How popular isFunction Health?
In October 2026, people searched for Function Health by name about 201,000 times worldwide, about the same as the previous year. These searches made up 55% of all global online blood testing service searches, placing Function Health first out of 12 services. When we asked both ChatGPT and Google AI Overviews about online blood testing services, Function Health appeared in two of the five answers and was the joint second most recommended of the 12.
Function Health is the most searched of 12 competitors and the joint second most recommended in the AI answers we collected.
Function HealthShare of searches 55%Mentioned in 2 of 5 AI answersPlace in AI recommendations 2nd
EverlywellShare of searches 13.6%Mentioned in 1 of 5 AI answersPlace in AI recommendations 7th
MedichecksShare of searches 9.1%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
LabcorpShare of searches 6.1%Mentioned in 4 of 5 AI answersPlace in AI recommendations 1st
Marek HealthShare of searches 2.7%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
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Top online blood testing services in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Function Health was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Function Health is the joint second most recommended of the 12.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Labcorp4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Function Health2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Quest Diagnostics2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Everlywell1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
LetsGetChecked1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Ulta Lab Tests1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
SiPhox Health1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Superpower1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers- Medichecks0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Marek Health0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about online blood testing services
5 answers
Asked ChatGPT
“Which online blood test service should I use?”
Asked ChatGPT
“What are the best services for ordering your own blood tests?”
Asked ChatGPT
“What's the best at-home blood test for checking my overall health?”
Searched Google, AI Overview
“at home blood test”
Searched Google, AI Overview
“order blood test online”
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 25, 2026.
How often do people search for Function Health compared with other online blood testing services worldwide?
Share of searches by month for Function Health, Everlywell, Medichecks, Labcorp, Marek Health, Quest Diagnostics, LetsGetChecked, Thriva, Ulta Lab Tests. The figures are in the table below the chart.
View monthly share of searches table
| Month | Function Health | Everlywell | Medichecks | Labcorp | Marek Health | Quest Diagnostics | LetsGetChecked | Thriva | Ulta Lab Tests | SiPhox Health | InsideTracker | Superpower |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 2025 | 53.1% | 10.7% | 10.7% | 7.2% | 3.9% | 2.1% | 2.6% | 3.9% | 1.4% | 0.5% | 2.6% | 1.2% |
| Dec 2025 | 52.8% | 10.6% | 8.7% | 10.6% | 3.9% | 2.1% | 2.1% | 3.2% | 1.7% | 0.5% | 2.6% | 1.2% |
| Jan 2026 | 46.7% | 9.4% | 11.5% | 14.1% | 3.4% | 2.3% | 2.3% | 4.2% | 2.3% | 0.67% | 1.9% | 1.3% |
| Feb 2026 | 54.2% | 8.9% | 10.9% | 7.3% | 4% | 2.2% | 2.2% | 4% | 2.7% | 0.65% | 1.8% | 1.2% |
| Mar 2026 | 56.2% | 9.2% | 9.2% | 7.6% | 3.4% | 2.3% | 1.8% | 4.1% | 2.3% | 0.82% | 1.8% | 1.2% |
| Apr 2026 | 51.6% | 10.4% | 10.4% | 8.5% | 3.8% | 2.5% | 2.1% | 3.8% | 2.5% | 0.92% | 2.1% | 1.4% |
| May 2026 | 54% | 8.9% | 10.9% | 7.3% | 4% | 2.7% | 2.2% | 4% | 2.2% | 0.78% | 1.8% | 1.5% |
| Jun 2026 | 54.2% | 8.9% | 10.9% | 6% | 4% | 2.7% | 2.2% | 4% | 2.7% | 0.97% | 1.8% | 1.8% |
| Jul 2026 | 54.8% | 9% | 11.1% | 6.1% | 4% | 2.7% | 2.2% | 3.3% | 2.7% | 0.79% | 1.5% | 1.8% |
| Aug 2026 | 52% | 8.6% | 10.5% | 10.5% | 3.8% | 3.1% | 2.1% | 3.1% | 2.1% | 1.1% | 1.4% | 1.7% |
| Sep 2026 | 49.4% | 12.1% | 12.1% | 6.6% | 3.6% | 3% | 3% | 3% | 2.4% | 1.6% | 1.6% | 1.6% |
| Oct 2026 | 55% | 13.6% | 9.1% | 6.1% | 2.7% | 2.7% | 2.2% | 2.2% | 2.2% | 1.8% | 1.2% | 1.2% |
| Rank | Brand | Share of searches | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 55% | 201K | +21.8% | +5.7 points | |
| 2, held 2nd | 13.6% | 49.5K | +22.2% | +1.4 points | |
| 3, held 3rd | 9.1% | 33.1K | -18.3% | -3.1 points | |
| 4, held 4th | 6.1% | 22.2K | 0% | -0.6 points | |
| 5, held 5th | 2.7% | 9.9K | -18.2% | -0.9 points | |
| 6, moved from 7th to 6th | 2.7% | 9.9K | 0% | -0.3 pointsmoved from 7th to 6th | |
| 7, moved from 6th to 7th | 2.2% | 8.1K | -18.2% | -0.7 pointsmoved from 6th to 7th | |
| 8, held 8th | 2.2% | 8.1K | -18.2% | -0.7 points | |
| 9, held 9th | 2.2% | 8.1K | 0% | -0.2 points | |
| 10, moved from 11th to 10th | 1.8% | 6.6K | +22.2% | +0.2 pointsmoved from 11th to 10th | |
| 11, moved from 10th to 11th | 1.2% | 4.4K | -18.5% | -0.4 pointsmoved from 10th to 11th | |
| 12, held 12th | 1.2% | 4.4K | -18.5% | -0.4 points |
55%
Held 1st. 201K estimated branded searches, +21.8% vs prior month. Share +5.7 points.
13.6%
Held 2nd. 49.5K estimated branded searches, +22.2% vs prior month. Share +1.4 points.
9.1%
Held 3rd. 33.1K estimated branded searches, -18.3% vs prior month. Share -3.1 points.
4.
Labcorp6.1%
Held 4th. 22.2K estimated branded searches, 0% vs prior month. Share -0.6 points.
2.7%
Held 5th. 9.9K estimated branded searches, -18.2% vs prior month. Share -0.9 points.
2.7%
Moved from 7th to 6th. 9.9K estimated branded searches, 0% vs prior month. Share -0.3 points.
2.2%
Moved from 6th to 7th. 8.1K estimated branded searches, -18.2% vs prior month. Share -0.7 points.
8.
Thriva2.2%
Held 8th. 8.1K estimated branded searches, -18.2% vs prior month. Share -0.7 points.
2.2%
Held 9th. 8.1K estimated branded searches, 0% vs prior month. Share -0.2 points.
1.8%
Moved from 11th to 10th. 6.6K estimated branded searches, +22.2% vs prior month. Share +0.2 points.
1.2%
Moved from 10th to 11th. 4.4K estimated branded searches, -18.5% vs prior month. Share -0.4 points.
12.
Superpower1.2%
Held 12th. 4.4K estimated branded searches, -18.5% vs prior month. Share -0.4 points.
Compare popularity between Function Health and its closest rivals
Every comparison with Function Health
11 comparisons
- Everlywell vs Function Health
- Function Health vs Medichecks
- Function Health vs Labcorp
- Function Health vs Marek Health
- Function Health vs Quest Diagnostics
- Function Health vs LetsGetChecked
- Function Health vs Thriva
- Function Health vs Ulta Lab Tests
- Function Health vs SiPhox Health
- Function Health vs InsideTracker
- Function Health vs Superpower
How has branded search demand for Function Health changed worldwide over the last 12 months?
3 findings
- Across the 12 months ending October 2026, estimated monthly branded searches for Function Health worldwide held steady at 201K.
- Across the 12 months ending October 2026, Function Health’s share of searches among online blood testing services worldwide increased from 53.1% to 55%.
- Across the 12 months ending October 2026, Function Health’s share of searches among online blood testing services worldwide peaked at 56.2% in March 2026 and was lowest at 46.7% in January 2026.
How did search popularity change for online blood testing services worldwide in October 2026?
6 changes
In October 2026, Function Health gained share of searches among online blood testing services worldwide, from 49.4% to 55%.
In October 2026, Everlywell gained share of searches among online blood testing services worldwide, from 12.1% to 13.6%.
In October 2026, Medichecks lost share of searches among online blood testing services worldwide, from 12.1% to 9.1%.
In October 2026, Marek Health lost share of searches among online blood testing services worldwide, from 3.6% to 2.7%.
In October 2026, LetsGetChecked lost share of searches among online blood testing services worldwide, from 3% to 2.2%.
In October 2026, Thriva lost share of searches among online blood testing services worldwide, from 3% to 2.2%.
How are Function Health’s branded searches counted?
1 search term
Brandwave collects information about searches that people make online using Function Health’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.
- function health
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