Transform your fasting journey with personalized guidance tailored to YOU. Fast 2 Fit is the intelligent intermittent fasting companion that adapts to your unique biology. Unlike generic fasting timers, Fast 2 Fit estimates personalized phase transitions based on your age, gender, activity level, and last meal type — so you get a timeline built around you, not a generic countdown. PERSONALIZED FASTING PHASES Your body is unique. Fast 2 Fit uses a personalized moderator system to estimate when you'll reach each biological phase: Absorption → Post-absorption → Ketosis → Autophagy → Deep Autophagy → Peak Autophagy A young, active person on a low-carb diet may reach estimated ketosis in as little as 5 hours, while others may take 22+ hours. Fast 2 Fit estimates YOUR timeline. EXERCISE INTEGRATION Log a workout during your fast? Fast 2 Fit reads your Apple Health workout data — no manual entry needed — and adjusts your phase timing, since exercise depletes glycogen faster and can speed up the shift into fat-burning mode. FASTING PROGRAMS FOR EVERYONE Choose from popular protocols: • 16:8, 18:6, OMAD (One Meal A Day) • Extended fasts: 24h, 36h, 48h, 72h • Weekly Plans — pre-designed 7-day sequences to automate your habits and keep you on track • Demo mode for testing ON YOUR WRIST TOO Fast 2 Fit includes a full Apple Watch app, so you can start, track, and check your fasting phase right from your wrist — synced automatically with your iPhone. LIVE ACTIVITY & WIDGETS Keep your fast visible without opening the app: add a Home Screen widget, or track your countdown on the Lock Screen and Dynamic Island with Live Activity. STAY MOTIVATED • Streak tracking — build consistency with consecutive day tracking • Streak Preservation — "get back on the horse" logic that recognizes your progress even if you need to scale back a difficult fast, so you don't lose your momentum • Trophies & achievements — earn rewards for milestones • Confetti celebrations — celebrate completed fasts • Smart notifications — get notified when you enter new phases WEIGHT TRACKING Seamlessly syncs with Apple Health to track your weight progress. See your 6-month trend with beautiful charts. INTELLIGENT NOTIFICATIONS • Phase change alerts ("You've entered ketosis!") • One-hour countdown reminders • Eating window reminders to maintain streaks POLISHED DESIGN • High-performance design with smooth animations • Native support for Light and Dark modes • Clean, distraction-free interface optimized for focus PRIVACY FIRST All data stays on your device and in your personal iCloud. No accounts, no servers, no tracking. Fast 2 Fit's phase timelines are personalized estimates based on established fasting research, not a medical measurement — always listen to your body, especially during extended fasts.
