iOS App · Mortality Tracker

Your time is finite.
Stop wasting it.

A research-backed mortality tracker powered by CDC NCHS actuarial tables and your real-world Screen Time data.

Download on the App Store
The brutal reality

Your remaining years,
laid bare.

Of your remaining years, only a fraction is truly yours. Death Clock reveals how your daily habits — media consumption, sleep, and inactivity — shave years off your back end.

4.7

Average years of genuinely free time in a lifetime, after sleep, work, and daily obligations.

64%

Of that free time consumed by screens & media at the average American's usage rate.

BLS Time Use Survey 2022
+3.4 yrs

Potentially added back with consistent exercise and better sleep habits.

BMJ Medicine 2026
Automation

No manual logging.

Death Clock syncs with Apple Health and Screen Time to update your mortality stats in real-time. Open the app — your data is already there.

01

Apple Health

Sleep duration, heart rate, and activity data feed directly into your actuarial model. Every workout is counted toward your projected lifespan.

02

Screen Time

Your real daily screen usage maps to peer-reviewed mortality research automatically, every day. No input required.

03

CDC NCHS Actuarial Tables

Your baseline life expectancy starts from the latest CDC National Vital Statistics — the same mortality data used by insurance actuaries.

04

Live Recalculation

As your habits change, your projected lifespan updates. Build better habits and watch the clock tick forward.

Scientific credibility

Every number has a citation.

No pseudoscience. Every calculation derives from published, peer-reviewed research or official government mortality data.

CDC · NCHS

National Vital Statistics

Life tables and cause-of-death statistics for actuarially accurate baseline life expectancy calculations.

The Lancet · 2018

Screen Time & Mortality

Prospective cohort data linking leisure screen time to cardiovascular mortality risk in adults.

BMJ · 2018

Sedentary Behaviour

Meta-analysis quantifying the dose-response relationship between sedentary time and all-cause mortality.

Windred / LSE · 2024–26

Sleep Regularity Index

UK Biobank analysis showing sleep regularity predicts mortality independently of duration.

Privacy first

Your health data never
leaves your device.

Your Apple Health and Screen Time data stays on your iPhone. No accounts. No tracking. No cloud.

On-Device Only

All calculations run locally. No health data is ever transmitted to any server.

No Accounts

No sign-up, no email, no login. Open the app and start immediately.

No Tracking

Zero third-party analytics. Zero advertising SDKs. Your habits are not a product.

Delete Anytime

Remove the app and all data is gone. No residual cloud storage.

Medical Disclaimer

All figures are statistical estimates based on population averages. This app is for self-reflection and educational purposes only — not medical advice. Consult a qualified healthcare professional for health decisions.

The clock is already running.

Find out exactly how much time you have — and what you're doing with it.

Download on the App Store