Intermittent vs Aayu

The intermittent fasting tracker that shows the biology happening inside you in real time: Fed, Lipolysis, Ketosis, Autophagy. Ad free fasting app. No account required. Most fasting apps give you a countdown clock and a streak to protect. Intermittent does something different. It shows you exactly which biological phase your body is in right now, and explains the science behind it with cited primary sources, not marketing copy. If you have ever wondered how to track fasting properly, or what is actually happening during a fast, this is the fasting tracker built for that question. WHY FASTING WORKS Intermittent fasting works because of what happens between meals, not just the absence of food. As your fast progresses, your body moves through distinct phases: burning through glucose reserves, shifting into fat burning lipolysis, entering ketosis, and eventually triggering autophagy, the cellular repair process linked to longevity and metabolic health. Understanding these transitions is what separates intentional fasting from guesswork. Intermittent maps every stage so your goals are grounded in biology, not motivation. KEY FEATURES PHASE AWARE FASTING TIMER A real time timer that tracks six biological phases: Fed, Early Fasting, Lipolysis, Ketosis, Autophagy, and Deep Fast. Each phase links to a free science article with primary sources cited. EVERY FASTING PROTOCOL, ONE APP Supports 12:12, 14:10, 16:8, 18:6, 20:4, OMAD (One Meal A Day), 36 hour, 48 hour, and 72 hour fasts. FREE FASTING SCIENCE LIBRARY A full library of fasting articles covering intermittent fasting, ketosis, autophagy, insulin response, and more. No subscription. No account. No paywall. SMART HYDRATION TARGET A science backed hydration goal that adapts to your weight, sex, age, and fasting duration. WEIGHT AND PROGRESS TRACKING Log your weight after each fast and track trends over time. Includes streak heatmap, phase reach history, and estimated fat vs glucose energy usage. PRIVATE CIRCLE AND END OF FAST REFLECTION Share your fast with a small private group. Applause only responses. No comparison. No gamification. HOME SCREEN WIDGET AND CROSS DEVICE SYNC Keep your fasting timer visible with a home screen widget. Your data syncs across devices privately without third party trackers. WHO IT IS FOR Intermittent is built for adults who want to understand fasting, not be coached through it. If you follow research on metabolic health, read about longevity, or want a fasting routine grounded in biology rather than points or streaks, this app is for you. Suitable for both beginners and experienced fasters. HOW IT WORKS Choose your fasting protocol, from 12:12 to extended fasts Start your timer and track your biological phase in real time Tap any phase to read the science and log your reflection at the end No account required to start. No subscription required to access the library.

Lose weight with intermittent fasting — and see when your body actually switches to fat burning. Most fasting apps show you a countdown. Aayu tracks six metabolic zones in real time, from the drop in glucose through fat burning, autophagy, and renewal. Fasting stops feeling like waiting and starts feeling like progress toward your goal weight. From the moment you begin a fast, Aayu tracks your body's journey through six metabolic zones in real time — from the early transition away from glucose, through the metabolic shift, into fat burning, autophagy, and renewal. At every stage, you'll see where you are, what your body is doing, and what comes next. Fasting stops feeling like waiting and starts feeling like progress. YOUR METABOLIC DISCIPLINE SCORE Aayu distils your fasting practice into a single score built from what genuinely matters: how long you fast, how consistently you show up, how well your fasts align with your natural overnight rhythm, how often you reach the deeper zones, and the momentum of your streak. PLANS THAT MEET YOU WHERE YOU ARE Start gently with 12:12 and progress to 14:10, 16:8, or 18:6 — free, forever, with no hidden limits. Aayu builds your starting plan around your profile, activity, and last-meal time, and includes safety guardrails: gentler plans are recommended for younger users and those at lower body weights. BREAK YOUR FAST PROPERLY How you end a fast matters as much as the fast itself. Aayu includes 30 curated break-fast meals — from steamed idli with coconut chutney to overnight oats and miso soup — each chosen for being gentle on a fasting gut, with an explanation of why it works and protein-forward options to help protect muscle. EVERYTHING ELSE YOU NEED, FREE - Real-time fasting timer with live zone tracking - Hydration tracking with one-tap quick-adds - Automatic step counting - Weight logging with trends - Personalised coaching cards for your first week and beyond - "Does it break my fast?" — a searchable reference for coffee, tea, sweeteners, supplements and more - A Learn library of clear, practical fasting articles - Smart reminders for fast start, milestones, and hydration - Cloud sync and full account deletion, anytime GO DEEPER WITH AAYU PRO When you're ready, Aayu Pro adds: - 30-day and all-time insight ranges - Smart Weight Projection based on your real fasting, weight, and activity data - Monthly PDF reports with score breakdown and next-month plan - Apple Health integration — see how fasting relates to your resting heart rate, HRV, sleep, and body composition - Advanced metrics including fat-burn estimates, deep autophagy hours, and gut rest - Advanced plans: 20:4, OMAD, 36-hour, 5:2, and 4:3 - Custom plans with weekday and weekend variation Pro is available as a monthly or annual auto-renewing subscription, managed through your App Store account. Cancel anytime. PRIVATE BY DESIGN Your health data is yours. Aayu runs on EU-based infrastructure, shows no ads, never sells your data, and lets you delete your account and data from within the app. A NOTE ON YOUR HEALTH Aayu provides general wellness information, not medical advice. Advanced metrics are estimates based on published research, not clinical measurements. Fasting isn't suitable for everyone — if you are pregnant, under 18, underweight, diabetic, or managing a medical condition, consult your doctor before fasting. Always take prescribed medication on schedule. Begin your first fast tonight — and for the first time, watch what your body does with it. Terms of Use : https://www.aayuwellness.app/terms Privacy Policy: https://www.aayuwellness.app/privacy