Know when to eat.
Know when to stop.
WindowEat turns intermittent fasting into one calm decision a day. No accounts to fill out, no friction between you and your timer — just a window, and the discipline to close it.
This is what thousands of phones are tracking right now — yours could be next.
Three taps. One window.
No onboarding quiz that takes longer than the fast itself. Pick a plan, activate your window, and start tracking immediately.
Choose a protocol
Select one of six science-backed fasting schedules, from beginner-friendly 16:8 to advanced One Meal a Day.
Set your window
Align the eating period to your daily routine — starting at noon, early morning, or late evening.
Watch your core morph
Start the fast. Watch the interactive 3D sphere morph, the metabolic stages transitioning in real time.
What's happening inside, hour by hour
Every fast moves through the same six stages. WindowEat names them as they happen, so the wait has a story instead of just a number.
Six windows. One that fits you.
Fasting isn't one-size-fits-all, and your tracker shouldn't pretend it is.
Leangains
Eight hours on, sixteen off. The default for a reason — it fits around a normal workday without a second thought.
Step Up
A tighter window for people who already have 16:8 on autopilot and are ready for the next level.
Warrior
One real meal, one small window. High discipline, high payoff — not where you start.
Gentle Rhythm
Gentle enough for daily life, structured enough to matter — a comfortable way into fasting.
Circadian
The original fast. Stop eating after dinner, start again after breakfast. Nothing dramatic.
One Meal a Day
The whole day distilled into a single sitting. Simple to say, demanding to live.
Your data never leaves your pocket.
WindowEat stores your fasting history, streaks, and timings locally, on your device, by default. No account required, no profile to build before your first fast.
If you want it, optional encrypted sync keeps your streak safe across devices — opt in whenever you're ready, never before.
A new note waits for you every morning
Open WindowEat tomorrow and the insight changes — pulled from a rotating science library, never the same tip twice in a row.
"Autophagy doesn't switch on like a light. It ramps — which is exactly why the back half of your fast matters more than the first."
Your next window opens whenever you're ready.
No setup marathon. Pick a protocol, start the ring, and let the hours do the explaining.
Start Your Fast Free →