Function Health vs Superpower

By Elo. Last updated September 2, 2026.

Function Health and Superpower iPhone apps side by side: Function's biomarker count and ApoB trend on the left, Superpower's health score and cholesterol action plan on the right.

Function Health and Superpower are two leading biomarker testing memberships. Both advertise 100+ biomarkers, but they differ in price, panel breadth, and how they count biomarkers.

Function is $365 per year vs Superpower at $349, both include two draws, and both share 50 biomarkers. Function tests 64 that Superpower doesn't. Superpower tests 9 that Function doesn't.

I've personally tested Function Health and gone through its full results experience, and I reviewed Superpower's panel and membership in detail on their own website. The two look similar on the surface, so this page digs into where they actually diverge.

Below I compare the two side by side: pricing, the lab tests included, the two apps screen by screen, and an honest take on which is better for different goals.

Function vs Superpower comparison table

Feature	Function Health Annual Membership	Superpower Basic
Price	$365	$349
Number of Biomarkers	114	59
Features
iOS app	✓	✓
Web app	✓	✓
Android app	✓	—
Wearable integration	✓	✓
Testing Frequency	2×/year	2×/year
Prescriptions	—	✓
Access to clinicians	—	✓

Function vs Superpower lab tests included

Function and Superpower share 50 biomarkers: things like ApoB, HbA1c, hs-CRP, vitamin D, BUN, liver enzymes, and so on.

Function tests 64 that Superpower doesn't: omega-3 and omega-6 fatty acids, lipid particles, and heavy metals. If these matter to you, then you likely want to choose Function.

Superpower tests 9 biomarkers that Function doesn't, including fasting insulin, IGF-1, ESR, folate, and B12. IGF-1 in particular is useful for people on peptides. Superpower's optional add-ons do let you choose Lp(a) and the LDL particle measurements.

Overall, Function is stronger on baseline breadth. Superpower now looks stronger than before on general screening completeness, especially with urinalysis and iron studies.

Category	In both	Function only	Superpower only
Complete Blood Count	10 Basophils, Eosinophils, Hematocrit, Hemoglobin, Lymphocytes, Monocytes, Neutrophils, Platelet Count, Red Blood Cell Count, White Blood Cell Count	3 Mean Corpuscular Volume (MCV), Mean Platelet Volume (MPV), Red Cell Distribution Width (RDW)	—
Heart & Lipids	7 Apolipoprotein B, Cholesterol/HDL Ratio, HDL Cholesterol, LDL Cholesterol, Non-HDL Cholesterol, Total Cholesterol, Triglycerides	7 Large HDL Particles, LDL Particle Number, LDL Pattern, LDL Peak Size, Lipoprotein (a), Medium LDL Particles, Small LDL Particles	1 Atherogenic Index of Plasma
Metabolic & Diabetes	3 Glucose, Hemoglobin A1c, Uric Acid	1 Leptin	1 Fasting Insulin
Liver	8 Alanine Aminotransferase, Albumin, Albumin/Globulin Ratio, Alkaline Phosphatase, Aspartate Aminotransferase, Gamma-Glutamyl Transferase, Globulin, Total Bilirubin	—	2 Direct Bilirubin, Indirect Bilirubin
Kidney & Electrolytes	8 BUN (Blood Urea Nitrogen), BUN/Creatinine Ratio, Calcium, Carbon Dioxide (CO2), Creatinine, eGFR (Estimated Glomerular Filtration Rate), Potassium, Sodium	1 Chloride	—
Thyroid	3 Free T3 (Triiodothyronine), Free T4 (Thyroxine), Thyroid-Stimulating Hormone	1 Thyroglobulin Antibodies	1 Thyroid Peroxidase Antibodies
Hormones	7 DHEA-Sulfate, Estradiol (E2), Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH), Prolactin, Sex Hormone Binding Globulin (SHBG), Total Testosterone	3 Anti-Mullerian Hormone (AMH), Cortisol, Free Testosterone	1 IGF-1 (Insulin-like Growth Factor 1)
Inflammation & Autoimmune	1 High-Sensitivity C-Reactive Protein	4 Anti-Nuclear Antibodies Pattern, Anti-Nuclear Antibodies Titer, Antinuclear Antibodies (ANA), Rheumatoid Factor	1 ESR (Erythrocyte Sedimentation Rate)
Nutrients	2 Homocysteine, Vitamin D (25-Hydroxy)	8 Ferritin, Iron, Iron Saturation, Magnesium, Methylmalonic Acid, Selenium, Total Iron Binding Capacity, Zinc	2 Folate, Vitamin B12
Omega-3/6	—	9 Arachidonic Acid/EPA Ratio, Omega-3 DHA, Omega-3 DPA, Omega-3 EPA, Omega-3 Total, Omega-6 Arachidonic Acid, Omega-6 Linoleic Acid, Omega-6 Total, Omega-6/Omega-3 Ratio	—
Urinalysis	—	19 Urine Amorphous Sediment, Urine Appearance, Urine Bacteria, Urine Bilirubin, Urine Blood, Urine Calcium Oxalate Crystals, Urine Color, Urine Glucose, Urine Hyaline Casts, Urine Ketones, Urine Leukocyte Esterase, Urine Nitrite, Urine pH, Urine Protein, Urine Red Blood Cells, Urine Specific Gravity, Urine Squamous Epithelial Cells, Urine White Blood Cells, Urine Yeast	—
Cancer Screening	1 PSA Total	2 PSA Free, PSA Percent Free	—
Heavy Metals	—	2 Lead, Mercury	—
Other	—	4 ABO Blood Group, Amylase, Biological Age, Lipase	—
Total	50 shared	64 of 114	9 of 59

Where Function beats Superpower

Comprehensive biomarker coverage: Function Health includes 100+ real biomarkers in their standard panel without requiring add-ons
Two draws a year: Function retests you at six months, so you see whether a change you made actually moved a marker
Best value for comprehensive testing: At $365 for extensive coverage, it offers strong value for those who want the most complete picture of their health
iPhone and Android apps: Function ships on both, plus a web dashboard. Superpower is iPhone and web only

Where Superpower is stronger than Function

Slightly lower price: Superpower's core membership at $349 is still slightly cheaper than Function, although now more expensive than alternatives like Empirical or GoodLabs.
Sleek UI Superpower's interfce is very polished and attractive.
More specific advice: Superpower's AI will name a dose and a recheck window, where Function's tends to restate your numbers
Human clinician in the app: Superpower puts a care team behind a message button, with a stated reply time of under 24 hours on weekdays

Function vs Superpower pricing

Function Health is $365 per year. Superpower is $349 per year as of Sep 1. So honestly, panel breadth and follow-up quality more important than headline price. The separate Function Health value analysis compares the $365 membership with buying the same tests à la carte and through insurance.

Function vs Superpower app and results experience

Both Function and Superpower have an iPhone app and a web dashboard; Function also has Android. Function's iPhone app has a 4.9 average across about 23,800 ratings. Superpower's iPhone app launched in January 2026 and is at a 4.9 average across about 1,000 ratings. Superpower does not have an Android app as of September 2026.

The home screen: markers out of range vs a single score

Function Health iOS app home screen showing 148 biomarkers split into 125 in range, 16 out of range, and 7 other — Function opens on a count of what came back abnormal, which reads like a lab report you can actually parse. Superpower opens on a composite score, a biological age, and a 3D body model, with the individual markers a tap deeper. If you want to know which numbers are off, Function gets you there in zero taps. If you want a number to watch go up, Superpower is built for that. Screenshots from each company's App Store listing.

Superpower iOS app home screen showing a 3D body model, a superpower score of 82 out of 100, a biological age of 24, and cards for an action plan and test records — Function opens on a count of what came back abnormal, which reads like a lab report you can actually parse. Superpower opens on a composite score, a biological age, and a 3D body model, with the individual markers a tap deeper. If you want to know which numbers are off, Function gets you there in zero taps. If you want a number to watch go up, Superpower is built for that. Screenshots from each company's App Store listing.

Biomarker results: in range vs optimal

Function Health app ApoB detail screen showing 67 mg/dL in range, a range band at 90, and a trend line across four draws from May 2024 to December 2025 — The grading is the real difference. Function marks a result in range or out of range against a threshold, then explains what the marker does and why it matters. Superpower adds a third grade, Optimal, so a result can clear the lab's reference range and still be marked as merely acceptable. That extra tier is defensible for something like ApoB, where the lab range is looser than what cardiology guidelines target, and it's also the tier that creates something to sell you. Note that the values in Superpower's listing are placeholders (every row reads 30 uIU/mL), so read the layout, not the numbers.

Superpower app biomarker rows showing progesterone and LDL cholesterol marked Optimal and prolactin marked In range, each with a value, a sparkline, and a color band — The grading is the real difference. Function marks a result in range or out of range against a threshold, then explains what the marker does and why it matters. Superpower adds a third grade, Optimal, so a result can clear the lab's reference range and still be marked as merely acceptable. That extra tier is defensible for something like ApoB, where the lab range is looser than what cardiology guidelines target, and it's also the tier that creates something to sell you. Note that the values in Superpower's listing are placeholders (every row reads 30 uIU/mL), so read the layout, not the numbers.

Asking the Function/Superpower app a question

Function Health app AI chat answering how the latest results compare to last year, listing vitamin D improving from 28 to 42 ng/mL and a drop in ferritin and iron — Both chatbots are labeled beta. Function's answer is a well-organized restatement of your own numbers, which is the most common complaint about the service. Superpower's goes further: it ties afternoon fatigue to a ferritin of 18 ng/mL, notes that coffee near meals cuts iron absorption, gives a dose (45 to 65 mg elemental iron every other day, which matches the alternate-day dosing the evidence actually supports), and sets an 8 to 12 week recheck. That's more useful and more exposed at the same time, and it's why the "message your clinician, under 24h on weekdays" card underneath it matters.

Superpower app Concierge chat answering a question about afternoon fatigue by citing ferritin of 18 ng/mL, recommending 45 to 65 mg elemental iron every other day, and offering to message a clinician — Both chatbots are labeled beta. Function's answer is a well-organized restatement of your own numbers, which is the most common complaint about the service. Superpower's goes further: it ties afternoon fatigue to a ferritin of 18 ng/mL, notes that coffee near meals cuts iron absorption, gives a dose (45 to 65 mg elemental iron every other day, which matches the alternate-day dosing the evidence actually supports), and sets an 8 to 12 week recheck. That's more useful and more exposed at the same time, and it's why the "message your clinician, under 24h on weekdays" card underneath it matters.

Turning results into a plan

Function Health app Protocols screen showing a one-week nutrition plan with daily goals of 2000 kcal, 150g protein, 200g carbs, and 67g fat — Both turn your results into something to do. Superpower's version ends in a product with a plus button: goal 1 of 3 is "lower cholesterol," priority high, recovery time 8 weeks, and the recommendation is a bottle of Thorne Red Yeast Rice with CoQ10. Red yeast rice contains monacolin K, which is the same molecule as lovastatin, so this is a statin sold as a supplement at an unregulated dose. Function recommends red yeast rice too (it shows up in the action plan on its web dashboard below), but it doesn't sell it to you.

Superpower app action plan screen reading Goal 1 of 3, lower cholesterol to improve heart health, with a recovery time of 8 weeks and a recommended Thorne Red Yeast Rice with CoQ10 supplement card — Both turn your results into something to do. Superpower's version ends in a product with a plus button: goal 1 of 3 is "lower cholesterol," priority high, recovery time 8 weeks, and the recommendation is a bottle of Thorne Red Yeast Rice with CoQ10. Red yeast rice contains monacolin K, which is the same molecule as lovastatin, so this is a statin sold as a supplement at an unregulated dose. Function recommends red yeast rice too (it shows up in the action plan on its web dashboard below), but it doesn't sell it to you.

Superpower's marketplace

Superpower app Marketplace screen with tabs for tests, supplements, and prescriptions, listing a baseline blood panel at $179, gut microbiome test at $239, advanced blood panel at $359, and environmental toxins test at $370 — Function has an add-on test catalog. Superpower has a storefront with three tabs, tests, supplements, and prescriptions, and the tests alone run from $179 to $370. The $349 standard membership is the front door to it, though temporary promotions can lower that. This is the piece to weigh: the headline price gap versus Function is now small, and the app is designed to sell you the difference back.

Function and Superpower both have web dashboards

Function's web dashboard groups every marker by body system with a sparkline for each, and puts an action plan in the sidebar. Superpower has a web app too and it's genuinely well designed, though I don't have a comparable capture of a real results page to show here.

Function Health web dashboard listing biological age and biomarkers grouped by female health and heart, each with a status, value, and sparkline, next to an action plan sidebar recommending foods and supplements — Function's web view does more per screen than either mobile app: markers grouped by system, above range flagged in orange, four-draw sparklines, and an action plan naming foods (mackerel, sardines, herring, walnuts) and supplements (omega-3, red yeast rice) with no cart attached.

One more difference worth knowing: Function's "clinician report" is largely AI-written, and it mostly restates your numbers in tidy paragraphs. Superpower pushes further on recommendations, but some of that advice points at products it sells.

Function vs Superpower: which is better?

For most people who want comprehensive bloodwork, Function is still the better pick. The prices are nearly identical and it's a stronger baseline panel.

Alternatives to Function Health and Superpower

If you're evaluating Function and Superpower, I'd also consider Empirical Health ($190), GoodLabs (variable), and OwnYourLabs (variable).

Empirical Health: Most of the same 100+ biomarkers as Function or Superpower, but physician-led and about half the price.
Ulta Lab Tests: Pay-per-test model for those who want to select specific biomarkers, so that you can customize your panel.
OwnYourLabs: Budget-friendly option with customized testing, similar to Ulta.

For more detail on either service on its own, see the Function Health review and the Superpower review.

References

Function Health on the App Store (version 1.37, August 2026)
Superpower on the App Store (version 1.1.4, August 2026)