TestWell vs Function Health
160+ lab tests, twice a year, for a flat annual membership. An honest side-by-side comparison covering price, lab partners, test selection, and turnaround.
Pricing data verified September 5, 2026.
The verdict
Pick Function Health if you'll definitely test twice a year and want a fixed annual price ($365/yr). Pick TestWell if you want to pay only for the tests you actually need — typically 50-90% less for occasional testing.
How do TestWell and Function Health compare?
What you actually get when you order from each.
| TestWell | Function Health | |
|---|---|---|
| Pricing model | A la carte + bundled panels | Subscription ($365/yr) |
| Per-order fees | $6 lab processing fee — the only fee | None disclosed |
| Lab partner(s) | Quest Diagnostics, Labcorp, BioReference (NY/NJ) | Quest Diagnostics |
| States served | 49 (not Rhode Island) | 49 |
| Sample type | Blood draw at Quest, Labcorp or BioReference | 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+ | 160 |
How do prices compare on common tests?
TestWell prices pulled live from our catalog. Function Health prices verified 2026-09-05.
| Test | TestWell | Function Health | You save |
|---|---|---|---|
| Lipid PanelFull Lipid Panel price comparison →Bundled in the $365 annual membership (160+ tests, two draws) | $24.99 | $365.00 | 93% less |
| TSH (thyroid)Full TSH (thyroid) price comparison →Bundled in the $365 annual membership | $26.99 | $365.00 | 93% less |
| Testosterone, TotalFull Testosterone, Total price comparison →Bundled in the $365 annual membership | $33.99 | $365.00 | 91% less |
| Hemoglobin A1cFull Hemoglobin A1c price comparison →Bundled in the $365 annual membership | $21.99 | $365.00 | 94% less |
| Comprehensive panel (TestWell: 49 tests; Function: 160+ tests)Function is an annual membership with two draws; TestWell Total Body is one-time | $499.99 | $365.00 | Function Health 37% less |
Prices exclude TestWell's $6 lab processing fee; Function Health lists no separate per-order fee. Competitor pricing pulled from public ordering pages on 2026-09-05; subject to change.
Where does TestWell win?
- •Pay only for what you need — no $365 annual membership; most people who need one answer spend under $50
- •Same-day physician authorization and a same-day walk-in draw
- •Order any single test or condition-specific panel without joining anything
- •Choice of Quest OR Labcorp at checkout, plus New York and New Jersey via BioReference
- •60+ pre-built panels for specific goals (heart, fertility, GLP-1 monitoring, TRT) sized for follow-up testing
Where does Function Health win?
- •At $365 for 160+ tests drawn twice a year, the per-marker price is far below any à-la-carte option — if you will actually use both draws
- •Clinician review with written insights on every result — TestWell's physician review authorizes the order, it isn't a consult
- •Strong brand around longevity and whole-body testing; MRI/CT and Galleri add-ons
- •Built-in 6-month re-test cadence keeps members on track
We’d rather be honest about where they have an edge — pick the tool that matches your situation.
When is TestWell not the right choice?
Every service here has real limits, including ours. Skip TestWell — and consider Function Health or another option — if any of these apply to you.
- You want a clinician consult included. A licensed physician authorizes every TestWell order, but that review is not a visit — there is no call to walk through results unless you bring them to your own provider.
- You can't get to a draw site. TestWell is venous-draw only at Quest, Labcorp and BioReference locations; we don't ship at-home finger-prick kits.
- You live in Rhode Island — we can't serve it yet. New York and New Jersey orders route to BioReference locations only, which means fewer draw sites than Quest or Labcorp offer elsewhere.
- You need insurance billed. TestWell is cash-pay; HSA/FSA cards work and every order gets an itemized receipt, but we don't file claims.
- You need a specialty assay outside our catalog (~150 tests and 60+ panels). The big marketplaces list 1,000–2,000 SKUs; we deliberately don't.
Competitor facts on this page were checked on 2026-09-05; we re-verify quarterly and update the date when we do.
Frequently asked questions
Ready to order your tests?
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 2026-09-05:
We re-verify quarterly. Spot a stale claim? Email support@test-well.comand we’ll fix it.