Fasting Tracker: FableFast

Fenster is a fasting timer and tracker that keeps things simple: start a fast, see time left, log when you’re done. No account, no sign-up—your data stays on your device.

TRACK YOUR FASTS • Choose your window (16:8 free; 12:12, 14:10, 18:6, 20:4, and custom with Premium) • See time remaining and fasting stages (fed, fat burn, autophagy, etc.) • Add notes when you finish a fast • Full history with calendar and session cards

STAY ON SCHEDULE • Daily reminder to start your fast (set your own time) • Optional stage notifications at key milestones (Premium) • Gentle follow-up if you miss a fast (Premium)

YOUR DATA, YOUR DEVICE • Everything stored locally—no cloud account required • Export your history as CSV (Premium) • Privacy-first: we don’t collect your personal information

MORE WITH PREMIUM Unlock all fasting plans (including custom hours), full statistics and milestones, CSV export, stage reminders, and gentle follow-ups. Monthly, yearly, or one-time lifetime—choose what fits you.

WIDGET See time left or “Fasting done” on your home screen. Tap to open Fenster.

DESIGNED FOR FOCUS Clean, dark interface so the timer is easy to read day or night. Built for people who want to track intermittent fasting without extra clutter.

Download Fenster and start your next fast in seconds.