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Independent·Affiliate-disclosed·Spec-verified·Updated August 2, 2026
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Head-to-head buyer guide

Function Health Function Membership vs InsideTracker Ultimate Plan

Specs, prices, editor verdict, and who should buy which - compared side-by-side.

By Ryan · Founder
Updated May 3, 2026
Quick verdict

Function Health Function Membership (premium, $365/yr) vs InsideTracker Ultimate Plan (mid, $199–$647/test) - different tools for different jobs (see the per-product details below).

Compared on 3 shared specs · cross-category comparison (ai software vs diagnostic).

Function Health membership - lab scans + biomarker visualization
Function Health

Function Membership

The platform that took the $5,000 executive physical and turned it into a $365/year membership - and made it better.

PRICE
$365/yr
InsideTracker biomarker dashboard
InsideTracker

Ultimate Plan

The OG of "blood test + AI advice" - InsideTracker was doing this 10 years before Function Health existed.

PRICE
$199–$647/test
View at InsideTracker
The verdict

These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.

Side-by-side specs

SpecFunction Health Function MembershipInsideTracker Ultimate Plan
price$365/yr$199–$647/test
biomarkers160+ lab tests48 (Ultimate)
frequency2x/yearSingle tests or annual
deliveryLab draw at Quest networkLab draw or home kit

Function Health Function Membership also publishes: clinicianReview, subscription

InsideTracker Ultimate Plan also publishes: dnaAddOn

Who should buy which

Pick the Function Health Function Membership if

Anyone running peptides, optimizing hormones, on a longevity protocol, or just wanting twice-yearly comprehensive labs at a fixed price.

Skip if

You already get comprehensive labs through your concierge clinic, or you only want the cheapest single-panel test (go InsideTracker).

Pick the InsideTracker Ultimate Plan if

Buyers who want test results paired with explicit "do X" recommendations rather than raw lab data they have to interpret.

Skip if

You want maximum biomarker coverage at the lowest annual cost - Function Health wins on that math.

Go deeper

FULL REVIEW
Read the Function Health Function Membership review →
FULL REVIEW
Read the InsideTracker Ultimate Plan review →

Frequently asked

Which is better, the Function Health Function Membership or the InsideTracker Ultimate Plan?

They are closely matched on our scoring, so the right pick comes down to your priorities. The verdict and spec table above compare them on price, features, and who each one suits.

How much do they cost?

Function Health Function Membership: $365. InsideTracker Ultimate Plan: $199 to $647. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

Function Health Function Membership: Anyone running peptides, optimizing hormones, on a longevity protocol, or just wanting twice-yearly comprehensive labs at a fixed price. InsideTracker Ultimate Plan: Buyers who want test results paired with explicit "do X" recommendations rather than raw lab data they have to interpret.

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