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LONGEVITY

The best longevity apps in 2026

What is the best longevity app?

In our ranking the best longevity app is Complete. Complete is our own app. We wouldn’t build it if we didn’t think it was the best, we train with it ourselves, and we work every day to make it better. We ranked each app first on whether you can check how its age is calculated, and Complete prints the inputs and weights of its age on one page you can read.

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Complete is our own app, and we rank it first

Complete is our own app. We wouldn’t build it if we didn’t think it was the best, we train with it ourselves, and we work every day to make it better. It is first on this list. We apply the same five criteria to every app and show them in the next section, so you can check each placement yourself.

The first criterion favors what Complete publishes. If your goal is a DNA-methylation age or a blood-based age, the apps built for those may fit you better.

Every fact about another app comes from that company’s own page, read on 20 October 2026, and the section that uses it links the page. Prices and availability change, so check the company’s page before you buy.

How we ranked them

We asked the same five questions of every app.

CriterionWhat we check
1. Method publishedHow much of the age calculation you can read on the company’s own pages
2. What it is built fromThe measurements behind the number
3. Works withThe devices and data it needs
4. PriceWhat the company’s own page says it costs, and when we read it
5. PlatformsThe platforms it runs on

How the order works

Criterion 1 sets the order, in three levels. At level 1, the inputs and their weights are printed on a page you can read. At level 2, the company publishes a formula, or names the published models or clocks, that the age runs on and cites the research, without printing the weights. At level 3, the pages say what the number reads, in general terms. Inside a level, the order is our judgment of how much the pages tell you, and neighbors are close calls.

Criteria 2 to 5 describe each app so you can match it to your own gear and budget. They do not move an app between levels. The order ranks how checkable each age is. It does not rank which number predicts your health best, because we have no head-to-head evidence for that and make no claim about it.

Apple announced a Health Age feature on 9 September 2026 for a redesigned Health app that arrives later this year, and Apple says it needs Apple Watch[1]. Apple says the algorithm can factor in Apple Watch VO2max, resting heart rate, sleep and HRV, plus lab data you add[1]. We have not ranked it, because there is no released method to check yet. We rank Complete because its method page is public today, and the table shows its platforms like every other app’s.

1. Complete: the age with printed inputs and weights

Complete starts from your long-term goals, and Complete Age is one way it follows them: the goal under every goal is more good years. Four inputs count today: VO2max at a nominal 30%, resting heart rate at a nominal 20%, HRV at a nominal 20% and functional tests at a nominal 20%; Complete Age renormalizes these weights over the inputs available for the score. The functional tests are push-ups, pull-ups, a dead hang and single-leg balance. A fifth input, training consistency, has a nominal 10% slot that is not counted yet. If you add a blood panel, a PhenoAge, a published estimate of biological age from blood markers[2], joins on top with a nominal 15% weight.

Each input becomes a percentile against norms for your age and sex, and the weighted result maps to an age: a year for every full 5 points above or below 50, within 9 years of your real age, never below 18. Resting heart rate and HRV come from the 90-day median of one wearable: WHOOP, Oura or Apple Health, where Garmin and other watches send their data. A VO2max reading alone gives a provisional age, labelled VO2MAX ONLY in the app.

Complete is for iPhone only (iOS 17+). Complete is free to download, and logging and sharing your workouts on it stay free. Complete Age is Complete’s own number and is not medical advice. The method is published so you can check it, and the page linked below has the full table.

Read more

2. WHOOP: WHOOP Age from nine measures

WHOOP’s Healthspan feature gives you a WHOOP Age and a Pace of Aging. WHOOP’s Healthspan page says it works from nine metrics across sleep, strain and fitness: sleep consistency, hours of sleep, daily steps, time in heart rate zones 1-3 and 4-5, time in strength activities, VO2max, resting heart rate and lean body mass[3].

WHOOP’s 2025 white paper explains the method. For each metric it takes a hazard ratio for death from any cause from published studies and turns it into years with the formula 10 × ln(HR), because each extra year of age raises that risk by roughly 10%[4]. It adjusts for metrics that overlap, such as resting heart rate and VO2max, and prints a target for each metric, for example at least 70% sleep consistency[4]. We found no table of the final weights.

Healthspan needs a WHOOP Peak or WHOOP Life membership. It unlocks after you log 21 recoveries in your first 31 days and updates weekly, it is not available under 18, and WHOOP says it is for wellness purposes only, not for medical use[3]. The app requires a WHOOP wearable. The App Store listing offers new members the wearable and app free for 1 month, with terms and conditions, and the app runs on iPhone and iPad with iOS 18.0 or later[5].

3. TruAge by TruDiagnostic: three named epigenetic clocks

TruAge reads DNA methylation from a finger-prick blood sample you mail back. TruDiagnostic’s provider page says it combines three epigenetic clocks: OMICmAge for biological age, SYMPHONYAge for 11 organ systems and DunedinPACE for the pace of aging[6]. The page prints references, among them a 2026 Nature Aging paper on OMICmAge and a 2026 Biomarker Research comparison of fourteen aging biomarkers[6]. We found no weights for how the clocks combine.

The consumer shop lists the test at $499 and says the report, with a biological age, an aging speed and the age of 11 organ systems, arrives in a secure results portal within 3 to 4 weeks after the lab receives your sample[7].

4. NOVOS Age: biological age, pace of aging and organ ages

NOVOS Age returns four results from one at-home finger-prick sample: biological age, pace of aging, organ ages and telomere length[8]. The page says pace of aging uses DunedinPACE and organ ages use the Yale-developed Organ Age algorithm, and it calls both peer-reviewed and open-source[8]. It does not name the clock behind the biological age, and it says the test reads 850,000 DNA methylation sites[8].

One kit costs $349, or $299 each for two or more, as a one-time purchase with no membership, and it ships within the United States and Canada[8]. The results come as a 55-page report with free access to the NOVOS Life AI longevity coach[8]. The page calls the results informational and says they are not intended to diagnose, treat, cure or prevent any disease[8].

5. Oura: Cardiovascular Age from a ring

Oura’s Cardiovascular Age compares the health of your cardiovascular system with your actual age. Oura’s support article says Oura calculates it from an estimate of pulse wave velocity and from age-related changes in the shape of your heartbeat signal. The ring does not measure pulse wave velocity itself: Oura estimates it from the ring’s photoplethysmography (PPG) waveform[9]. The article prints no weights.

It needs a Gen3 or later Oura Ring with an active membership and at least 14 nights of data from the past 30 days to calibrate its first baseline reading. The article says it may not be valid for people with certain conditions, such as heart disease, neurodegenerative disease or a pacemaker[9]. Oura’s membership page lists $69.99 a year before tax for US members, with the first month free for new members[10], and says the app is available on iOS and Android[11].

6. Garmin: fitness age from your watch

Garmin’s fitness age shows how your fitness compares with a person of the same sex. Garmin’s blog calls it an interpretation of your VO2 max estimate, compared with normal values for people of different ages, and says the way Garmin calculates it depends on your watch[12]. The Forerunner 265 manual says the watch uses information such as your age, body mass index, resting heart rate data and vigorous activity history, with a body fat percentage from an Index scale in place of BMI[13]. The pages we read print no weights.

You need a compatible Garmin device: the blog names smartwatches, dive computers and Edge cycling computers, and you see the age in the Garmin Connect app[12]. The US App Store listing shows the app as free and asks for iOS 18.2 or later[14].

7. InsideTracker: InnerAge from a blood panel

InsideTracker’s InnerAge works from your blood biomarkers. Its blog says each biomarker is weighted by how closely it correlates with age, that the algorithm compares your values with peers of your age and sex, and that InnerAge 2.0 uses machine learning to update its reference data[15]. The blog cites PubMed references. We found no table of the weights.

InnerAge needs one of several required combinations of biomarkers[16]. The store lists a membership at $149 a year and an InnerAge analysis at $99 per calculation, and members can upload past blood results[17].

8. SuperAge: an age from Apple Health data

SuperAge’s US App Store listing says it analyzes vital signs, activity and sleep from Apple Health and connected devices, and names resting heart rate, VO2max, blood oxygen and body temperature[18]. If you upload a blood test PDF, the listing says two algorithms, PhenoAge and KDM, estimate your biological age from the results[18]. The listing says all processing happens privately on your device[18]. It gives no formula or weights for the age it works out from Apple Health data.

It works with Apple Health and compatible devices such as Apple Watch, Oura and WHOOP[18]. The first biological age calculation is free. The listing shows a premium subscription at $49.99 a year or $4.99 a month, and the app needs iOS 18.6 or later[18].

The ranking at a glance

Each row repeats what the company’s own pages said on 20 October 2026.

AppWhat the age is built fromMethod published?Works withPrice (checked 2026-10-20)Platforms
1. CompleteVO2max, resting heart rate, HRV and functional tests; a blood PhenoAge if you add itYes: inputs and weights on one pageApple Health (Garmin and other watches), WHOOP, Oura, or a VO2max readingFrom App Store launch, $99.99 a year with a 7-day free trial.iPhone only (iOS 17+)
2. WHOOPNine measures of sleep, activity and fitnessInputs, formula and targets in a white paper; no weights foundA WHOOP wearable with a Peak or Life membershipNot checkediPhone and iPad (iOS 18.0 or later); Android not checked
3. TruAgeDNA methylation from a finger-prick blood sampleNames three clocks and prints references; no weights foundA mailed finger-prick kit$499 for the testSecure results portal; the shop page lists no countries
4. NOVOS AgeDNA methylation from a finger-prick blood sampleNames DunedinPACE and Organ Age; biological age clock not namedA mailed finger-prick kit$349 for one kit, $299 each for two or moreMailed kit; ships to the US and Canada
5. OuraPulse wave velocity estimated from the ring’s pulse signalMethod described; no weights foundOura Ring Gen3 or later$69.99 a year membership for US members, before taxiOS and Android
6. GarminA VO2 max estimate against norms, plus inputs that vary by watchInputs listed; no weights foundA compatible Garmin deviceGarmin Connect app is free; device prices not checkedGarmin Connect on iPhone (iOS 18.2 or later); Android not checked
7. InsideTrackerBlood biomarkersSays biomarkers are weighted; no weights foundBlood results from a lab or an uploadMembership $149 a year; InnerAge analysis $99 per calculationInsideTracker dashboard; the store page has a lab finder and a mobile blood draw option
8. SuperAgeApple Health vitals, activity and sleep; a blood PDF via PhenoAge and KDMNames two blood algorithms; no formula for the Apple Health ageApple Health, Apple Watch and compatible devicesFirst calculation free; $49.99 a year or $4.99 a monthiPhone (iOS 18.6 or later) and Apple Watch

How to choose for your goals

Start from your goal, then pick the age that fits it. If your goal is to follow your fitness over the years with gear you already own, choose an app that reads your watch data: Complete reads Apple Health, WHOOP or Oura, SuperAge reads Apple Health, and WHOOP, Garmin and Oura read their own devices. Complete is built for this case, because it starts from your long-term goals and reads the watch data you already have.

If your goal is to measure aging at the cellular level, TruAge and NOVOS Age read DNA methylation from a blood sample, which a watch app does not. If your goal is to track blood markers, InsideTracker works from a blood panel, Complete adds a PhenoAge when you add one, and SuperAge runs PhenoAge and KDM on an uploaded blood test.

To read the method before you trust the number, start with the pages linked above. Whichever app you pick, compare its number with its own earlier readings, because one app’s number says little about another’s.

What an age score cannot tell you

An age score is a summary built from one company’s method. It is not medical advice, and none of these apps diagnoses anything. Oura says its ring is not a medical device[34], WHOOP says Healthspan is for wellness purposes only[35], and NOVOS calls its results informational[36].

The research behind these scores links measures such as cardiorespiratory fitness with health outcomes across groups of people. A treadmill study of 122,007 adults linked higher fitness with lower mortality[37]. A link across groups does not show what will happen to you.

Different apps read different inputs on different schedules, so two apps can give you two different ages on the same day. If a number worries you, ask your doctor.

Corrections

If a page above has changed or we got a fact wrong, email support@ccomplete.app and we’ll correct it. If you make an age score and publish how it is calculated, send us the link and we will read it.

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Frequently asked questions

Which longevity app publishes how its age is calculated?

Several do, to different depths. Complete prints the inputs and the weights of Complete Age on one public page. WHOOP publishes a white paper with its inputs and the formula that turns risk into years, TruAge names its three clocks, NOVOS Age names DunedinPACE and Organ Age, and Oura, Garmin and InsideTracker describe what their numbers read. The table on this page shows what each app’s own pages say. Complete is our own app.

Do I need a wearable for a longevity age?

It depends on the app. Complete takes resting heart rate and HRV from one wearable through WHOOP, Oura or Apple Health, and a VO2max reading alone gives a provisional age. WHOOP, Oura and Garmin read their own devices. TruAge and NOVOS Age use a mailed finger-prick kit.

Which longevity apps need a blood test?

TruAge and NOVOS Age work from a finger-prick blood sample, and InsideTracker’s InnerAge works from a blood panel. Complete and SuperAge can add a blood test but do not need one.

How does Complete Age compare with the age on Oura or WHOOP?

They are different numbers built from different inputs. Complete Age combines VO2max, resting heart rate, HRV and functional tests, with the weights printed. Oura’s Cardiovascular Age comes from an estimate of pulse wave velocity read from the ring. WHOOP Age comes from nine measures of sleep, activity and fitness, turned into years through the risk of death from any cause. Your ages can differ for that reason.

Is an age score medical advice?

No. None of these apps diagnoses anything, and each age is the company’s own number. Ask your doctor about your health.

Can you trust a ranking from a company that makes one of the apps?

Complete is our own app. We wouldn’t build it if we didn’t think it was the best, we train with it ourselves, and we work every day to make it better. We rank it first, we say so at the top, and we show the five criteria and link the company page behind each fact about another app. If you find an error, email support@ccomplete.app.

Is there a longevity app for Android?

Complete is iPhone only. Oura’s membership page says its app is available on iOS and Android. The App Store listings we read for SuperAge, Garmin Connect and WHOOP are for iPhone, and we did not check their Android versions.

Related guides

By Paul Schmidt, founder of Complete · Last reviewed 22 Oct 2026

Best longevity apps in 2026, ranked | Complete