GrowthBook vs Statsig:Which is more popular?
In September 2026, GrowthBook had more branded searches than Statsig among A/B testing tools in New Zealand. GrowthBook had about 70 branded searches, while Statsig had 50. GrowthBook made up 4.7% of all A/B testing tool searches we track, and Statsig accounted for 3.3%. When we asked ChatGPT and Google AI Overviews about A/B testing tools, GrowthBook appeared in all five answers and Statsig in two. GrowthBook was mentioned before Statsig in every answer.
Who do people search for more?
GrowthBook, about 40% more searches than Statsig
Who does AI mention more?
GrowthBook, mentioned in every answer we collected
Who does AI recommend more?
GrowthBook, named ahead of Statsig in every answer
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Top A/B testing tools in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, GrowthBook appeared in all five answers. Statsig was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. GrowthBook was listed before Statsig in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
VWO1st
PostHog2nd
Optimizely3rd- GrowthBook4th
Convert Experiences5th
AB Tasty6th
Statsig7th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Optimizely5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- GrowthBook5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- VWO5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- PostHog4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- AB Tasty4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Convert Experiences3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Statsig2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
See every answer about A/B testing tools
5 answers
Asked ChatGPT
“Which A/B testing tool should I use in New Zealand?”
Asked ChatGPT
“What are the best A/B testing tools in New Zealand?”
Asked ChatGPT
“What's the best A/B testing tool in New Zealand for website conversion testing?”
Searched Google, AI Overview
“a/b testing tools”
Searched Google, AI Overview
“best ab testing tool”
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 20, 2026.
Is GrowthBook or Statsig more popular in search?
This chart shows how often people search Google for GrowthBook and Statsig by name. Each line represents a brand's share of searches for all seven A/B testing tools we track, month by month, from searches in New Zealand.
Share of searches by month for GrowthBook, Statsig. The figures are in the table below the chart.
View monthly share of searches table
| Month | PostHog | Optimizely | GrowthBook | Statsig | AB Tasty | Convert Experiences | VWO |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 36.9% | 46.9% | 3.8% | 8.5% | 1.5% | 1.5% | 0.77% |
| Nov 2025 | 37.9% | 47.6% | 4.9% | 5.8% | 0.97% | 1.9% | 0.97% |
| Dec 2025 | 41.5% | 42.6% | 5.3% | 7.4% | 1.1% | 1.1% | 1.1% |
| Jan 2026 | 41.4% | 41.4% | 7.8% | 5.2% | 2.6% | 0.86% | 0.86% |
| Feb 2026 | 36.1% | 44.4% | 6.5% | 7.4% | 1.9% | 1.9% | 1.9% |
| Mar 2026 | 41.3% | 42.7% | 4.9% | 8.4% | 1.4% | 0.7% | 0.7% |
| Apr 2026 | 34.2% | 43% | 7.9% | 7.9% | 3.5% | 1.8% | 1.8% |
| May 2026 | 36.6% | 46.6% | 6.9% | 6.9% | 1.5% | 0.76% | 0.76% |
| Jun 2026 | 52.1% | 36.7% | 5.3% | 4.1% | 0.59% | 0.59% | 0.59% |
| Jul 2026 | 49.7% | 35.2% | 7.6% | 3.4% | 1.4% | 1.4% | 1.4% |
| Aug 2026 | 47.7% | 41.1% | 6% | 2.6% | 1.3% | 0.66% | 0.66% |
| Sep 2026 | 48% | 41.3% | 4.7% | 3.3% | 1.3% | 0.67% | 0.67% |
How has the GrowthBook and Statsig comparison changed over the last 12 months?
3 findings
- The lead changed hands 3 times in the 12 months ending September 2026: GrowthBook took it in January 2026, Statsig took it in February 2026, GrowthBook took it in June 2026.
- Across the 12 months ending September 2026, GrowthBook’s share of searches among A/B testing tools in New Zealand moved from 3.8% to 4.7%, and its estimated monthly branded searches moved from 50 to 70.
- Across the 12 months ending September 2026, Statsig’s share of searches among A/B testing tools in New Zealand moved from 8.5% to 3.3%, and its estimated monthly branded searches moved from 110 to 50.
How did search popularity change for New Zealand A/B testing tools in September 2026?
2 changes
In September 2026, Statsig gained share of searches among A/B testing tools in New Zealand, from 2.6% to 3.3%.
In September 2026, GrowthBook lost share of searches among A/B testing tools in New Zealand, from 6% to 4.7%.
How are branded searches counted?
4 search terms
Brandwave collects information about searches that people make online using GrowthBook’s and Statsig’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.
GrowthBook
1 branded search term
- growthbook
Statsig
3 branded search terms
- statsig
- statsig ab testing
- statsig experimentation
Other head-to-heads among A/B testing tools
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