SiPhox Health vs Rythm Health

Comparison

Rythm Health focuses on monthly at-home testing with a smaller fixed panel. SiPhox Health offers at-home blood testing too, but gives members broader panel choice, flexible cadence, and deeper programs for metabolic, cardiovascular, hormone, thyroid, and longevity goals.

CollectionBoth use at-home upper-arm collection
Rythm price$79 per month plus shipping, handling, and lab fees
CadenceMonthly Rythm subscription vs flexible SiPhox Health cycles

How SiPhox Health compares to Rythm Health

SiPhox HealthRythm Health
Testing experience
How collection worksFast and painless at-home blood sample collected with our kit and mailed back to the lab.Same.
Travel requiredNo appointment or lab visit required for standard at-home collection.Same.
Pricing and cadence
PriceStarts at $99 for the first testing cycle, then renews at $124. Shipping is $25.$79 per month plus shipping, handling, and lab fees (no other testing frequency options).
Testing frequencyMonthly, quarterly, or every-6-month testing. Members can pause, cancel, or change cadence anytime.Ships every 30 days, with skip and cancellation options.
Coverage
Biomarker breadthMultiple panels across longevity, cardiovascular, metabolic, hormone, and thyroid goals, with Ultimate 360 as the broadest panel.A smaller recurring panel focused on heart health, metabolic fitness, thyroid function, liver/kidney markers, and hormone balance.
Example markersPanel-dependent markers such as ApoB, hs-CRP, thyroid markers, sex hormones, metabolic markers, liver/kidney markers, and nutrients.ApoB, LDL-C, HDL-C, hs-CRP, ferritin, albumin, vitamin D, TSH, Free T3, creatinine, SHBG, and hormone markers.
Results
Guidance after resultsPersonalized insights, an action plan, 24/7 AI health coach, exercise, diet, and supplement recommendations, wearable integrations, past lab uploads, and an all-in-one dashboard.Dashboard and AI health coach experience focused on monthly trends.
Membership features
Panel flexibilitySelect from 4 base panels. Panel upgrades available, up to 60 biomarkers. Test once a month, quarterly, or every 6 months.One recurring panel rather than multiple goal-specific panel choices.

SiPhox Health is the stronger fit if you want

  • A choice of panels instead of one fixed monthly panel
  • Quarterly or every-6-month testing without manually skipping months
  • A broader program for thyroid, hormone, heart, metabolic, and longevity goals

Rythm may fit better if you want

  • A small panel every month
  • A subscription designed around monthly trend lines

Start with the panel that fits your goals.

Membership includes your choice of a base panel, clear insights, and flexible testing cadence.

Our mission is to empower everyday people to test their blood biomarkers painlessly at home and live healthier, longer.

Company
SiPhox, Inc.
111 Terrace Hall Avenue, Burlington
MA 01803 US

The reference ranges and insights presented in the SiPhox Health dashboard are meant to improve readability and provide context, however you should consult with your physician for a more formal interpretation of your results. No communication from SiPhox Health is meant to be or should be taken as medical advice. SiPhox Health is a wellness-only service and is not designed to diagnose, prevent, or treat any disease. If you are concerned about any of the data in your dashboard please consult your physician immediately.

SiPhox Health mail-in testing is fulfilled and provided by third parties, in compliance with laboratory-developed test regulations.

LegitScript approvedCLIA CertifiedCAP AccreditedLegitScript approved