Function Health vs Lifeforce
Function Health is cheaper to start ($365 vs $599 per year, lowest published plans). Function Health scores higher overall (9.0 vs 7.5).
By Julian Caraulani · prices checked
Quick verdict
Our pick between the two: Function Health
Function Health scores 9.0/10 against 7.5 for Lifeforce, ahead on price, clinical care, access and reputation. Lifeforce can still be the better fit: it is best for people who want regular clinician consults with their testing and accept a higher price.
Side by side
| Function Health | Lifeforce | |
|---|---|---|
| Lowest price | $365/yr (yearly membership, auto-renews) | $599/yr (one-time yearly fee) |
| Our score | 9.0/10 | 7.5/10 |
| Treatments | Longevity memberships | Longevity memberships |
| Medication in price | Not stated | Not stated |
| Drugs dispensed | Not stated | Not stated |
| Labs | Not stated | Not stated |
| Membership | Not stated | Not stated |
| Insurance | No; self-pay | No; self-pay |
| States | 48 states (not RI, HI), per its own site (2026-10-31) | Not confirmed: no state list found on its own site (2026-10-31) |
| Cancellation | Cancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price. | Monthly plan cancel anytime. Membership fees refundable only within 30 days of purchase or 15 days after first diagnostic order (whichever first) and only if no services used; partial refunds discretionary. |
| FDA warning letters | None found (October 31, 2026) | None found (October 31, 2026) |
| Trustpilot | 4.5/5 (3,102 reviews) | 4.2/5 (213 reviews) |
| Best for | People who want the widest yearly panel, retested twice, in one membership. | People who want regular clinician consults with their testing and accept a higher price. |
| Prices checked | 2026-10-31 | 2026-10-31 |
Price by treatment
The lowest all-in plan each publishes for the treatments both offer, with the page we read it on.
| Treatment | Function Health | Lifeforce |
|---|---|---|
| Longevity memberships | $365/yr (yearly membership, auto-renews) source, 2026-10-31 | $599/yr (one-time yearly fee) source, 2026-10-31 |
Function Health: a closer look
Yearly membership: 100+ markers at Quest, a mid-year retest and a clinician summary. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Function Health.
In its favour
- Measures ApoB, Lp(a), fasting insulin, omega-3 and heavy metals in the base price
- Two draws a year included
- Clinicians review every result
To weigh
- No refunds for prior payments, and membership auto-renews at the then-current price.
- '160+ lab tests' counts the mid-year retest; the annual draw is 100+.
- NY/NJ residents can be billed lab fees on top of the membership, amount not disclosed upfront.
- Not available in Rhode Island, Hawaii or Puerto Rico.
Lifeforce: a closer look
Clinician-led membership with at-home draws, 45-minute consults and add-on treatments. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Lifeforce.
In its favour
- At-home phlebotomist included
- 45-minute clinician consults included
- HSA and FSA eligible
To weigh
- Much higher all-in cost than test-only memberships: about $1,838 in year one on the monthly plan.
- Prices differ across Lifeforce landers ($149 vs $199 first payment; diagnostic $599 vs earlier $349).
- Narrow refund window and none once services are used.
- Sells supplements and prescriptions; supplement claims not FDA-evaluated.
Which should you choose?
Choose Function Health
Best for people who want the widest yearly panel, retested twice, in one membership. Its lowest all-in plan is $365/yr (yearly membership, auto-renews).
Check Function Health's priceChoose Lifeforce
Best for people who want regular clinician consults with their testing and accept a higher price. Its lowest all-in plan is $599/yr (one-time yearly fee).
Check Lifeforce's priceFunction Health vs Lifeforce: questions people ask
Is Function Health or Lifeforce cheaper?
Function Health starts lower at $365 per year versus $599 at Lifeforce, comparing each program's lowest all-in plan.
Which is better, Function Health or Lifeforce?
On our published score Function Health rates 9.0 and Lifeforce rates 7.5. Function Health is best for people who want the widest yearly panel, retested twice, in one membership; Lifeforce is best for people who want regular clinician consults with their testing and accept a higher price.
Do Function Health and Lifeforce offer the same treatments?
Function Health: Longevity memberships. Lifeforce: Longevity memberships.
Does either include the medication in the price?
Function Health: not stated. Lifeforce: not stated.
Blood Test Watchdog compares testing services. It is not medical advice, does not interpret results and does not publish reference ranges as advice. Talk to a licensed clinician about which tests you need and what your results mean. Partner links may earn us a commission; our score never depends on it. Compare other programs.