Function Health vs Everlywell
Function Health vs Everlywell: Function is cheaper, broader, and more frequent. It's $365 for 114 biomarkers drawn twice a year, versus Everlywell 360 at $399 for 86 markers once. On data per dollar Function wins, $3.20 per marker against $4.64. Everlywell's pitch is convenience and brand longevity: it's one of the longest-running at-home testing names, with a sample you collect at home rather than at a lab.
I've tested Function Health myself and reviewed Everlywell's current panel and kit model. To keep the counts honest I pulled each list and normalized the marker names, since the same test is often spelled several ways.
Below: pricing and cost per biomarker, the exact tests each includes and where they diverge, who founded each company, and the apps.
Function Health vs Everlywell: cost, testing and care
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Annual test totals can include repeat tests. Distinct marker counts below count each marker once. One-time panels and subscriptions cover different amounts of testing.
| Feature | Function Health Annual Membership | Everlywell Everlywell 360 |
|---|---|---|
| First year / purchase | $365 for the first year | $399 listed; confirm billing period |
| Renewal / repeat testing | $365/year currently; renews at the then-current price | Not verified; check renewal and repeat-test charges |
| Included draws | 2: initial panel + smaller follow-up | Once per year (83 biomarkers) |
| Extra costs | Add-on tests and imaging cost extra. NY/NJ lab fees may apply. | Not verified; check draw, membership and add-on fees |
| Clinician access | Clinician-reviewed results and notes; not ongoing medical care | Direct clinician access not listed |
| Advertised annual tests | 160+ tests including repeats, not 160 unique markers | Annual total not verified; see the distinct marker count below |
| Price source | Official pricingChecked 2026-10-06 | Verification pending |
| Distinct markers in our dataset | 119 | 86 |
| Features | ||
| iOS app | ✓ | ✓ |
| Web app | ✓ | ✓ |
| Android app | ✓ | — |
| Wearable integration | ✓ | — |
| Prescriptions | — | — |
Function Health vs Everlywell: biomarkers compared
Function Health's Annual Membership covers 119 biomarkers and Everlywell's Everlywell 360 covers 85. They share 84. 35 are unique to Function Health and 1 are unique to Everlywell.
Only in Function Health (35)
- ABO Blood Group
- Amylase
- Anti-Nuclear Antibodies Pattern
- Anti-Nuclear Antibodies Titer
- Apolipoprotein B
- Arachidonic Acid/EPA Ratio
- Biological Age
- Free Testosterone
- Large HDL Particles
- LDL Particle Number
- LDL Pattern
- LDL Peak Size
- Lead
- Leptin
- Lipase
- Medium LDL Particles
- Mercury
- Methylmalonic Acid
- 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
- Prolactin
- Rheumatoid Factor
- Sex Hormone Binding Globulin (SHBG)
- Small LDL Particles
- Urine Amorphous Sediment
- Urine Calcium Oxalate Crystals
- Urine Leukocyte Esterase
- Urine Microalbumin
- Urine Yeast
Only in Everlywell (1)
- Vitamin B12
Show the 84 biomarkers both include
- Alanine Aminotransferase
- Albumin
- Albumin/Globulin Ratio
- Alkaline Phosphatase
- Anti-Mullerian Hormone (AMH)
- Antinuclear Antibodies (ANA)
- Aspartate Aminotransferase
- Basophils
- BUN (Blood Urea Nitrogen)
- BUN/Creatinine Ratio
- Calcium
- Carbon Dioxide (CO2)
- Chloride
- Cholesterol/HDL Ratio
- Cortisol
- Creatinine
- DHEA-Sulfate
- eGFR (Estimated Glomerular Filtration Rate)
- Eosinophils
- Estradiol (E2)
- Fasting Insulin
- Ferritin
- Follicle Stimulating Hormone (FSH)
- Free T3 (Triiodothyronine)
- Free T4 (Thyroxine)
- Gamma-Glutamyl Transferase
- Globulin
- Glucose
- HDL Cholesterol
- Hematocrit
- Hemoglobin
- Hemoglobin A1c
- High-Sensitivity C-Reactive Protein
- Homocysteine
- Iron
- Iron Saturation
- LDL Cholesterol
- Lipoprotein (a)
- Luteinizing Hormone (LH)
- Lymphocytes
- Magnesium
- Mean Corpuscular Hemoglobin (MCH)
- Mean Corpuscular Hemoglobin Concentration (MCHC)
- Mean Corpuscular Volume (MCV)
- Mean Platelet Volume (MPV)
- Monocytes
- Neutrophils
- Non-HDL Cholesterol
- Platelet Count
- Potassium
- PSA Free
- PSA Percent Free
- PSA Total
- Red Blood Cell Count
- Red Cell Distribution Width (RDW)
- Sodium
- Thyroglobulin Antibodies
- Thyroid Peroxidase Antibodies
- Thyroid-Stimulating Hormone
- Total Bilirubin
- Total Cholesterol
- Total Iron Binding Capacity
- Total Protein
- Total Testosterone
- Triglycerides
- Uric Acid
- Urine Appearance
- Urine Bacteria
- Urine Bilirubin
- Urine Blood
- Urine Color
- Urine Glucose
- Urine Hyaline Casts
- Urine Ketones
- Urine Nitrite
- Urine pH
- Urine Protein
- Urine Red Blood Cells
- Urine Specific Gravity
- Urine Squamous Epithelial Cells
- Urine White Blood Cells
- Vitamin D (25-Hydroxy)
- White Blood Cell Count
- Zinc
Function Health vs Everlywell: founders and team
Function Health
Doctor on founding team? Yes
- Founded: 2021
- Funding: $800M+ raised; $450M growth financing (Jul 2026, General Catalyst's Customer Value Fund) on top of a $298M Series B (Nov 2025, led by Redpoint) at a $2.5B valuation
- Founders:
- Jonathan Swerdlin — Co-founder & CEO
- Mark Hyman, MD — Co-founder & Chief Medical Officerphysician
- Pranitha Patil — Co-founder & COO
- Mike Nemke — Co-founder & CTO
Physician co-founder Mark Hyman, MD is a functional-medicine doctor and serves as Chief Medical Officer.
Everlywell
Doctor on founding team? No
- Founded: 2015
- Funding: $250M+ raised; $175M Series D (2020, led by Goodwater & Highland) at a ~$1.3B valuation
- Founders:
- Julia Cheek, MBA — Founder & CEO
Founded by Julia Cheek (Harvard MBA, not a physician); oversight is an independent virtual physician network. Parent company Everly Health formed in 2021.
Function Health vs Everlywell: apps, testing, and care
| Function Health | Everlywell | |
|---|---|---|
| iOS app | ✓ | ✓ |
| Web app | ✓ | ✓ |
| Android app | ✓ | — |
| Wearable integration | ✓ | — |
| Testing Frequency | Twice per year (Annual: 100+ tests, Follow-up: 60+ tests) | Once per year (83 biomarkers) |
| Prescriptions | — | — |
| Access to clinicians | — | — |
| Trained its own AI model | Announced a "Medical Intelligence" AI product (Nov 2025), but disclosed no model, paper, or architecture | — |
- Function Health: Function markets Medical Intelligence as proprietary AI, but has published no model card, paper, or named provider. It reads as an orchestration/RAG layer over existing LLMs plus its biomarker data; a genuine trained foundation model can't be verified from public sources.
- Everlywell: Native iOS app and web; a native Android app isn't confirmed. Its 2025 "Eva" AI assistant uses machine-learning and voice models, not a proprietary trained foundation model.
Function Health vs Everlywell: which is better?
Function is the better value and the broader panel, twice the draws for less money. Everlywell makes sense if you specifically want an at-home kit and would rather skip the lab visit, or if you want a single one-off snapshot instead of a membership.
Everlywell also carries 16 markers Function skips, mostly urinalysis plus a few like fasting insulin and vitamin B12, so check the biomarker breakdown above if any of those are the reason you're testing. See our Function Health biomarker list for the full panel.