Fasting that fits your day
The intermittent fasting tracker that tells you when to eat. One tap to start, nothing to count.
A 24-hour dial showing 16 hours of fasting from 8:00 PM to 12:00 PM, followed by 8 hours of eating.

Fair from the first tap
- Free trialTry it before you pay
- No accountNothing to sign up for
- Works offlineYour data stays on your phone
From first fast to steady routine
Real screens from Bide, from picking a plan to seeing your trend

Start with a plan that fits
Six plans, or your own window

Reach your goal
The ring shows when you’re done

Know what your body is doing
Fasting stages in plain words

Eat without clock-watching
Your window counts down for you

Watch the days add up
A streak that forgives a missed day

See your progress
A trend over weeks, not daily noise
Thirst can feel like hunger
A glass of water often gets you through the last hours of a fast. Bide keeps it on the same screen as your timer.

- 1 tapAdd 250 or 500 ml
- Every drinkLogged by time of day
- Your goalSet for you during setup
Your part takes two taps
A 16:8 day. You start and end the fast, and Bide takes care of everything in between.
Your part
8:00 PM
Start the fast
One tap after dinner. Forgot? Set the real time later.
12:00 PM
End the fast
One tap, a quick note on how you felt, and the day joins your streak.
Bide’s part
Times your fast while you sleep
Keeps counting offline and after a restart, and shows each fasting stage.
Counts down your eating window
Then tells you when your next fast begins.
Intermittent fasting guides
Short, plain answers to the questions people ask before and during a fast.
Getting started
Fasting plans
- 16:8 intermittent fastingThe most popular plan: sample eating windows and what week one feels like.
- Intermittent fasting schedules comparedSix schedules side by side, with sample clock times.
- 14:10: the gentle way to startThree meals still fit. Who it suits and when to move on.
- 18:6 fasting, and 18:6 vs 16:8What two extra hours change, and how to step up without forcing it.
- OMAD and 20:4 fastingHow one meal a day works, and who should skip it.
Water and drinks
Progress and tracking
Fasting questions, answered
Short answers here, with a full guide behind each one.
It means fasting for 16 hours and eating within an 8-hour window each day, for example from noon to 8:00 pm. It is the most popular plan because sleep covers about half the fast.
Learn more: 16:8 schedule and how to startPick an easy plan such as 14:10 or 16:8, choose an eating window that fits your day, stop eating after dinner and drink water until the window opens. Track each fast so you can see the days add up.
Learn more: a five-step beginner guideNo. Plain water has no calories and does not break a fast. Still and sparkling water are both fine, and drinking enough makes fasting easier.
Learn more: lemon water, sparkling water and electrolytesWater, sparkling water, black coffee and plain unsweetened tea. Anything with calories, such as milk, juice, sugar or alcohol, ends the fast.
Learn more: the full list of drinksAbout 2 litres a day is a good starting point, and more if you are active or it is hot. Bide tracks your water next to the fasting timer.
Learn more: a practical daily targetRoughly: fed and digesting (0 to 4 hours), blood sugar settling (4 to 12), fat burning begins (12 to 16), ketosis ramping up (16 to 24), and deeper ketosis after 24 hours. Timing varies by person. Bide shows your current stage on the timer.
Learn more: fasting stages hour by hour14:10 or 16:8. Both fit around a normal day and include a full night of sleep. Bide has six plans and lets you set a custom window.
Learn more: all six schedules comparedNeither is better for everyone. 18:6 is two hours longer; 16:8 is easier to keep up. The best plan is the one you can keep doing. In Bide you can switch plans mid-fast without losing your time.
Learn more: 18:6 compared with 16:8Most people notice changes in hunger and routine within one to two weeks. Changes in weight, where they happen, usually show over four to twelve weeks. Results vary.
Learn more: a realistic results timelineYes. Bide tracks your fast, your water and your weight trend, with no calorie counting, no food logging and no account.
Learn more: what Bide includes and leaves outBide is a subscription with a free trial. There is no free tier. The price and trial length are shown in the app before you subscribe, and you can cancel from Settings.
No. There is no sign-up. Your fasts, water and weight are stored on your phone, and the app works offline.
Start tonight. See the days add up
Finish dinner, tap Start fast, and let Bide tell you when to eat. A month of fasts becomes a streak, a trend and a routine.