gist

Know your biological age

Your chronological age is just a number. Gist analyzes your Apple Health data to reveal how fast your body is actually aging. 100% on-device, no accounts, no analytics, no data leaves your phone.

What Gist Does

A minimal app that turns your health data into actionable insights about aging.

Biological Age

Calculate your true age based on 30+ health metrics from Apple Health. See exactly how many years younger or older your body is.

Pace of Aging

Are you aging faster or slower than normal? Track your pace from -1x (reverse aging) to 3x (accelerated).

Category Breakdown

See scores for Sleep, Activity, Heart, and Body. Understand exactly which areas are helping or hurting your age.

Weekly History

Track your Gist Age over time with weekly data points, trend charts, and radar breakdown. Spot patterns in your health.

Weekly Insights

Personalized tips highlighting your weakest metrics and how to improve. See what's working and what needs attention.

Privacy First

All data stays on your device. No accounts, no uploads, no tracking. Your health data is yours alone.

See It In Action

A clean, minimal interface that puts your health data front and center.

Demo