--- title: "Clerk.io vs Rebuy: Which is searched more?" description: "Is Clerk.io or Rebuy more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Ecommerce personalization platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/clerk-io-vs-rebuy-engine" publisher: "Brandwave" --- # Clerk.io vs Rebuy: Which is searched more? Is Clerk.io or Rebuy more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Ecommerce personalization platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Clerk.io and Rebuy - **Competitive set**: Ecommerce personalization platforms - **Market**: Global - **Month measured**: Sep 2026 - **Clerk.io Share of Search**: 0.66% - **Rebuy Share of Search**: 0.82% ## Is Clerk.io or Rebuy more popular in search? - 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%. - 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. ## 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. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Bloomreach | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Nosto | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Dynamic Yield | 3rd | 3 of 3 | 1 of 2 | 4 of 5 | | Insider | 4th | 1 of 3 | 2 of 2 | 3 of 5 | | Rebuy | 5th | 2 of 3 | 0 of 2 | 2 of 5 | | Algolia | 6th | 2 of 3 | 0 of 2 | 2 of 5 | | Recombee | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Clerk.io | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | LimeSpot | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about ecommerce personalization platforms - Asked ChatGPT "Which ecommerce personalization platform should I use?": 1. Nosto, 2. Bloomreach, 3. Dynamic Yield - Asked ChatGPT "What are the best ecommerce personalization platforms?": 1. Bloomreach, 2. Dynamic Yield, 3. Nosto, 4. Rebuy, 5. Algolia, 6. Insider - Asked ChatGPT "What's the best ecommerce personalization platform for personalised shopping?": 1. Bloomreach, 2. Nosto, 3. Dynamic Yield, 4. Rebuy, 5. Algolia - Searched Google, AI Overview "ecommerce personalization platform": 1. Bloomreach, 2. Dynamic Yield, 3. Nosto, 4. Insider - Searched Google, AI Overview "best personalization software": 1. Insider, 2. Bloomreach Not named in any answer: Recombee, Clerk.io and LimeSpot. Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How did search popularity change for ecommerce personalization platforms worldwide in September 2026? - 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. ## Month by month | Month | Clerk.io estimated searches | Clerk.io Share of Search | Clerk.io rank | Rebuy estimated searches | Rebuy Share of Search | Rebuy rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 720 | 0.84% | 7 | 880 | 1% | 6 | | Nov 2025 | 590 | 0.73% | 6 | 590 | 0.73% | 7 | | Dec 2025 | 590 | 0.88% | 6 | 480 | 0.72% | 7 | | Jan 2026 | 720 | 0.86% | 6 | 720 | 0.86% | 7 | | Feb 2026 | 720 | 0.97% | 6 | 720 | 0.97% | 7 | | Mar 2026 | 720 | 0.83% | 6 | 720 | 0.83% | 7 | | Apr 2026 | 720 | 0.86% | 6 | 590 | 0.71% | 7 | | May 2026 | 590 | 0.84% | 6 | 590 | 0.84% | 7 | | Jun 2026 | 590 | 0.84% | 6 | 590 | 0.84% | 7 | | Jul 2026 | 480 | 0.7% | 6 | 480 | 0.7% | 7 | | Aug 2026 | 480 | 0.7% | 6 | 480 | 0.7% | 7 | | Sep 2026 | 480 | 0.66% | 7 | 590 | 0.82% | 6 | ## How each brand is measured 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. - **Clerk.io**: Measured on the search terms “clerk io” and “clerk.io”, summed into one figure. - **Rebuy**: Measured on the search term “rebuy engine”. - [Clerk.io profile](/demand/global-en/brands/clerk-io) - [Rebuy profile](/demand/global-en/brands/rebuy-engine) - [All ecommerce personalization platforms worldwide](/demand/global-en/categories/ecommerce-personalization-platforms): The set both shares are measured inside, 9 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Clerk.io or Rebuy more popular in search? 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%. ## Cite this page Brandwave. "Clerk.io vs Rebuy: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/clerk-io-vs-rebuy-engine This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/clerk-io-vs-rebuy-engine. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.