table
| Month | Optimizely | PostHog | LaunchDarkly | VWO | Statsig | GrowthBook | AB Tasty | Convert Experiences |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 48.6% | 21.7% | 9.8% | 10.1% | 5.4% | 2.4% | 2% | 0.09% |
| Nov 2025 | 52.4% | 23.4% | 7% | 8.9% | 3.9% | 2.6% | 1.7% | 0.09% |
| Dec 2025 | 52.6% | 23.5% | 7.1% | 8.9% | 3.9% | 2.6% | 1.4% | 0.08% |
| Jan 2026 | 50.8% | 22.8% | 6.8% | 12.7% | 3.1% | 2.1% | 1.7% | 0.08% |
| Feb 2026 | 51.5% | 18.9% | 8.5% | 12.9% | 3.8% | 2.6% | 1.7% | 0.11% |
| Mar 2026 | 44.3% | 29.7% | 7.3% | 11.1% | 3.3% | 2.7% | 1.5% | 0.12% |
| Apr 2026 | 49.6% | 22.2% | 8.2% | 10.2% | 4.5% | 3.7% | 1.6% | 0.09% |
| May 2026 | 48.4% | 26.5% | 6.5% | 9.9% | 4.4% | 2.9% | 1.3% | 0.07% |
| Jun 2026 | 42.4% | 34.7% | 7% | 8.7% | 3.1% | 2.6% | 1.4% | 0.07% |
| Jul 2026 | 43.2% | 35.3% | 7.1% | 7.3% | 3.2% | 2.6% | 1.2% | 0.07% |
| Aug 2026 | 44.9% | 36.7% | 6% | 6.2% | 2.7% | 2.2% | 1.2% | 0.06% |
| Sep 2026 | 40.6% | 40.6% | 6.7% | 5.6% | 3% | 2.5% | 1.1% | 0.06% |
How has the PostHog and VWO comparison changed over the last 12 months?
3 findings
- PostHog was ahead of VWO in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, PostHog’s share of searches among A/B testing platforms worldwide moved from 21.7% to 40.6%, and its estimated monthly branded searches moved from 110K to 246K.
- Across the 12 months ending September 2026, VWO’s share of searches among A/B testing platforms worldwide moved from 10.1% to 5.6%, and its estimated monthly branded searches moved from 50.9K to 34.1K.
How did search popularity change for A/B testing platforms worldwide in September 2026?
3 changes
In September 2026, LaunchDarkly overtook VWO to rank 3rd among A/B testing platforms worldwide, with 6.7% of the searches.
In September 2026, PostHog gained share of searches among A/B testing platforms worldwide, from 36.7% to 40.6%.
In September 2026, VWO lost share of searches among A/B testing platforms worldwide, from 6.2% to 5.6%.
How are branded searches counted?
4 search terms
Brandwave collects information about searches that people make online using PostHog’s and VWO’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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