Isabel vs UpToDate:Which is more popular?
In September 2026, UpToDate had more branded searches than Isabel among clinical decision support platforms worldwide. UpToDate had about 1 million branded searches, while Isabel had 165,000. UpToDate made up 28.2% of all clinical decision support platform searches we track, and Isabel accounted for 4.6%. When we asked ChatGPT and Google AI Overviews about clinical decision support platforms, UpToDate appeared in four of the five answers and Isabel in none.
Who do people search for more?
UpToDate, about 6 searches for every 1 for Isabel
Who does AI mention more?
UpToDate, mentioned in 4 of 5 answers, Isabel in 0
Who does AI recommend more?
UpToDate, the only one of the two named
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Top clinical decision support platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, UpToDate was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Isabel 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.
- UpToDate1st
DynaMed2nd
VisualDx3rd
OpenEvidence4th
BMJ Best Practice5th
Wolters Kluwer6th
Elsevier–
Isabel–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- UpToDate4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Wolters Kluwer3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- DynaMed3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- OpenEvidence2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- VisualDx2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Elsevier1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- BMJ Best Practice1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Isabel0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about clinical decision support platforms
5 answers
Asked ChatGPT
“Which clinical decision support platform should I use?”
Asked ChatGPT
“What are the best clinical decision support platforms?”
Asked ChatGPT
“What's the best clinical decision support platform for evidence based care?”
Searched Google, AI Overview
“clinical decision support software”
Searched Google, AI Overview
“clinical decision support platforms”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is Isabel or UpToDate more popular in search?
This chart shows how often people search Google for Isabel and UpToDate by name. Each line represents a brand's share of searches for all eight clinical decision support platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for UpToDate, Isabel. The figures are in the table below the chart.
View monthly share of searches table
| Month | OpenEvidence | UpToDate | Elsevier | Isabel | Wolters Kluwer | DynaMed | BMJ Best Practice | VisualDx |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 38.8% | 38.8% | 11.7% | 4.3% | 4.3% | 1.1% | 0.58% | 0.39% |
| Nov 2025 | 34% | 41.5% | 12.5% | 5.6% | 4.6% | 0.92% | 0.5% | 0.41% |
| Dec 2025 | 37.8% | 37.8% | 11.4% | 6.2% | 5.1% | 0.84% | 0.56% | 0.37% |
| Jan 2026 | 39.1% | 39.1% | 9.6% | 5.3% | 5.3% | 0.87% | 0.47% | 0.32% |
| Feb 2026 | 42% | 34.4% | 10.4% | 4.6% | 6.9% | 0.76% | 0.62% | 0.34% |
| Mar 2026 | 43.3% | 35.3% | 10.6% | 3.9% | 4.8% | 0.78% | 0.96% | 0.35% |
| Apr 2026 | 48.8% | 32.5% | 9.8% | 3.6% | 3.6% | 0.72% | 0.59% | 0.32% |
| May 2026 | 47.6% | 31.7% | 9.6% | 5.2% | 4.3% | 0.7% | 0.57% | 0.31% |
| Jun 2026 | 49.1% | 32.7% | 8% | 4.4% | 4.4% | 0.59% | 0.4% | 0.32% |
| Jul 2026 | 53.5% | 29.3% | 7.2% | 4.8% | 3.9% | 0.53% | 0.35% | 0.35% |
| Aug 2026 | 52.6% | 28.8% | 8.7% | 4.7% | 3.9% | 0.64% | 0.35% | 0.35% |
| Sep 2026 | 51.5% | 28.2% | 10.4% | 4.6% | 3.8% | 0.63% | 0.51% | 0.34% |
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 12 months ending September 2026.
- Across the 12 months ending September 2026, Isabel’s share of searches among clinical decision support platforms worldwide moved from 4.3% to 4.6%, and its estimated monthly branded searches moved from 135K to 165K.
- Across the 12 months ending September 2026, UpToDate’s share of searches among clinical decision support platforms worldwide moved from 38.8% to 28.2%, and its estimated monthly branded searches moved from 1.2M to 1M.
How did search popularity change for clinical decision support platforms worldwide in September 2026?
2 changes
In September 2026, UpToDate lost share of searches among clinical decision support platforms worldwide, from 28.8% to 28.2%.
Estimated monthly branded searches for Isabel worldwide rose 22.2% over 12 measured months, from 135K to 165K in September 2026.
How are branded searches counted?
2 search terms
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.
Other head-to-heads among clinical decision support platforms
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