InsideTracker vs Function Health
Complete Head-to-Head Comparison
Compare costs, biomarker coverage, and value to find the best blood testing service for your needs
Quick Comparison Summary
Best Value
Function Health
43.8 biomarkers per $100
Most Comprehensive
Function Health
160+ biomarkers tested
Most Tests Per Year
Tie
2 tests/year each
Cost & Value Comparison
InsideTracker
Annual Cost$829
Tests per Year2
Total Biomarkers54
Cost per Test$414
Function Health
Annual Cost$365
Tests per Year2
Total Biomarkers160+
Cost per Test$182
Service Details
| Feature | InsideTracker | Function Health |
|---|---|---|
| Lab Locations | Quest/Labcorp | 2000+ Quest |
| Key Features | DNA integration, fitness tracker data, biological age (InnerAge), TERRA AI health guide, 10 healthspan categories | Cancer markers, autoimmune panel (ANA), advanced lipids (ApoB), heavy metals (lead), Omega-3, clinician review |
| Notes | $149/yr membership + $340/test for members. New customer bundles: $489 (1 test), $829 (2 tests), $1,509 (4 tests). Member repeat pricing: $340 / $680 / $1,360. Mobile draw $119 flat, and required in NY, NJ, RI, HI, AZ and Canada. Estradiol + Progesterone add-on $89. International members can buy the $149 membership alone and upload their own bloodwork. Multi-test bundles periodically discounted. | $365/year, single membership tier (reduced from $499; Function announced the $365 price directly). 160+ lab tests 2x/year plus on-demand testing. GRAIL cancer screening, MRI/CT scans, Alzheimer's testing, mold reactivity as add-ons. HSA/FSA eligible. |
Biomarker Coverage Comparison
47
Tests in Common
0
Only in InsideTracker
58
Only in Function Health
Tests Only in Function Health
- VLDL Cholesterol(Lipid Panel / Cardiovascular Health)
- Lipoprotein (a)(Lipid Panel / Cardiovascular Health)
- LDL Particle Number(Lipid Panel / Cardiovascular Health)
- LDL Particle Size(Lipid Panel / Cardiovascular Health)
- Uric Acid(Metabolic Health / Glucose)
- ALP (Alkaline Phosphatase)(Liver Function)
- Bilirubin (Total)(Liver Function)
- Total Protein(Liver Function)
- Globulin(Liver Function)
- BUN (Blood Urea Nitrogen)(Kidney Function)
- eGFR (Estimated Glomerular Filtration Rate)(Kidney Function)
- BUN/Creatinine Ratio(Kidney Function)
46 more
- Chloride(Electrolytes & Minerals)
- Carbon Dioxide (CO2)(Electrolytes & Minerals)
- Free T4 (Thyroxine)(Thyroid Function)
- Free T3 (Triiodothyronine)(Thyroid Function)
- TPO Antibodies (Thyroid Peroxidase)(Thyroid Function)
- Thyroglobulin Antibodies(Thyroid Function)
- Iodine(Thyroid Function)
- Selenium(Thyroid Function)
- PSA (Prostate Specific Antigen)(Sex Hormones (Male))
- FSH (Follicle Stimulating Hormone)(Sex Hormones (Female))
- LH (Luteinizing Hormone)(Sex Hormones (Female))
- Prolactin(Sex Hormones (Female))
- AMH (Anti-Mullerian Hormone)(Sex Hormones (Female))
- ESR (Erythrocyte Sedimentation Rate)(Inflammation & Immune Markers)
- Homocysteine(Inflammation & Immune Markers)
- Omega-3 Index / Fatty Acids(Advanced / Specialty Markers)
- Heavy Metals - Lead(Advanced / Specialty Markers)
- Heavy Metals - Mercury(Advanced / Specialty Markers)
- IGF-1 (Insulin-like Growth Factor)(Advanced / Specialty Markers)
- HOMA-IR (Insulin Resistance)(Advanced / Specialty Markers)
- ANA Screen (Antinuclear Antibodies)(Autoimmune Markers)
- ANA Titer(Autoimmune Markers)
- ANA Pattern(Autoimmune Markers)
- Rheumatoid Factor (RF)(Autoimmune Markers)
- Celiac Disease Panel (Comprehensive)(Autoimmune Markers)
- CEA (Carcinoembryonic Antigen)(Cancer Screening Markers)
- CA-125 (Ovarian Cancer)(Cancer Screening Markers)
- CA 19-9 (Pancreatic/GI Cancer)(Cancer Screening Markers)
- AFP (Alpha-Fetoprotein - Liver Cancer)(Cancer Screening Markers)
- Neutrophil/Lymphocyte Ratio(Additional Specialized Tests)
- HDL Subfractions (Large/Small)(Additional Specialized Tests)
- Cystatin C(Kidney Function)
- Reverse T3(Thyroid Function)
- Pregnenolone(Sex Hormones (Male))
- Zinc(Electrolytes & Minerals)
- Copper(Electrolytes & Minerals)
- Oxidized LDL (OxLDL)(Lipid Panel / Cardiovascular Health)
- Fibrinogen(Inflammation & Immune Markers)
- Lipase(Liver Function)
- PTH (Parathyroid Hormone)(Electrolytes & Minerals)
- Osteocalcin(Advanced / Specialty Markers)
- Leptin(Advanced / Specialty Markers)
- Adiponectin(Advanced / Specialty Markers)
- C-Peptide(Metabolic Health / Glucose)
- Immature Granulocytes(Complete Blood Count (CBC))
- Apolipoprotein A1 (ApoA1)(Lipid Panel / Cardiovascular Health)
Full biomarker tableall 105 markers, side by side
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Frequently Asked Questions
Which is cheaper, InsideTracker or Function Health?
Function Health is cheaper at $365/year, compared with $829/year for InsideTracker.
How much do InsideTracker and Function Health cost per year?
InsideTracker costs $829/year for 2 tests ($414 per test). Function Health costs $365/year for 2 tests ($182 per test).
Which tests more biomarkers, InsideTracker or Function Health?
Function Health lists more biomarkers: 160+, compared with 54 for InsideTracker. Of the markers in our database, 47 are in both panels.
Which gives more biomarkers per dollar, InsideTracker or Function Health?
Function Health gives more biomarkers per dollar: 43.8 per $100 of annual cost, compared with 6.5 for InsideTracker. Count alone does not decide it; check whether the markers you need are included.
What does InsideTracker test that Function Health doesn't?
Every marker we track in InsideTracker's panel is also in Function Health's.
What does Function Health test that InsideTracker doesn't?
58 markers in our database are in Function Health's panel but not InsideTracker's, including VLDL Cholesterol, Lipoprotein (a), LDL Particle Number, and 55 more.
How many tests per year do InsideTracker and Function Health include?
InsideTracker includes 2 tests per year. Function Health includes 2 tests per year.
Where do InsideTracker and Function Health draw blood?
InsideTracker: Quest/Labcorp. Function Health: 2000+ Quest.
Can I use insurance with InsideTracker or Function Health?
Both are direct-to-consumer services paid out of pocket. Some buyers pay with HSA/FSA funds or submit receipts for out-of-network reimbursement; check with your plan and the provider.