16:8, 18:6, OMAD… tired of doing the math every time to know how many hours into your fast you are? Simple Fasting is a free intermittent fasting timer with no sign-up — pick a plan, tap start, and watch your progress on a custom circular ring while your fasting history and weight trend are tracked for you.
⏱️ Preset fasting plans
Choose from 16:8 / 18:6 / 20:4 / OMAD (23:1) / Custom and start right away. Forgot to log your start time? You can edit it later.
🔵 Circular progress ring
See elapsed time, time remaining, and progress at a glance on a smoothly animated ring, along with body-response stage milestones.
🔔 Stage reminders
Get local notifications for when to start fasting, when you hit your goal, and when you reach each stage — toggle each reminder type on or off.
📊 History & stats
Review completed sessions as a list, a weekly bar chart, and a monthly heatmap. Log your weight alongside it to see a line chart of your trend.
📱 Home screen widget
Check your current fasting elapsed/remaining time and progress right from your home screen — no need to open the app.
🌏 Korean / English support
Pick your preferred language right in Settings.
🔒 Privacy-friendly
No sign-up or login needed. All fasting and weight records stay on your device and are never sent to any server.
Note: The fasting-stage information shown in the app is general reference information, not medical advice.
No sign-up, no subscription — start today with Simple Fasting.
Intermittent fasting timer with a progress ring, history/weight stats & widget