Merlin vs Sider:Which is more popular by branded search?
In August 2026, Merlin had more branded searches than Sider among AI browser extensions worldwide. Merlin was estimated to have 60.5K branded searches compared to Sider’s 27.1K, and held a 31.7% Share of Search versus Sider’s 14.2%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Merlin or Sider?
Compare the extensions that add AI to the browser. 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.
Share of Search by month for Merlin, Sider. The figures are in the table below the chart.
View monthly share of search table
| Month | Monica | Merlin | Sider | Harpa | MaxAI |
|---|---|---|---|---|---|
| Oct 2025 | 42.4% | 28.4% | 23.3% | 3.8% | 2.1% |
| Nov 2025 | 41.6% | 28% | 22.9% | 4.6% | 3.1% |
| Dec 2025 | 43.5% | 29.1% | 19.5% | 4.8% | 3.2% |
| Jan 2026 | 43.1% | 28.8% | 19.3% | 5.8% | 3.1% |
| Feb 2026 | 53% | 23.8% | 15.9% | 4.8% | 2.6% |
| Mar 2026 | 55.7% | 20.4% | 16.7% | 5% | 2.2% |
| Apr 2026 | 47.3% | 26% | 17.4% | 6.4% | 2.8% |
| May 2026 | 45.6% | 25.1% | 20.5% | 6.1% | 2.7% |
| Jun 2026 | 45.1% | 30.2% | 16.5% | 4.9% | 3.3% |
| Jul 2026 | 47.5% | 31.7% | 14.2% | 4.2% | 2.3% |
| Aug 2026 | 47.5% | 31.7% | 14.2% | 4.2% | 2.3% |
| Sep 2026 | — | — | — | — | — |
How has the Merlin and Sider comparison changed over the last 12 months?
3 findings
- Merlin was ahead of Sider in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Merlin’s estimated Share of Search among AI browser extensions worldwide moved from 28.4% to 31.7%, and its estimated monthly branded searches moved from 90.5K to 60.5K.
- Across the 11 months ending August 2026, Sider’s estimated Share of Search among AI browser extensions worldwide moved from 23.3% to 14.2%, and its estimated monthly branded searches moved from 74K to 27.1K.
How did search popularity change for AI browser extensions worldwide in August 2026?
2 changes
How each brand is measured
Brandwave collects information about searches that people make online using Merlin’s and Sider’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.
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.