Description
Transform your fasting journey with personalized guidance tailored to YOU
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.
