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Clinics · Comparison

Rythm Health vs SiPhox Health

Both are primarily bloodwork & longevity providers, so the differences are in consult model, what is bundled, who prescribes, and price.

Rythm Health logo Rythm Health From $79/month Read the Rythm Health review →
vs
SiPhox Health From $124 per at-home test kit Read the SiPhox Health review →

Side-by-side comparison

Rythm Health logoRythm HealthSiPhox Health
Our score9.1 / 109.0 / 10
Starting price$79/month$124 per at-home test kit
Primary serviceBloodwork & longevityBloodwork & longevity
All servicesBloodworkBloodwork
Consult modelUnconfirmedUnconfirmed
PrescriberUnconfirmedUnconfirmed
LabsIncludedIncluded
InsuranceCash payCash pay
Availability50 states49 states
CancellationSelf-serve onlineSelf-serve online
Trustpilot4.8 / 5 (3,440 reviews)4.7 / 5 (1,181 reviews)
Regulatory / legal recordNone foundNone found
Visit ↗Visit ↗

* Provisional score: one or two criteria could not be verified.

Which one is right for you

Choose Rythm Health if…

People who want to track a short set of hormone, lipid and metabolic markers every month or two from home, and who will take results to their own doctor for any treatment.

  • Published per-kit price of $79 for repeat testing, with the option to skip up to 90 days between kits
  • Home collection with the Tasso+ device; no lab visit or phlebotomist
  • Self-serve cancellation from the account dashboard

Choose SiPhox Health if…

People who want frequent, needle-free at-home tracking of a focused biomarker panel and do not need a clinician or prescriptions from the same service.

  • Each plan period includes an at-home test kit; no lab visit or needle draw
  • Self-serve cancellation in the account portal with no minimum commitment
  • Choice of testing cadence (monthly, quarterly or every 6 months) and free switching between four core panels

Price: what you actually pay

Rythm Health

Homepage (seen 2026-11-05): '$79/test', billed as a monthly subscription; first kit 30% off at $55.30 under a 'limited time' offer; '+ shipping & tax' with the shipping amount not shown before checkout. Each kit tests 25+ biomarkers (separate men's and women's panels: hormones including total and free testosterone, estradiol, SHBG, cortisol; TSH; ApoB, lipids, hsCRP; vitamin D, ferritin, fructosamine; kidney and liver markers) from a capillary sample collected at home with the Tasso+ device. Membership includes the kit, lab analysis, results dashboard and an AI coach. Members can skip up to 90 days at a time without charge. HSA/FSA eligible.

SiPhox Health

Homepage (seen 2026-11-05): 'Start testing $124 + Shipping & handling'; 'No monthly fees'; the plan renews on the cadence chosen (monthly, quarterly or every 6 months) and includes the test kit with a choice of four core panels (Longevity Essentials, Thyroid Focus, Hormone Focus, Heart & Metabolic; 25 to 28 biomarkers per test, upgradeable to 59), results dashboard, action plan and AI assistant. Upgrades per test: Ultimate 360 (60 biomarkers) +$125; GLP Optimization panel +$75; IGF-1 add-on +$70. Shipping and handling amount is not stated on the pages loaded. Product data embedded in the pricing page lists the Longevity Essentials kit at $125 per period and a one-time panel at $225; those figures are not displayed as text.

What happens after you sign up

Rythm Health

Testing and insights only. No prescriptions.

SiPhox Health

Testing and insights only. No prescriptions.

Cancelling and refunds

Rythm Health

FAQ: cancel in the account under Accounts > Billing > 'Cancel Subscription'; results stay accessible but the AI coach ends. Refund and Skip Policy (updated 2025-02-11): cancel via dashboard > account billing > 'Manage Shipping and Payment'; cancellation does not trigger a refund. A '90-day money-back guarantee' applies to the first test only, and only if the sample was collected and returned to the lab and the request is made within 7 days of receiving results. The latest monthly charge can be reversed only if the kit has not yet been prepared to ship. Used kits are not refundable and shipping costs are non-refundable. Terms s.11.2: subscriptions renew automatically each billing period until cancelled.

SiPhox Health

FAQ: modify, pause or cancel 'anytime from your account portal. There's no commitment'; prepaid annual plans stop renewing at the end of the period. Terms of Service (last updated 2026-06-15): subscriptions auto-renew until cancelled via the 'Manage Membership' page in Account Settings or by emailing support@siphoxhealth.com. Refund Policy (updated 2026-02-02): no refunds for a period in which a kit has already shipped; to cancel a pending shipment, email support; monthly payments are nonrefundable and benefits continue to the end of the paid period. Kits cannot be returned.

Where each is available

Rythm Health

FAQ: 'Rythm is currently available nationwide across all 50 U.S. states.' Requires a U.S. shipping address FedEx can deliver to and collect from; no international shipping. DC is not mentioned. Footer lists the lab as 'CLEP Permitted' (New York's lab permit program).

SiPhox Health

State Coverage page: 'We do not yet provide services in: Hawaii and New York.' Diagnostic kits are offered everywhere else, including DC (48 states + DC). Telemedicine services are excluded in Alaska, Delaware, DC, Hawaii, Kansas, Louisiana, Mississippi and New York. Also offered in Canada without telemedicine.

Full breakdown of each

#1 Rythm Health logo

People who want to track a short set of hormone, lipid and metabolic markers every month or two from home, and who will take results to their own doctor for any treatment.

Starting price
$79/month
Consult model
Unconfirmed
Prescriber
Unconfirmed
Labs
Included
Insurance
Cash pay
Availability
50 states
Cancellation
Self-serve online
Founded
Unconfirmed

Pricing

Homepage (seen 2026-11-05): '$79/test', billed as a monthly subscription; first kit 30% off at $55.30 under a 'limited time' offer; '+ shipping & tax' with the shipping amount not shown before checkout. Each kit tests 25+ biomarkers (separate men's and women's panels: hormones including total and free testosterone, estradiol, SHBG, cortisol; TSH; ApoB, lipids, hsCRP; vitamin D, ferritin, fructosamine; kidney and liver markers) from a capillary sample collected at home with the Tasso+ device. Membership includes the kit, lab analysis, results dashboard and an AI coach. Members can skip up to 90 days at a time without charge. HSA/FSA eligible.

Prices as listed on November 5, 2026. They change often; confirm at checkout.

What we like

  • Published per-kit price of $79 for repeat testing, with the option to skip up to 90 days between kits
  • Home collection with the Tasso+ device; no lab visit or phlebotomist
  • Self-serve cancellation from the account dashboard
  • Runs its own CLIA-certified, CAP-accredited lab and states availability in all 50 states

Watch out for

  • Panel is small (25+ markers) and differs by sex because of sample volume limits; some markers are dropped if the sample is short or outside stability windows
  • Shipping is charged on top of the $79 price and the amount is not shown before checkout
  • Money-back guarantee covers the first test only and requires a request within 7 days of results
  • No clinician consultation, diagnosis or prescribing; interpretation comes from an AI coach
Cancelling

FAQ: cancel in the account under Accounts > Billing > 'Cancel Subscription'; results stay accessible but the AI coach ends. Refund and Skip Policy (updated 2025-02-11): cancel via dashboard > account billing > 'Manage Shipping and Payment'; cancellation does not trigger a refund. A '90-day money-back guarantee' applies to the first test only, and only if the sample was collected and returned to the lab and the request is made within 7 days of receiving results. The latest monthly charge can be reversed only if the kit has not yet been prepared to ship. Used kits are not refundable and shipping costs are non-refundable. Terms s.11.2: subscriptions renew automatically each billing period until cancelled.

Where it is available

FAQ: 'Rythm is currently available nationwide across all 50 U.S. states.' Requires a U.S. shipping address FedEx can deliver to and collect from; no international shipping. DC is not mentioned. Footer lists the lab as 'CLEP Permitted' (New York's lab permit program).

#2

People who want frequent, needle-free at-home tracking of a focused biomarker panel and do not need a clinician or prescriptions from the same service.

Starting price
$124 per at-home test kit
Consult model
Unconfirmed
Prescriber
Unconfirmed
Labs
Included
Insurance
Cash pay
Availability
49 states
Cancellation
Self-serve online
Founded
Burlington, MA

Pricing

Homepage (seen 2026-11-05): 'Start testing $124 + Shipping & handling'; 'No monthly fees'; the plan renews on the cadence chosen (monthly, quarterly or every 6 months) and includes the test kit with a choice of four core panels (Longevity Essentials, Thyroid Focus, Hormone Focus, Heart & Metabolic; 25 to 28 biomarkers per test, upgradeable to 59), results dashboard, action plan and AI assistant. Upgrades per test: Ultimate 360 (60 biomarkers) +$125; GLP Optimization panel +$75; IGF-1 add-on +$70. Shipping and handling amount is not stated on the pages loaded. Product data embedded in the pricing page lists the Longevity Essentials kit at $125 per period and a one-time panel at $225; those figures are not displayed as text.

Prices as listed on November 5, 2026. They change often; confirm at checkout.

What we like

  • Each plan period includes an at-home test kit; no lab visit or needle draw
  • Self-serve cancellation in the account portal with no minimum commitment
  • Choice of testing cadence (monthly, quarterly or every 6 months) and free switching between four core panels
  • HSA/FSA eligible

Watch out for

  • Not available in Hawaii or New York; telemedicine excluded in several more states and DC
  • Shipping and handling fee is added to every kit and the amount is not published on the pages loaded
  • No refund once a kit has shipped
  • Wellness-only service: no prescribing, and results come with a recommendation to consult your own physician
Cancelling

FAQ: modify, pause or cancel 'anytime from your account portal. There's no commitment'; prepaid annual plans stop renewing at the end of the period. Terms of Service (last updated 2026-06-15): subscriptions auto-renew until cancelled via the 'Manage Membership' page in Account Settings or by emailing support@siphoxhealth.com. Refund Policy (updated 2026-02-02): no refunds for a period in which a kit has already shipped; to cancel a pending shipment, email support; monthly payments are nonrefundable and benefits continue to the end of the paid period. Kits cannot be returned.

Where it is available

State Coverage page: 'We do not yet provide services in: Hawaii and New York.' Diagnostic kits are offered everywhere else, including DC (48 states + DC). Telemedicine services are excluded in Alaska, Delaware, DC, Hawaii, Kansas, Louisiana, Mississippi and New York. Also offered in Canada without telemedicine.

Rythm Health vs SiPhox Health: common questions

Is Rythm Health or SiPhox Health better?

Rythm Health ranks higher on our rubric (9.1 vs 9.0 out of 10; * means provisional, and fully verified scores rank first). That reflects price transparency, labs, availability, cancellation terms and treatment range, not clinical outcomes. Rythm Health: People who want to track a short set of hormone, lipid and metabolic markers every month or two from home, and who will take results to their own doctor for any treatment. SiPhox Health: People who want frequent, needle-free at-home tracking of a focused biomarker panel and do not need a clinician or prescriptions from the same service.

Which is cheaper, Rythm Health or SiPhox Health?

Rythm Health starts at $79/month (one at-home test kit per month, plus shipping and tax). SiPhox Health starts at $124 per at-home test kit plus shipping, on a monthly, quarterly or 6-month plan. Compare what each price includes, especially labs and medication.

Do Rythm Health and SiPhox Health include lab work?

Rythm Health: included. SiPhox Health: included.

Which is easier to cancel?

Rythm Health: FAQ: cancel in the account under Accounts > Billing > 'Cancel Subscription'; results stay accessible but the AI coach ends. Refund and Skip Policy (updated 2025-02-11): cancel via dashboard > account billing > 'Manage Shipping and Payment'; cancellation does not trigger a refund. A '90-day money-back guarantee' applies to the first test only, and only if the sample was collected and returned to the lab and the request is made within 7 days of receiving results. The latest monthly charge can be reversed only if the kit has not yet been prepared to ship. Used kits are not refundable and shipping costs are non-refundable. Terms s.11.2: subscriptions renew automatically each billing period until cancelled. SiPhox Health: FAQ: modify, pause or cancel 'anytime from your account portal. There's no commitment'; prepaid annual plans stop renewing at the end of the period. Terms of Service (last updated 2026-06-15): subscriptions auto-renew until cancelled via the 'Manage Membership' page in Account Settings or by emailing support@siphoxhealth.com. Refund Policy (updated 2026-02-02): no refunds for a period in which a kit has already shipped; to cancel a pending shipment, email support; monthly payments are nonrefundable and benefits continue to the end of the paid period. Kits cannot be returned.

Can Rythm Health or SiPhox Health prescribe treatment?

Rythm Health: no, testing and insights only. SiPhox Health: no, testing and insights only.

Which is available in more states?

Rythm Health: 50 states. SiPhox Health: 49 states.

Sources

Regulatory and primary sources

  1. Rythm Health: Rythm homepage ↗
  2. Rythm Health: Rythm FAQs ↗
  3. Rythm Health: Rythm Refund and Skip Policy (updated 2025-02-11) ↗
  4. Rythm Health: Rythm Terms and Conditions ↗
  5. Rythm Health: Rythm: What we test ↗
  6. Rythm Health: Laboratory Technician job listing, Omaha NE (search result) ↗
  7. Rythm Health: Rythm Health on Trustpilot ↗
  8. SiPhox Health: SiPhox Health homepage (seen 2026-11-05) ↗
  9. SiPhox Health: SiPhox Health FAQ ↗
  10. SiPhox Health: SiPhox Health State Coverage ↗
  11. SiPhox Health: SiPhox Health Refund Policy (updated 2026-02-02) ↗
  12. SiPhox Health: SiPhox Health Terms of Service (last updated 2026-06-15) ↗
  13. SiPhox Health: SiPhox Health panels and upgrade prices ↗
  14. SiPhox Health: SiPhox Longevity Essentials program page ↗
  15. SiPhox Health: SiPhox GLP Optimization panel ↗
  16. SiPhox Health: Intel, Khosla lead $27M in SiPhox Health (TechCrunch, 2023-07-19; search snippet) ↗
  17. SiPhox Health: SiPhox Health on Trustpilot (read 2026-11-05) ↗
  18. Lindy Health clinic scoring rubric ↗