Health & Fitness · Lifetimer

Your biological age, transparently computed.

Lifetimer is a private biological-age dashboard — it reads the Apple Health signals you allow, computes Levine 2018 PhenoAge on-device from your markers, and turns it into a practical healthspan plan with transparent inputs and trend context.

Download on the App Store See the honest limits

iPhoneHealth & FitnessOn-deviceFree to download

Biological age — today

on-device estimate

−3.2yrs vs chronological

9 markers

PhenoAge

Sleep

Top lever

Cited

Every action

An estimate from published PhenoAge weights with its inputs shown — not a medical result.

The honest limits

What it does, and what it doesn’t

an estimate with its inputs shown · not a diagnosis

What it does

Reads Apple Health signals you allow: HRV, resting heart rate, sleep, steps, weight, VO2 max
Computes Levine 2018 PhenoAge on-device from your blood markers
Shows ranked lifestyle actions with expected delta, evidence grade and citations
Gives local percentile context without uploading your health data

What it doesn’t

Is a wellness journal and educational tool, not a medical device
Reports an estimate based on published PhenoAge weights — not a clinical result
Doesn’t diagnose, treat, or prevent any condition

Not medical advice. Talk to your clinician.

How it works

Four things, done properly

Apple Health native

HRV, resting heart rate, sleep, steps, weight, VO2 max and supported records — read only with your permission.

PhenoAge, on-device

Biological-age estimates from nine published blood markers, computed on your iPhone with the Levine 2018 weights.

Transparent inputs

Every action is ranked with an expected delta, an evidence grade and citations — nothing hand-wavy.

A dashboard, not a verdict

Local percentile context and a Lock-Screen widget, with the honest framing that biological age is an estimate.

What it keeps

Your records, and where they live

Record	What it is	Where
Health signals	HRV, RHR, sleep, steps, weight, VO2	Read only with your permission
PhenoAge	Levine 2018, from your markers	Computed on-device
Biomarker log	Blood panels & manual entries	On your iPhone

Kept privately

Kept privately, on your iPhone

Computes on-device; cohort context is local, without uploading your private health data
Reads only the Apple Health signals you allow
Pro adds deeper longitudinal tracking and export workflows

Pricing

Free to start, honest about Pro

Free to use

Free to download

PhenoAge dashboard
HealthKit signals you allow
Ranked, cited actions

Lifetimer Pro

$9.99/mo · $59.99/yr

Deeper longitudinal tracking
Export workflows

Renews unless cancelled 24h before period end; manage in App Store settings.

Questions

Straight answers

Is biological age a medical result?

No. Lifetimer is a wellness journal and educational tool. Biological age is an estimate based on published Levine 2018 PhenoAge weights, not a diagnosis.

What data does it read?

Only the Apple Health signals you allow, plus blood markers you enter. Computation happens on-device.

Does my health data get uploaded?

No. Cohort percentile context is computed locally without uploading your private health data.

Lifetimer is on the App Store.

Download on the App Store All Hale Hearth apps

Lifetimer is a wellness journal and educational tool, not a medical device. Biological age is an estimate based on published Levine 2018 PhenoAge weights and should not be used to diagnose, treat, or prevent any condition. Talk to a qualified professional about health decisions.