TestWell vs Function Health
100+ biomarker subscription with annual physician review. An honest side-by-side comparison covering price, lab partners, test selection, and turnaround.
Pricing data verified April 24, 2026.
The verdict
Pick Function Health if you'll definitely test twice a year and want a fixed annual price ($499/yr). Pick TestWell if you want to pay only for the tests you actually need — typically 50-90% less for occasional testing.
Side-by-side comparison
What you actually get when you order from each.
| TestWell | Function Health | |
|---|---|---|
| Pricing model | A la carte + bundled panels | Subscription ($499/yr) |
| Lab partner(s) | Quest Diagnostics, Labcorp | Quest Diagnostics |
| States served | 49 (excludes NY) | 49 (excludes NY) |
| Sample type | Blood draw at any Quest or Labcorp | Blood draw |
| Results turnaround | 1-3 business days | 5-10 business days |
| Doctor visit required | No | No |
| HSA/FSA accepted | Yes | Yes |
| Bills insuranceBoth companies are cash-pay only | No | No |
| Panel count | 60+ | 1 |
| Individual tests | 100+ | 100 |
Price comparison on common tests
TestWell prices pulled live from our catalog. Function Health prices verified 2026-04-24.
| Test | TestWell | Function Health | You save |
|---|---|---|---|
| Lipid PanelBundled in $499 annual subscription | $24.99 | $499.00 | 95% less |
| TSH (thyroid)Bundled in $499 annual subscription | $26.99 | $499.00 | 95% less |
| Testosterone, TotalBundled in $499 annual subscription | $33.99 | $499.00 | 93% less |
| Hemoglobin A1cBundled in $499 annual subscription | $21.99 | $499.00 | 96% less |
| Comprehensive panel (~100 markers)Annual; TestWell Total Body is one-time | $499.99 | $499.00 | — |
Prices exclude TestWell's $6 lab processing fee. Competitor pricing pulled from public ordering pages on 2026-04-24; subject to change.
Where TestWell wins
- •Pay only for what you need — no $499 minimum
- •Same-day approval and same-day lab visit (Function ships kits on a delay)
- •Order any single test or condition-specific panel without subscribing
- •Total Body Panel ($499.99) covers similar ground as one Function visit, with no annual lock-in
- •60+ pre-built panels for specific goals (heart, fertility, GLP-1 monitoring, etc.)
Where Function Health wins
- •Single fixed annual price simplifies budgeting if you'll definitely test twice a year
- •Physician video consult included — TestWell's review is automated approval, not a consult
- •Strong brand around longevity and biohacker positioning
- •Built-in 6-month re-test cadence keeps users on track
We’d rather be honest about where they have an edge — pick the tool that matches your situation.
Frequently asked questions
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Browse our full catalog of 100+ individual tests and 60+ panels. Same-day approval, results in 1-3 business days, no insurance needed.
Sources
Competitor pricing and feature data verified against public ordering pages on 2026-04-24:
We re-verify quarterly. Spot a stale claim? Email support@test-well.comand we’ll fix it.