Disclosure: Vital Signs Today may earn a commission if you buy through links on this page, at no extra cost to you. This does not influence our evidence-based assessments. We are not a medical provider; talk to a clinician before acting on test results.
Quick answer: In a superpower vs rhythm comparison, Superpower is the safer pick for most people. Its numbers are public: 100+ biomarkers (about 150 with calculated ratios), 17 plain-language health scores, an action plan, and an AI concierge, all in one annual draw for $199 a year. Rythm is a newer, longevity-focused entrant whose exact panel size and price you should confirm on its own site before buying. Want a broad, readable, documented baseline today? Go Superpower. Pick Rythm only after you verify its current panel and price fit what you actually need.
Disclosure: Vital Signs Today may earn a commission if you buy through links on this page, at no extra cost to you. This does not influence our evidence-based assessments. We are not a medical provider; talk to a clinician before acting on test results.
| Service | Best for | Pricing | Visit |
|---|---|---|---|
| Superpower | Whole-body optimization | ~$179/yr membership | View › |
| Function Health | Annual deep panel | Annual membership | View › |
Superpower vs Rhythm: The Short Version
Both sit in the same fast-growing category: direct-to-consumer blood testing that skips the doctor’s referral, runs a wide panel, and hands you a modern dashboard instead of a stack of lab printouts. The pitch is identical on both sides. Get a full-body read on your biomarkers, track them over time, and catch the slow drifts (blood sugar, lipids, thyroid) before they become a diagnosis.
The thing that decides it, and the reason we lean one way, is documentation. Superpower publishes what buyers actually want to know: a fixed annual price, a marker count, what the membership includes. Rythm is a newer, longevity-leaning service, and its specifics are less settled in the public record. That is not an accusation. Plenty of good companies are early. It just means any Rythm number you see floating around online is something to confirm on its site, not a fact to bank on. So the honest framing of this superpower vs rhythm blood test decision is simple: one option is a known quantity, the other you verify before you commit.
Biomarkers: What Each Test Actually Covers
This is where most of these searches start, so let us be precise about what we can verify and what we cannot.
Superpower’s panel
Superpower runs 100+ biomarkers per draw, roughly 150 once you count calculated ratios (derived values like kidney-function estimates that are computed, not separately drawn). The panel spans what a thorough annual physical would want and then some: metabolic and blood sugar, a full lipid profile, liver and kidney function, thyroid, key hormones, inflammation markers, and a complete blood count. On top of the raw numbers, 17 health scores roll those markers into plain-language categories, so you are not staring at 150 rows guessing what matters. That breadth is published and consistent, which is exactly what you want from a baseline you will repeat next year.
Rythm’s panel
Rythm positions itself around longevity and biological-age tracking, which usually means a panel weighted toward metabolic, hormonal, and aging-related markers. We are not going to quote a specific biomarker count, because the figures circulating for newer services are easy to get wrong, and printing a number we have not verified would do you a disservice. Before you buy, check Rythm’s own site and confirm its panel includes the markers you came for. The takeaway: Superpower gives you a documented, broad, general-purpose panel; Rythm may suit a longevity-first buyer, but you have to verify its coverage yourself.
Price: What You Can Count On
Superpower is $199 per year for the 100+ biomarkers, the 17 scores, the action plan, and the AI concierge. One caveat worth flagging up front: it is $399 in New York and New Jersey because of stricter state lab rules, so if you live there, run your math with that number. Either way, the figure is fixed and public, so you know your total before you sign up.
For Rythm, we are not going to print a price we have not confirmed. DTC longevity services often use per-panel or membership pricing that shifts with promotions and tiers, and a stale number helps nobody. See the provider for current pricing, then compare it like-for-like: total annual cost, how many draws are included, and whether retests cost extra. That is the only way to know if Rythm is actually cheaper or pricier than Superpower for what you get. The practical point in any rhythm vs superpower call: with Superpower you know the bill upfront; with Rythm, do the homework first.
The Experience: Draw, Dashboard, and Follow-Up
Markers and price get the clicks, but the experience is what you live with after you pay.
Superpower is built around one comprehensive annual draw and a dashboard that does the interpreting for you. The 17 health scores translate raw labs into categories a non-clinician can read, the action plan tells you what to do next, and the AI concierge lets you ask, in plain English, what a marker means, why it might be off, and what tends to move it. For someone who wants clarity rather than a data dump, that interpretation layer is the headline feature.
Rythm, as a longevity product, tends to emphasize trend tracking and aging-related scoring. Whether its dashboard, draw logistics, and follow-up match Superpower’s depth is something we cannot confirm in detail, so check its current materials before you assume. As a general rule with newer services, expect the software and support to still be maturing.
One thing applies to both: neither is a clinic. Both are screening and tracking services, not diagnostic providers. Any result that lands outside the normal range should be reviewed with a licensed clinician before you act on it. Treat either dashboard as the start of a conversation, not the diagnosis itself.
Who Each One Suits
Here is the straight call.
Pick Superpower if you are: a generally healthy adult who wants one broad, readable annual baseline; someone tired of getting 5 to 10 markers at a standard physical; a person who values plain-language scores and a plan over raw numbers; or anyone who wants a known price and a documented panel before committing at $199 a year.
Consider Rythm if you are: specifically focused on longevity and biological-age tracking, and willing to verify its current panel and pricing on the provider’s site to confirm the fit. For a niche, aging-first goal it may earn a look, but only after that check.
For the broad middle of the market, Superpower is our recommended pick, on the simple logic that a documented, readable panel at a fixed price beats a less-settled unknown. If you want even more clinical depth or twice-yearly retesting, Function Health is the heavier alternative worth weighing, at 160+ biomarkers and two draws a year for $365.
Full-body lab membership: 100+ biomarkers, doctor-reviewed, tracked over time.
Our Verdict
In the superpower vs rhythm blood test matchup, our recommendation for most readers is Superpower, for one concrete reason: you can see exactly what you are buying. 100+ biomarkers (about 150 with calculated ratios), 17 health scores, an action plan, and an AI concierge, for $199 a year ($399 in New York and New Jersey). Rythm may be a fair option for a longevity-first buyer, but its specifics are newer and less documented, so verify its panel and price before you decide.
The best blood test is the one whose results you understand, act on, and can budget for. On all three counts, Superpower is the easier yes today. Rythm earns the nod only if you confirm it covers a longevity goal Superpower does not, at a price that holds up against the $199 you would otherwise pay.
Related reading on Vital Signs Today
- Superpower vs Everlywell: Membership Panel vs Single Kits
- Superpower vs SiPhox Health: Full Draw vs Finger-Prick
- Superpower Blood Test vs Function Health: Panel-by-Panel (2026)
- Superpower Blood Test Review (2026): Is It Worth the Membership?
Frequently asked questions
Superpower vs Rhythm: which tests more biomarkers?
Superpower publishes its count: 100+ biomarkers, about 150 counting calculated ratios, in one annual draw. Rythm does not have a marker count we can verify here, so check its site directly. If you want a documented, broad panel today, Superpower is the safer bet.
Is Superpower or Rythm cheaper?
Superpower is a fixed $199 per year ($399 in New York and New Jersey). We do not quote a Rythm price we have not confirmed, since DTC pricing shifts with promotions and tiers. See the provider for current pricing, then compare total annual cost like-for-like.
Is the Superpower blood test legit compared to Rythm?
Yes. Superpower runs samples through accredited labs and is a legitimate screening and tracking service, not a diagnostic clinic. Rythm is a newer entrant; confirm its lab partners and accreditation on its own site. The rhythm vs superpower question is about documentation and fit, not whether the testing is real.
Should I pick Rythm for longevity tracking?
Possibly, if longevity and biological-age tracking is your specific goal and Rythm’s verified panel covers the markers you want. Check that panel and its price first. Superpower’s broad annual baseline already covers most longevity-relevant markers at a known $199.
What about Function Health in a superpower vs rhythm decision?
If you want maximum depth, Function Health is the heavier alternative: 160+ biomarkers, two draws a year plus a 6-month retest, for $365. It costs more than Superpower’s $199 but tests more. Weigh it alongside both if clinical thoroughness is your priority.
