An intermittent fasting tracker for iPhone and Apple Watch.
Most fasting apps store how long you’ve been going and count upwards. That is why they lose fasts after a restart, a reboot, or a daylight-saving change — the most common complaint in the category.
Climb never stores elapsed time. It records the instant you started and works everything out from the current time whenever you look. There is no running total to drift, so there is nothing to lose. Change timezone mid-fast and the number stays right.
Seven stages, marked by how long you’ve been fasting. The colour moves amber to green to blue as you climb, on the phone, the widget, the Lock Screen and the watch face alike.
A Live Activity on the Lock Screen and in the Dynamic Island. Home screen widgets. Apple Watch complications on four families. All of them keep counting while the app is closed, because they’re handed the start instant rather than being woken to be told the time.
Start a fast late and move the start time back. Log one you forgot to record. Extend a goal mid-fast. End one by mistake and undo it. Export your whole history, and import it back.
No account. No sign-in. No analytics. No servers — Climb makes no network requests at all. Your fasts live on your device and nowhere else. See the privacy policy, which is short because there is very little to say.