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Set your first fasting window in under 60 seconds. Track your fasts, follow a plan that fits you, and watch your progress add up.
Lose weight, boost your energy and think clearer with intermittent fasting. Get a personalized 16:8 plan, a smart fasting timer, calories and macros from a photo of your plate, and progress tracking, whether you are just starting or already experienced.
Takes 2 minutes · Personalized plan · Science-based
Intermittent fasting (IF) is a time-restricted eating pattern that alternates between periods of fasting and eating. Rather than restricting what you eat, IF focuses on when you eat. During fasting periods, the body shifts from using glucose for energy to burning stored fat, a metabolic state known as ketosis. This process triggers autophagy - the body's cellular cleanup mechanism - which removes damaged cells and promotes regeneration. Its effects reach beyond weight: studies associate intermittent fasting with steadier energy, sharper focus and better metabolic health, which is why more people are asking what fasting does to both the body and the brain.
Research published in the journal Nutrients shows that intermittent fasting improves metabolic health markers including insulin sensitivity, blood pressure, and cholesterol levels (Li et al., 2023). The most popular methods include 16:8 (16 hours fasting, 8 hours eating), 18:6, and 5:2 (eating normally 5 days, restricting calories 2 days).
FastTrack is an iOS app that helps you practice intermittent fasting safely and effectively with a smart timer, a meal scanner that estimates calories and macros from a photo, AI meal ideas, progress analytics, and customizable fasting plans. All health data is stored locally on your device for complete privacy.
Start, pause, and track your fasts with precision. Receive notifications when your fasting window ends and get ready to break your fast mindfully.
Snap a photo of your plate and get calories, macros and a health score in seconds. Every meal you log can sync to Apple Health.
Out of inspiration? Generate a meal idea that fits your fasting window and your goals, with estimated calories and macros.
Ask anything about fasting, cravings or hydration. Your coach knows your plan and where you are in your fast, and answers in seconds.
Visualize your fasting streaks, weight trends, and health improvements. Watch your body transform with detailed charts and insights.
Choose from popular fasting methods like 16:8, 18:6, or create your own schedule. FastTrack adapts to your lifestyle and goals.
A fasting plan built around your goal and your routine. No restrictive diet, no yo-yo effect, a rhythm you can actually keep.
Fewer crashes after meals. A consistent fasting window helps your energy stay level from morning to night.
Many fasters notice better focus during their fast. Research associates intermittent fasting with mental clarity and brain health.
Your health data stays on your device. We never share or sell your information. Complete privacy guaranteed.
Set your first fasting window in under 60 seconds. Track your fasts, follow a plan that fits you, and watch your progress add up.
Science-backed fasting guides, updated regularly.
