Choose 16:8, 18:6, 20:4, OMAD, or set a rhythm that works for you.
Now on iPhone & Android
Your fasting window, clearly.
Start a fast in seconds from your phone. Track your rhythm, stay consistent, and keep your progress synced—without putting the timer behind a paywall.
Free core timerNo trial wallCloud sync
9:41● ᴡɪɴᴅᴏ•••
TodayFASTING · 16:814:07:321h 52m remaining
Stay hydrated. Stop if you feel unwell.
Your active fast, history, and settings stay synced across your devices.
Clear safety cues and consistency-first insights keep the focus on sustainable habits.
Mobile launch
Windo is coming to your phone.
We’re preparing Windo for iPhone and Android. Your fasting timer and progress will stay right where you need them—in your pocket.