Clerk.io vs Rebuy:Which is more popular?
In September 2026, Rebuy had more branded searches than Clerk.io among ecommerce personalization platforms worldwide. Rebuy had about 590 branded searches, while Clerk.io had 480. Rebuy made up 0.82% of all ecommerce personalization platform searches we track, and Clerk.io accounted for 0.66%. When we asked ChatGPT and Google AI Overviews about ecommerce personalization platforms, Rebuy appeared in two of the five answers and Clerk.io in none.
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Top ecommerce personalization platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Rebuy was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Clerk.io 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.
Bloomreach1st
Nosto2nd
Dynamic Yield3rd
Insider4th
Rebuy5th
Algolia6th
Recombee–
Clerk.io–
LimeSpot–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Bloomreach5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Nosto4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Dynamic Yield4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Insider3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Algolia2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Rebuy2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Recombee0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Clerk.io0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- LimeSpot0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about ecommerce personalization platforms
5 answers
Asked ChatGPT
“Which ecommerce personalization platform should I use?”
Asked ChatGPT
“What are the best ecommerce personalization platforms?”
Asked ChatGPT
“What's the best ecommerce personalization platform for personalised shopping?”
Searched Google, AI Overview
“ecommerce personalization platform”
Searched Google, AI Overview
“best personalization software”
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is Clerk.io or Rebuy more popular in search?
This chart shows how often people search Google for Clerk.io and Rebuy by name. Each line represents a brand's share of searches for all nine ecommerce personalization platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for Rebuy, Clerk.io. The figures are in the table below the chart.
View monthly share of searches table
| Month | Algolia | Bloomreach | Nosto | Dynamic Yield | Recombee | Rebuy | Clerk.io | LimeSpot | Insider |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 57.9% | 21.2% | 7.9% | 7.8% | 2.2% | 1% | 0.84% | 0.64% | 0.46% |
| Nov 2025 | 60.9% | 18.2% | 8.3% | 8.2% | 2% | 0.73% | 0.73% | 0.54% | 0.48% |
| Dec 2025 | 60.5% | 18.1% | 10% | 6.6% | 1.9% | 0.72% | 0.88% | 0.66% | 0.58% |
| Jan 2026 | 59.2% | 21.6% | 8.1% | 6.5% | 1.9% | 0.86% | 0.86% | 0.53% | 0.47% |
| Feb 2026 | 54.6% | 24.4% | 9% | 7.3% | 1.8% | 0.97% | 0.97% | 0.58% | 0.43% |
| Mar 2026 | 57.3% | 21% | 7.8% | 9.4% | 1.9% | 0.83% | 0.83% | 0.53% | 0.45% |
| Apr 2026 | 59.3% | 21.7% | 8% | 6.5% | 1.9% | 0.71% | 0.86% | 0.53% | 0.38% |
| May 2026 | 57.4% | 21% | 9.5% | 7.7% | 1.8% | 0.84% | 0.84% | 0.6% | 0.3% |
| Jun 2026 | 57.6% | 21.1% | 9.5% | 7.7% | 1.4% | 0.84% | 0.84% | 0.6% | 0.37% |
| Jul 2026 | 58.8% | 21.5% | 9.7% | 6.4% | 1.5% | 0.7% | 0.7% | 0.41% | 0.3% |
| Aug 2026 | 58.8% | 21.5% | 9.7% | 6.4% | 1.5% | 0.7% | 0.7% | 0.49% | 0.25% |
| Sep 2026 | 56.1% | 25.1% | 9.2% | 6.1% | 1.4% | 0.82% | 0.66% | 0.37% | 0.24% |
How has the Clerk.io and Rebuy comparison changed over the last 12 months?
3 findings
- The lead changed hands 2 times in the 12 months ending September 2026: Clerk.io took it in December 2025, Rebuy took it in September 2026.
- Across the 12 months ending September 2026, Clerk.io’s share of searches among ecommerce personalization platforms worldwide moved from 0.84% to 0.66%, and its estimated monthly branded searches moved from 720 to 480.
- Across the 12 months ending September 2026, Rebuy’s share of searches among ecommerce personalization platforms worldwide moved from 1% to 0.82%, and its estimated monthly branded searches moved from 880 to 590.
How did search popularity change for ecommerce personalization platforms worldwide in September 2026?
2 changes
In September 2026, Rebuy rose from 7th to 6th among ecommerce personalization platforms worldwide.
In September 2026, Clerk.io fell from 6th to 7th among ecommerce personalization platforms worldwide.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Clerk.io’s and Rebuy’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 ecommerce personalization platforms
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