Everything you need. Nothing you don't.
Built for people who want a fasting tracker, not a lifestyle app pretending to be your coach.
Biological Timer
A circular progress tracker that tells you exactly how long until your next meal — and what metabolic stage you're in.
Metabolic Stages
See when your body enters ketosis, autophagy, and immune rejuvenation. Real science, not guesswork.
Weight Tracker
Log your weight and watch the trend over time. Simple charts. No clutter.
5 Themes
Sage Mode, Deep Focus, Sunset Fast, Vapor Wave, Neon Nights. Dark and light modes for each.
Smart Notifications
Gentle reminders when it's time to start or break your fast. Nothing excessive.
Home Screen Widgets
Check your fasting status at a glance with small and wide widgets. No need to open the app.
See it in action
Four screens. That's the whole app. Timer, history, weight, settings.
Free is generous. Premium is worth it.
Every core feature works without paying a thing. Premium removes ads and unlocks extras for those who want more.
| Feature | Free | Premium |
|---|---|---|
| Biological fasting timer | ||
| Metabolic stage tracking | ||
| Fasting history & logs | ||
| Weight tracker | ||
| Home screen widgets | ||
| Smart notifications | ||
| Dark & light mode | ||
| Ad-free experience | ||
| Weight trend chart & log reminder | ||
| 4 additional color themes | ||
| Multiple fasting plans | ||
| Data backup & restore |
Make it yours
Five color themes. Light and dark modes. Pick what feels right.