Is the AI symptom checker market growing or shrinking?
Miles FosterOwner and tester, RankDude
The answer▼ Shrinkingbut visits without Mayo Clinic Symptom Checker are up 316% on a year ago
- Visits, year on year, without Mayo Clinic Symptom Checker
- +316%
- Visits, last six months
- -11%
- Name searches vs October 2025
- -31%
Every month I add up the Google visits to the 5 AI symptom checker sites I track (DataForSEO estimates) and how often people in the US search for them by name (Google Ads). In October 2026 they got about 89 million visits. Much of the year’s change is one site, Mayo Clinic Symptom Checker; without it, visits are up 316% on a year ago.
The total hides very different stories: one site grew 1841% in a year while another lost 34% of its visits. See who grew and who shrank, the visits month by month and the name searches, plus what I expect for November 2026.
AI symptom checker market demand: key numbers, October 2026
Four numbers for October 2026. Visits mean visits from Google search to the 5 tracked sites. Tap one for the detail below.
- Visits from Google89Mvisits+6% vs a year ago
- Name searches, US3.3Ksearches-31% vs October 2025
- Expected in November87Mvisitslikely 79M to 95M
- The AI symptom checker market is shrinking as of October 2026, but visits without Mayo Clinic Symptom Checker are up 316% on a year ago.
- The 5 AI symptom checker sites RankDude tracks got 88,999,817 visits from Google search in October 2026, 6% more visits than in October 2025, or 316% more without Mayo Clinic Symptom Checker.
- People in the US searched Google for these sites by name 3,310 times in September 2026, 31% fewer searches than in October 2025.
- Fastest-growing AI symptom checker site over the year: Ubie, +1841% (156K to 3.0M visits a month).
- Steepest fall over the year: Ada, -34% (627K to 415K visits a month).
- Forecast for November 2026: about 87M visits, likely between 79M and 95M.
Source: DataForSEO visit estimates and Google Ads search data, published 2 November 2026 by RankDude.
1.Are more people visiting AI symptom checker sites than a year ago?
Up 6% on a year ago; about level with September 2026 (+3%)
Yes. The 5 tracked AI symptom checker sites got 88,999,817 visits from Google search in October 2026. That is 6% more visits than in October 2025, or 316% more without Mayo Clinic Symptom Checker, and about the same as in September 2026.
The highest month of the last two years was January 2025, with 110,744,854 visits; October 2026 is 20% below it. In the US, visits were 29,011,624, up 10% on a year ago.
WorldVisits a month to AI symptom checker sites, worldwide, two years
Source: DataForSEO, Google search visits, all tracked sites.
Worldwide, this month
89M
+6.3% on a year ago
United States, this month
29M
+9.6% on a year ago
Two-year high
111M
January 2025
US share of visits
32.6%
of worldwide visits
Miles explains
More visits than a year ago means new people are still finding AI symptom checker sites through Google. Most of that growth is one site, Mayo Clinic Symptom Checker; without it, visits are up 316% on a year ago.
2.Are people searching for AI symptom checker sites by name?
Down 31% on October 2025; 3.3K name searches a month in the US
Fewer than before. People in the US searched Google for the names of the counted AI symptom checker sites 3,310 times in September 2026, 31% fewer searches than in October 2025. Someone who searches a site’s name already knows it, so this is the clearest sign of people coming back on purpose. The term “ai symptom checker” itself gets about 1,600 US searches a month (Google Ads, 12-month average).
USName searches a month for AI symptom checker sites, US
Source: Google Ads via DataForSEO, to September 2026.
USMost searched AI symptom checker sites by name, searches a month
Ada1.0K a month
Ubie1.0K a month
Isabel Symptom Checker720 a month
Symptomate590 a month
Miles explains
Name searches are down, so fewer people are coming back on purpose. Better Google rankings will not fix that.
3.Which AI symptom checker sites grew, and which shrank?
Fastest grower over the year: Ubie, from 155,673 to 3,021,609 visits (+1841%). Steepest fall: Ada, from 627,001 to 415,016 visits (-34%).
Growing fastest, year on year
- Ubie3.0M visits+1841%
Mayo Clinic Symptom Checker86M visits+3%
Falling fastest, year on year
- Ada415K visits-34%
- Symptomate24.0K visits-27%
- Isabel Symptom Checker20.9K visits-1%
Source: DataForSEO. Sites with 5,000+ visits a year ago.