Effortless intermittent fasting.
Completely private.
Track your fasts, build your rhythm, and uncover insights — all without an account, server, or tracker.
100% on-device. No account. No tracking.
How it works
Simple by design. Powerful where it matters.
Tap once to start
Set your fasting window and start with a single tap. No setup required.
Live your day
A live timer and Lock Screen widget keep you informed without interrupting your flow.
Discover your rhythm
View streaks, trends, and on-device AI insights that adapt to your personal patterns.
Everything you need
Built for iOS, designed for your daily rhythm.
Live fasting timer
A beautiful progress ring shows exactly how far you've come in your fast. Glanceable at any time.
Advanced analytics
Streaks, completion rates, and weekly charts help you see your fasting rhythm at a glance.
Adaptive AI insights
On-device Foundation Models surface patterns in your data. Private by design — your data never leaves your phone.
Lock Screen & Dynamic Island
Live Activities show your fast progress on the Lock Screen and in the Dynamic Island without opening the app.
Siri Shortcuts
Start or end a fast hands-free. Ask Siri or add fasting actions to your shortcuts.
Privacy-first
No account, no login, no analytics SDKs. Your fasting data is yours alone, stored entirely on your device.
Advanced analytics
See the rhythm behind your fasts
Streaks, completion rate, average length, and weekly trends — the full picture of how your fasting actually goes, computed entirely on your device.
Adaptive insights
Guidance that adapts to you
Personalized insights generated by on-device Foundation Models. Tuned to how you actually fast — never generic tips, and your data never leaves your phone.
Live Activity
Your fast, right on the Lock Screen
Track elapsed time and progress toward your target without unlocking — live on the Lock Screen and in the Dynamic Island.
Start understanding your fasting rhythm
No account. No subscription required to start. Just tap and go.
Coming soon to the App Store100% on-device. No account. No tracking.