Function Health vs InsideTracker

Quick answer

On list price and test count, Function Health is ahead: two draws and 160+ tests for $365 ^{[1] [2]}. Two InsideTracker tests cost $761 ^[3]. InsideTracker fits people who mainly want nutrition and lifestyle suggestions tied to their markers ^[3], and those outside the US, who can buy a $149 upload-only membership ^[3].

Side by side

Function Health vs InsideTracker, checked Oct 17 2026

	Function Health	InsideTracker
First-year price	$365 [1]	$489 with 1 test; $761 with 2; $1,305 with 4 [3]
Markers per draw	160+ lab tests a year [2]	Up to 54 (Ultimate Blood Test) [3]
Draws	2 a year [2]	1, 2 or 4 depending on plan [3]
Retest price	Included twice a year; on-demand tests extra [2]	$340 per Ultimate test for members [3]
Platform fee	Included in membership	Annual platform fee included in new-customer prices [3]
Focus	Clinician review; imaging add-ons via Ezra [2]	Nutrition and lifestyle recommendations
International	Not recorded in our research	$149 upload-only membership [3]
State limits	$365 offer excludes NY and NJ [1]	None noted

InsideTracker cost in detail

InsideTracker prices for new customers include an annual platform fee. The listed bundles were $489 for one Ultimate Blood Test, $761 for two and $1,305 for four. Existing members could add an Ultimate test for $340 ^[3]. At four tests, the cost works out to about $326 per draw, still more per draw than Function Health's $182.50.

What the evidence says

Neither company sells a test that a US guideline body in our research recommends for healthy adults as a whole panel. The guidance in our research is narrower, such as the ACC/AHA cholesterol guideline's use of a coronary calcium score for adults 40 to 75 at intermediate risk ^[4]. For outcomes data, fitness has a large observational study: in 122,007 adults the fittest group had an adjusted hazard ratio for death of 0.20 versus the least fit, in an observational study ^[5]. See the VO2 max test page.

Who each fits

• Function Health: people who want the broadest US panel twice a year, and a route to MRI add-ons. Our Function Health review covers the details.
• InsideTracker: athletes and people who want diet and training suggestions, or who live outside the US.
• Superpower: lowest single-panel price; see Superpower vs Function Health.

The two services

1. FFunction Health

   Clean

   Price

   $365 a year ^[1]

   What you get

   160+ tests, two draws a year

   FDA record

   No FDA warning letter in our research files. Lab and imaging firms were not separately searched.

   BBB

   Not checked for this page

   Note

   Renews at then-current price.

   Visit Function Health

2. IInsideTracker

   Clean

   Price

   $489 to $1,305 ^[3]

   What you get

   Up to 54 biomarkers per test with lifestyle guidance

   FDA record

   No FDA warning letter in our research files. Lab and imaging firms were not separately searched.

   BBB

   Not checked for this page

   Note

   Includes annual platform fee.

   Visit InsideTracker

All memberships compared: longevity blood tests. Start here for programs: longevity clinic guide.