Isabel vs UpToDate:Which is more popular by branded search?
In August 2026, UpToDate had more branded searches than Isabel among clinical decision support platforms worldwide. UpToDate was estimated to have 1M branded searches compared to Isabel’s 165K, and held a 62% Share of Search versus Isabel’s 10.2%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Isabel or UpToDate?
Compare the platforms clinicians check decisions against. 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 UpToDate, Isabel. The figures are in the table below the chart.
View monthly share of search table
| Month | UpToDate | Elsevier | Isabel | Wolters Kluwer | BMJ Best Practice |
|---|---|---|---|---|---|
| Oct 2025 | 65% | 19.6% | 7.2% | 7.2% | 0.96% |
| Nov 2025 | 64.1% | 19.3% | 8.7% | 7.1% | 0.78% |
| Dec 2025 | 61.9% | 18.6% | 10.2% | 8.4% | 0.92% |
| Jan 2026 | 65.4% | 16.1% | 8.8% | 8.8% | 0.79% |
| Feb 2026 | 60.4% | 18.2% | 8.2% | 12.1% | 1.1% |
| Mar 2026 | 63.5% | 19.2% | 7% | 8.6% | 1.7% |
| Apr 2026 | 64.9% | 19.6% | 7.2% | 7.2% | 1.2% |
| May 2026 | 61.8% | 18.6% | 10.2% | 8.3% | 1.1% |
| Jun 2026 | 65.4% | 16.1% | 8.8% | 8.8% | 0.79% |
| Jul 2026 | 64.2% | 15.8% | 10.6% | 8.7% | 0.78% |
| Aug 2026 | 62% | 18.7% | 10.2% | 8.4% | 0.75% |
| Sep 2026 | — | — | — | — | — |
How has the Isabel and UpToDate comparison changed over the last 12 months?
3 findings
- UpToDate was ahead of Isabel in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Isabel’s estimated Share of Search among clinical decision support platforms worldwide moved from 7.2% to 10.2%, and its estimated monthly branded searches moved from 135K to 165K.
- Across the 11 months ending August 2026, UpToDate’s estimated Share of Search among clinical decision support platforms worldwide moved from 65% to 62%, and its estimated monthly branded searches moved from 1.2M to 1M.
How did search popularity change for clinical decision support platforms worldwide in August 2026?
2 changes
In August 2026, UpToDate lost estimated Share of Search among clinical decision support platforms worldwide, from 64.2% to 62%.
Estimated monthly branded searches for Isabel worldwide rose 22.2% over 11 measured months, from 135K to 165K in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using Isabel’s and UpToDate’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.
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