Features
03- 01
A plain dial
Time elapsed, time left and your current phase at a glance, with home screen widgets and reminders for the start and end of each fast.
- 02
Fasting phases
A 10-phase timeline of what typically happens as a fast goes on, from glycogen use to ketosis, and the clock keeps running through 24, 36 or 72 hour fasts.
- 03
Full history, free
Every fast, streak and stat stays in your history at no cost, with weight, mood and glucose logs and a CSV export.
How it works
03- 01
Pick a plan
Choose 16:8, 18:6, 20:4, OMAD or your own fasting target.
- 02
Start the fast
One tap starts the timer. The dial shows how far along you are and which phase comes next.
- 03
Keep the record
Each fast lands in your history with streaks and stats, ready to export whenever you want.
Honest by design
Plainfast opens with the timer, not with a quiz or a paywall.
- No account and no sign-up quiz.
- No ads.
- Your fasts stay on your device; analytics only if you opt in.
- Free core with full history. Premium (monthly, yearly or a one-time lifetime unlock) adds custom presets, past fasts and correlation charts.

