Ready when you are.
No fast running. Start one in a single tap β no account, no setup.
Fasting
0:00
elapsed
Phase
What's happening
π§ Extended fast guide
Milestones
This fast, hour by hour
Tap any hour for what's typically happening. Drag to scrub.
Calculators
Instant answers, no signup. Every result can become your schedule in one tap.
Your rhythm
Rhythm scoreβ
Windows kept (7d)β
Routine streakβ
Grace shieldsβ
Lifetime fastedβ
π₯ Personal records
Longest holdβ
Hold streakβ
Private β only you see this board.
Calendar
Month
Day
Your plan
π₯ Fitness Mode
The challenge layer: workout logging, fasted-workout bonuses, and duration milestones β on top of the same free app.
π― 7-day hold challenge
Protocol
Eating windowβ
Fastingβ
Week
Weekdays and weekends can differ. Tap a day to set its window.
Pulse & progress
Balance0
LevelTick
This week's questsβ
Settings
Theme
Big type
Reminders
Test notification
What I see
Your data lives on this device only. Clearing browser storage will erase it β export first if it matters to you.