Track your fasting window with a stunning live timer, watch your body move through anabolic, fat-burning, ketosis and autophagy — and log meals with AI photo recognition.
Every hour of your fast unlocks a new metabolic state. See exactly where you are — from digestion to cellular cleanup.
Every feature is designed around one goal: making fasting feel effortless and informed.
Circular fasting timer with real-time progress, eating window countdown, and custom plans: 16:8, 18:6, 20:4, OMAD.
Your fasting timer lives on your Lock Screen and Dynamic Island via Live Activities — no need to open the app.
Get notified when you shift from anabolic to fat burning, ketosis, or autophagy. Understand what's happening inside.
Snap a meal during your eating window. Instant calorie and macro estimates, logged automatically.
Log water intake with one tap. Track weight trends over time with beautiful charts.
Chat with an AI coach about fasting, nutrition, cravings, or plan adjustments — whenever you need it.
Simple setup. Real guidance from your very first fast.
Age, weight, goals, activity level — so your plan fits your life.
Pick 16:8, 18:6, 20:4, OMAD, or define your own eating window.
Tap once to begin. Watch the ring fill and phases unlock.
Log meals, water, and weight. Chat with the AI assistant anytime.
Join thousands using Nutri AI to fast smarter, understand their body, and stay consistent.
Download on App Store →Medical notice: Intermittent fasting is not suitable for everyone. Do not use this app if you are pregnant, breastfeeding, under 18, have diabetes, a history of eating disorders, or take medications requiring food intake. Consult your doctor before starting any fasting protocol.