ByoMap vs Function Health: An Honest Comparison
Competitor facts checked against public sources in September 2026. Hedged where a claim could not be verified.
ByoMap and Function Health both help you make sense of blood work, but they start from opposite ends of the problem. Function Health is a testing membership: it orders your labs, arranges the draw at Quest locations, and includes clinician review for $365 a year. ByoMap is a tracking app: you bring reports you already have — from any doctor, lab, or prior testing service — and ByoMap parses, trends, and explains them.
Neither approach is universally better. They solve different problems for different people, and for some people they complement each other. This comparison lays out the differences plainly, including the places where Function Health is the stronger product. All competitor details were checked against Function Health's public pages in September 2026.
Function Health at a glance
- Price
- $365/year, billed annually (as of Sep 2026)
- Price notes
- Reduced from $499 in November 2025. Imaging and extended panels (MRI, CT, Galleri) are member-priced add-ons, not included.
- Testing model
- Two included testing rounds per membership year: 100+ tests at the start, 60+ tests 3–6 months later. The combined figure is marketed as "160+ lab tests annually" and partly repeats markers.
- Marker coverage
- 100+ tests (first round) + 60+ tests (mid-year round), clinician-reviewed
- Availability
- 2,000+ Quest locations in 48 US states, per Function's FAQ (Rhode Island, Hawaiʻi, and Puerto Rico excluded). Concierge home draws available at extra cost in select areas.
- Uploading existing results
- Members can upload past results, per Function's FAQ. Accepted formats, supported labs, and marker limits are not stated publicly.
- Data export
- Completed results can be downloaded as a PDF. CSV, JSON, or API export was not documented in public sources we checked as of Sep 2026 — which doesn't mean it's unavailable.
ByoMap vs Function Health: side by side
| ByoMap | Function Health | |
|---|---|---|
| Core model | Bring-your-own-labs tracking app for reports you already have. | Annual lab-testing membership with included draws and clinician review. |
| Annual cost | Free during beta. | $365/year (as of Sep 2026); add-on imaging and extended panels cost extra. |
| Who orders the test | You do — through your doctor, a local lab, or any testing service. | Function does, as part of the membership. |
| Where you get drawn | Wherever you normally get blood work done. | 2,000+ Quest locations in 48 US states, or a paid concierge draw in select areas. |
| Biomarkers analysed | 200+ markers parsed from your uploaded reports, each trended over time. | 100+ tests in the initial round and 60+ at mid-year, on Function's panel. |
| Ranges and context | Optimal ranges tuned to your age, sex, and ancestry, with educational explanations for every marker. | Clinician review against your health history, with a summary and action items. |
| Medical oversight | None — ByoMap is educational and does not provide medical advice or diagnosis. | Clinician review included; on-demand tests and add-on imaging available. |
| Availability | Global — anywhere you can obtain a blood report. | 48 US states per Function's FAQ; no international service documented. |
| Historical data | Built for it: upload years of past reports and unify every marker on one timeline. | Past-result upload offered; formats and limits not published publicly. |
Core model
Bring-your-own-labs tracking app for reports you already have.
Annual lab-testing membership with included draws and clinician review.
Annual cost
Free during beta.
$365/year (as of Sep 2026); add-on imaging and extended panels cost extra.
Who orders the test
You do — through your doctor, a local lab, or any testing service.
Function does, as part of the membership.
Where you get drawn
Wherever you normally get blood work done.
2,000+ Quest locations in 48 US states, or a paid concierge draw in select areas.
Biomarkers analysed
200+ markers parsed from your uploaded reports, each trended over time.
100+ tests in the initial round and 60+ at mid-year, on Function's panel.
Ranges and context
Optimal ranges tuned to your age, sex, and ancestry, with educational explanations for every marker.
Clinician review against your health history, with a summary and action items.
Medical oversight
None — ByoMap is educational and does not provide medical advice or diagnosis.
Clinician review included; on-demand tests and add-on imaging available.
Availability
Global — anywhere you can obtain a blood report.
48 US states per Function's FAQ; no international service documented.
Historical data
Built for it: upload years of past reports and unify every marker on one timeline.
Past-result upload offered; formats and limits not published publicly.
Where Function Health wins — and where ByoMap wins
Where Function Health wins
- End-to-end care delivery: Function orders the labs, books the draw, and clinicians review your results. ByoMap offers none of that clinical layer.
- A consistent, standardised panel across the year — 100+ tests initially, 60+ at mid-year — reduces lab-to-lab variation.
- Access to add-on diagnostics (MRI, CT, multi-cancer screening) from one account.
- A lab visit takes about 15 minutes, and first results start arriving within 48 hours, per Function's FAQ.
Where ByoMap wins
- Cost: free during beta versus $365/year — meaningful if you already have results in hand.
- No lock-in to one lab network or panel schedule; every provider's report lands on the same timeline.
- Works globally, not just in 48 US states.
- 200+ biomarkers tracked across every upload, with ancestry-aware optimal ranges.
What ByoMap doesn't do
- ByoMap cannot order a blood test. If you don't already have results, you need a draw arranged elsewhere first.
- No clinician review, prescriptions, or imaging — ByoMap is not a medical service.
- Interpretations are educational; abnormal results should always be discussed with a physician.
Which one is right for you?
Choose Function Health if…
- You want a large panel ordered, drawn, and clinician-reviewed without involving your own doctor
- You live in a supported US state and value the Quest network
- You want imaging add-ons like MRI in the same membership
- You prefer a guided protocol with action items from clinicians
Choose ByoMap if…
- You already have lab results — from your doctor, an employer screen, or a past membership — and want them explained
- You want a permanent, portable record that survives switching providers
- You live outside the US
- You want to track trends across years of mixed reports without an annual fee
Frequently asked questions
What's the main difference between ByoMap and Function Health?
Function Health sells testing: a $365/year membership that includes two blood draws at Quest locations and clinician review. ByoMap sells nothing to test you — it's a tracking app for reports you already have, and it's free during beta. If you need a test ordered, Function can do that and ByoMap can't. If you already hold reports, ByoMap understands and trends them without a membership.
Is Function Health worth $365 a year?
It depends on what you need. If you want a 100+ marker panel ordered, drawn, and clinician-reviewed in the US — plus a mid-year retest — $365/year is Function's current price (reduced from $499 in November 2025), and the bundle is the product. If you mainly want to understand results you already have, paying for new draws may be more than you need.
Can I use ByoMap with my Function Health results?
Yes. Function documents a PDF download of completed results, and ByoMap parses uploaded blood-report PDFs. Some members of testing services use ByoMap alongside them to keep a portable, long-term record that isn't tied to any single membership.
Does ByoMap include clinician review like Function Health?
No. ByoMap provides educational ranges and context — optimal ranges tuned to your age, sex, and ancestry — but it is not a medical service and does not diagnose. Function Health includes clinician review as part of its membership, and we think that's a genuine strength of their product.
Which is better if I live outside the US?
Function Health operates at Quest locations in 48 US states, per its FAQ, with no international service documented as of September 2026. ByoMap works with reports from labs anywhere, so outside the US a bring-your-own-labs app is the practical option.
What happens to my data if I cancel Function Health?
Function documents a PDF download of completed results, so you can keep copies. We could not verify CSV, JSON, or API export from public sources as of September 2026. Whatever service you use, uploading copies of your reports to ByoMap keeps your history in one place you control.
Keep every result, from every provider
Upload your existing blood reports to ByoMap and see 200+ biomarkers trended against optimal ranges. Free during beta.
Upload your existing report freeRelated comparisons
Disclaimer: ByoMap is a lab-report tracking app, not a medical service. Nothing on this page is medical advice or a diagnosis — discuss your results with a qualified physician. Competitor information reflects public pages accessed in September 2026 and may have changed since; check each provider's site for current pricing and terms.