Everything you need, nothing you don't
One-tap timer
Start and stop in a single tap, with a live progress ring. Forgot to tap? Edit your start and end times anytime.
Every protocol
16:8, 18:6, 20:4 and OMAD, plus gentle 12:12 and 14:10 windows for easing in or fasting alongside GLP-1 medication. Custom windows too.
Fasting zones
A plain-language timeline of what your body is doing, from fed to fat burning to ketosis. Educational, never medical jargon.
Modern iOS
Live Activity and Dynamic Island countdown, plus lock screen and home screen widgets.
Streaks and stats
A history calendar, streaks, average and longest fasts, and weekly consistency at a glance.
Private by design
Everything stays on your device. No account, no tracking, no ads. Optional Apple Health weight trend.
How it works
Pick a protocol, tap Start when your last bite is done, and watch the ring fill toward your goal. FastTrack shows the fasting zone you're in and counts down to the finish on your lock screen. When you're done, tap End and your fast is saved to History with your streak.
Simple pricing
3-day free trial
no subscription
The free tier includes the full timer, the 16:8 protocol and basic history. Premium unlocks all protocols and custom windows, the fasting-zone timeline, Live Activity and widgets, stats, and the Apple Health weight trend. The lifetime unlock costs less than a single year of the big fasting apps.
Questions
Is there really no subscription required?
Correct. You can unlock everything with a one-time lifetime purchase. Weekly and annual plans exist if you prefer, but they are never required.
Is my data private?
Yes. Your fasting data is stored only on your device. There is no account and no server, and we cannot see any of it.
Is fasting safe for me?
FastTrack is an educational timer, not medical advice, and it never rewards extreme fasts. Fasting is not right for everyone. If you are pregnant, under 18, take medication, or have a history of disordered eating or a health condition, talk to a clinician first.
Does it work offline?
Completely. Everything runs on your iPhone with no connection needed.