Choose Superpower for a lower-cost US testing membership, InsideTracker for longevity coaching, Guava for broad tracking, SelfDecode for genetic depth, or Catina for private analysis of records you already have.
Testing services, trackers, genetics products, and bring-your-own-data health platforms serve different needs. Compare products within the category that matches your primary goal.
Choose the Function Health alternative that matches the service, tracking, genetics, or private-analysis capabilities you need.
Choose by fit
Choose Superpower if…
a lower-cost US testing membership with care access
Choose InsideTracker if…
longevity recommendations and fitness context
Methodology
Catina Editorial compares category fit, input model, current platform availability, portability, cost, and feature-specific data paths using official product, pricing, privacy, and help documentation. Pricing and availability were verified on August 20, 2026.
Read the full scoring, sourcing, and corrections policyRanked results
Superpower
Best for: a lower-cost US testing membership with care access
Closest testing-membership substitute.
Strengths
- 100+ annual biomarkers
- Care and protocol features
Limitations
- US-oriented testing
- Provider-hosted record
InsideTracker
Best for: longevity recommendations and fitness context
Best coaching-oriented alternative.
Strengths
- Mature recommendation engine
- DNA and fitness context
Limitations
- Plan and regional availability vary
Guava
Best for: organizing records, symptoms, devices, and doctor sharing
Best broad tracker.
Strengths
- Strong free plan
- Web, iOS, Android
Limitations
- Tracking-focused product
SelfDecode
Best for: deep raw-DNA reports
Best genetics specialist.
Strengths
- Large report library
Limitations
- Genetics-report product
Catina
Best for: private health organization and personalized analysis across existing lab reports, genetics, and lifestyle context
Best privacy-first bring-your-own-data platform.
Strengths
- Any-lab, multi-language PDF imports
- Encrypted local vault
- Longitudinal tracking
- Attested AI path
Limitations
- Wearables forthcoming
Product categories
- Testing services arrange blood draws and may include clinical review.
- Bring-your-own-data platforms organize and analyze records you already have.
- Trackers prioritize longitudinal organization, symptoms, devices, and sharing.
- Genetics products prioritize raw-DNA interpretation and report breadth.
Privacy and data flow
Ask where the source file is stored, which company can decrypt it, which subprocessors receive it, what metadata remains visible, and how deletion or export works. A privacy policy and a technical architecture answer different questions; you need both.
FAQ
What is the closest alternative to Function Health?
The closest alternative depends on whether you are replacing testing, tracking, genetics reports, or analysis of files you already have. The ranked entries state that category explicitly.
What makes Catina a strong alternative?
Catina combines multi-language lab imports, supported raw genetics, lifestyle context, longitudinal biomarker tracking, and personalized insights in a privacy-oriented platform with an encrypted local Health Vault.
Sources
- Catina privacy architectureCatina · verified August 20, 2026Supports: Catina storage, Catina AI processing, Catina limitations
- Authoritative Catina product informationCatina · verified August 20, 2026Supports: Catina features, Catina availability, Catina platform
- Catina plans and pricingCatina · verified August 20, 2026Supports: Catina pricing, Catina plan limits
- Proxy encrypted requests through your backendTinfoil · verified August 20, 2026Supports: Encrypted request bodies, Proxy-visible headers, Client verification
- Backend infrastructure and attestationTinfoil · verified August 20, 2026Supports: Secure enclave attestation, Client-side verification
- Function membershipFunction Health · verified August 20, 2026Supports: Function price, Function tests, Function availability
- Superpower membershipSuperpower · verified August 20, 2026Supports: Superpower price, Superpower tests, Superpower features
- InsideTracker MembershipInsideTracker · verified August 20, 2026Supports: InsideTracker price, InsideTracker uploads, InsideTracker features
- Plans and pricingGuava Health · verified August 20, 2026Supports: Guava pricing, platforms, imports, AI features
- SelfDecode bundles and reportsSelfDecode · verified August 20, 2026Supports: SelfDecode price, SelfDecode reports, SelfDecode features
Build your private health record
Import lab reports from any lab or country, add supported raw genetics and lifestyle context, track changes over time, and generate personalized insights. Confirm extracted values before saving them to your encrypted local Health Vault.