Rythm Health vs SiPhox Health
SiPhox Health is cheaper to start ($298 vs $948 per year, lowest published plans). Rythm Health scores higher overall (8.0 vs 7.0).
By Julian Caraulani · prices checked
Quick verdict
Our pick between the two: Rythm Health
Rythm Health scores 8.0/10 against 7.0 for SiPhox Health, ahead on clinical care, access and reputation. SiPhox Health can still be the better fit: it is best for people who want to test at home on their own schedule and track change over time.
Side by side
| Rythm Health | SiPhox Health | |
|---|---|---|
| Lowest price | $948/yr (renews every 30 days; skip up to 90 days) | $298/yr (per testing cycle; slowest cadence is every 6 months) |
| Our score | 8.0/10 | 7.0/10 |
| Treatments | At-home test kits | At-home test kits, Hormone panels |
| Medication in price | Not stated | Not stated |
| Drugs dispensed | Not stated | Not stated |
| Labs | Not stated | Not stated |
| Membership | Not stated | Not stated |
| Insurance | No; self-pay | No; self-pay |
| States | All 50 states, per its own site (2026-10-31) | 48 states (not HI, NY), per its own site (2026-10-31) |
| Cancellation | Monthly, renews every 30 days; cancel anytime with no fee; skip up to 90 days. 90-day money-back on first test only if completed and requested within 7 days of results. Charges reversible only before the kit is prepared to ship. | Cancel, pause or modify anytime from the account portal; keep access to past data. |
| FDA warning letters | None found (October 31, 2026) | None found (October 31, 2026) |
| Trustpilot | 4.8/5 (3,296 reviews) | 4.7/5 (718 reviews) |
| Best for | People who want a small panel every month at home and will use the trend. | People who want to test at home on their own schedule and track change over time. |
| Prices checked | 2026-10-31 | 2026-10-31 |
Price by treatment
The lowest all-in plan each publishes for the treatments both offer, with the page we read it on.
| Treatment | Rythm Health | SiPhox Health |
|---|---|---|
| At-home test kits | $948/yr (renews every 30 days; skip up to 90 days) source, 2026-10-31 | $298/yr (per testing cycle; slowest cadence is every 6 months) source, 2026-10-31 |
Rythm Health: a closer look
Monthly at-home capillary kit run in its own CLIA-certified, CAP-accredited lab. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Rythm Health.
In its favour
- Runs samples in its own CLIA-certified, CAP-accredited lab
- Available in all 50 states
- Skip up to 90 days between tests
To weigh
- $79 headline is per month: about $948/yr before shipping and tax; Rythm's own affiliate page values it at $1,200/yr.
- Auto-renews every 30 days.
- No physician-patient relationship or medical advice; critical results are your responsibility to act on.
- Money-back guarantee is narrow: first test only, claim within 7 days of results.
SiPhox Health: a closer look
At-home upper-arm kits on a subscription, tested monthly, quarterly or twice a year. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming SiPhox Health.
In its favour
- At-home upper-arm collection, no lab visit
- Cancel, pause or switch panels any time
- States CLIA and CAP accredited partner lab
To weigh
- Headline price excludes $25 shipping per cycle; $99 is first cycle only.
- Not available in New York or Hawaii.
- Privacy policy allows selling aggregated data and sharing de-identified data with AI vendors.
- Wellness-only service; outsourced lab, recurring subscription billed per cycle.
Which should you choose?
Choose Rythm Health
Best for people who want a small panel every month at home and will use the trend. Its lowest all-in plan is $948/yr (renews every 30 days; skip up to 90 days).
Check Rythm Health's priceChoose SiPhox Health
Best for people who want to test at home on their own schedule and track change over time. Its lowest all-in plan is $298/yr (per testing cycle; slowest cadence is every 6 months).
Check SiPhox Health's priceRythm Health vs SiPhox Health: questions people ask
Is Rythm Health or SiPhox Health cheaper?
SiPhox Health starts lower at $298 per year versus $948 at Rythm Health, comparing each program's lowest all-in plan.
Which is better, Rythm Health or SiPhox Health?
On our published score Rythm Health rates 8.0 and SiPhox Health rates 7.0. Rythm Health is best for people who want a small panel every month at home and will use the trend; SiPhox Health is best for people who want to test at home on their own schedule and track change over time.
Do Rythm Health and SiPhox Health offer the same treatments?
Rythm Health: At-home test kits. SiPhox Health: At-home test kits, Hormone panels.
Does either include the medication in the price?
Rythm Health: not stated. SiPhox Health: not stated.
Blood Test Watchdog compares testing services. It is not medical advice, does not interpret results and does not publish reference ranges as advice. Talk to a licensed clinician about which tests you need and what your results mean. Partner links may earn us a commission; our score never depends on it. Compare other programs.