Intermittent vs Intermittent

Intermittent is the fasting tracker built for people who take fasting seriously. Most fasting apps start a timer and leave you guessing. Intermittent tracks every stage your body moves through so you always know what is happening inside, why it matters, and what comes next. Here is how Intermittent helps you get there: Track your fast in real time. One tap starts your fast. Watch your body move through every metabolic stage, from early fat burn to deep autophagy, with science-backed descriptions of exactly what is changing at every hour. Know what is happening inside your body. Fed state. Fat burning. Ketosis. Autophagy. Intermittent tells you which stage you are in and what your body is doing right now. This is the information that keeps you going when fasting gets hard. Built around your goals. Choose from 12:12, 16:8, 18:6, 20:4, OMAD, 24 hours, or set a fully custom window. Whether you are fasting for weight loss, mental clarity, or metabolic health, Intermittent keeps you on track. Build the habit that sticks. Streaks, calendar history, and progress tracking turn fasting from something you try into something you do every single day. Everything included. Advanced metabolic insights, personalised stage breakdowns, guided plans, challenges, progress photos, data export, and article notifications are all part of your subscription. Whether you are just starting out or already deep into your fasting practice, Intermittent gives you the clarity and structure to keep going. Intermittent is a subscription app. A 7-day free trial is available on the annual plan. Pricing is shown in your local currency on the subscription screen inside the app. Subscription options: Intermittent Pro Monthly: auto-renewing monthly subscription Intermittent Pro Annual: auto-renewing annual subscription, includes a 7-day free trial for new subscribers Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period, at the selected subscription price. You can manage and cancel your subscriptions in your App Store account settings after purchase. Any unused portion of a free trial, if offered, will be forfeited when you purchase a subscription. Privacy policy: https://getintermittent.com/privacy Terms of Use (EULA): https://getintermittent.com/terms

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.