Fasting Center

Fasting tracker with real numbers - plan, track, and measure your fast.

Fasting Center is a fasting timer and tracker built around data, not generic guesses. Start a fast, watch your progress on a live ring with fasting stages, and see projections of weight change, fat loss, and energy use - personalized from your own body stats.

TRACK YOUR FAST

- Fasting timer with stage markers - fat burning, ketosis, and more
- Any duration: 12:12 to multi-day extended fasts, or open-ended
- Edit start and end times when life happens
- Projected vs measured weight loss, side by side

PLAN WITH REAL NUMBERS

- Enter your stats and fast length, get a personalized projection before you start
- Estimated total weight change, fat loss, and energy use
- Fine-tune goals for your next fast based on what actually happened

MEASURE YOUR PROGRESS

- Log weight, body fat, waist, ketones, glucose, and blood pressure
- Apple Health sync - weight and body fat flow in automatically
- Import your history from Zero and Easy Fast
- Charts that plot your real history over time
- Daily log for notes, mood, and how you feel

YOUR DATA, SAFE

- Free to use
- No ads
- Optional account with cloud sync and backup - sign in with Apple or Google
- Delete your data and account anytime, completely

Whether you're planning your first extended fast or fine-tuning a routine you've run for years, Fasting Center gives you a clear, data-driven picture of what to expect - and what actually happened.

Fasting Center is a planning and estimation tool. It does not provide medical advice - always consult a healthcare provider before starting an extended fast, especially if you have any underlying health conditions.