gist age

your real age, calculated on your phone, no accounts, no subscriptions, no servers, 100% private

DATA: HEALTHKIT

STORAGE: ON-DEVICE

NETWORK: NONE

01 Sleep — 7.8 h

02 HRV — 58 ms

03 VO2 max — 46

What Gist is and what it does

Everything runs on the phone. No account, no server, no analytics. Delete the app and the data is gone with it.

Calculate your true age from 20 health metrics in Apple Health. See exactly how many years younger or older your body is.

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

Four scores: sleep, activity, heart, body. Open any one to see which metric is dragging it down and by how much.

One data point a week, kept for a year. A trend line shows where the number is going and a radar shows which of the 20 metrics moved.

Each week Gist names your weakest category and your two lowest metrics, and says what to do about them.

Demo