Fastday: Intermittent Fasting

Intermittent fasting, made simple. Pick your plan, tap start, and the fasting timer does the rest: you always know how long you have fasted, how long is left, and when your eating window opens.

A clear fasting tracker, with nothing that gets in the way: no calorie counting, no account, no ads.

FASTING TIMER

• One tap to start or end a fast, or set the time you really started

• A big ring with the time fasted, the time left and your progress

• A notification when your fasting goal is reached

• A daily reminder to start your next fast

• Home screen widget: your fast at a glance

FASTING PLANS

• 12:12, 14:10 and the popular 16:8, free

• 18:6, 20:4 and OMAD (one meal a day) with Premium

• Extended fasts of 24, 36 and 48 hours, or your own custom fast from 1 to 72 hours, with Premium

• Change your goal during a fast at any time

FASTING PHASES, EXPLAINED

Follow what generally happens in your body hour by hour: blood sugar rises, blood sugar falls, fat burning starts, ketosis, deeper ketosis and autophagy. The timer shows the phase you are in right now.

HISTORY, STREAK AND STATS

• Every fast in your history, editable if you forgot to stop the timer

• Your current streak and your best streak

• Fasting hours of the last 7 days

• With Premium: your full history, total hours, average fast, longest fast and success rate

WEIGHT

Log your weight by hand or import it from Health Connect, and watch your weight curve next to your fasting habit.

PRIVATE BY DESIGN

Your fasts and your weight stay on your phone. No account, no sign-up.

PREMIUM

One yearly subscription with a 7-day free trial, or a one-time lifetime purchase. Premium unlocks every fasting plan, extended and custom fasts, your full history and all statistics.

Intermittent fasting is not suitable for everyone. Talk to a doctor before fasting if you are pregnant or breastfeeding, have diabetes, an eating disorder or any medical condition, or take medication. The information in this app is general and is not medical advice.