Fast36 vs Fasting Track

Stages, not streaks. Fast36 is the fasting app for people who care about the metabolic arc, not the calendar grid. Track the biochemical progression of a 24 to 72+ hour fast with phase-aware timing, in-the-moment science, and a private record of every session. WHAT YOU GET • Stage-aware timer. Watch your fast move through the four metabolic regimes — glycogen depletion, ketosis, autophagy, deep autophagy — with color-coded thresholds that match real human physiology. • Quick Log for ketones and glucose. Pair every fast with a finger-stick reading. Build a longitudinal record of how your biomarkers respond to each protocol. • Live Activity on the Lock Screen. Current stage, elapsed time, and next threshold — always one glance away. No need to open the app. • Apple Watch companion. Start, monitor, and end fasts from your wrist. Phone, iPad, and watch always show the same session. • History with substance. Total hours, per-stage distribution, per-fast gantt, readings, notes. No streaks. No flame emoji. No celebratory confetti. • The Science reference. Peer-reviewed citations for every stage claim. We tell you what's proven in humans and what's extrapolated from rodent studies, and when evidence is emerging rather than settled. FREE • 36-hour protocol — the namesake fast • Stage-aware timer and Stages reference • History log and HealthKit integration • On-device privacy FAST36 PRO — $14.99 / month or $99 / year • 24-hour reset fasts • 48-hour and 72-hour extended protocols • Custom fast lengths • Live Activity with stage transitions • Stage-crossing haptics • Apple Watch companion • Quick Log for ketones and glucose • Full history analytics and stage distribution chart • Notes on every fast • Apple Health bidirectional sync • The Science deep-dive with citations WHO IT'S FOR Biohackers running 24 / 36 / 48 / 72-hour protocols. People who want their fasting app to read like a lab notebook, not a game. Anyone who has ever said "autophagy" at dinner and meant it. Not for calorie counting, not for weight-loss streaks, not for "gamified wellness." PRIVACY All fasting data lives on-device. Optional Apple Health sync stays between you and Apple — it does not pass through our servers. No accounts, no newsletters, no behavioral tracking, no third-party analytics. Not medical advice. Extended fasting carries real risks for people with diabetes, eating disorder history, pregnancy, low body fat, or on medications affecting blood sugar or blood pressure. Consult a clinician before attempting any fast over 24 hours. Fast36 Pro subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel from your Apple ID settings. Terms of Use: https://fast36.app/terms Privacy Policy: https://fast36.app/privacy Support: hello@fast36.app

Fasting Track is an intermittent fasting tracker and fasting timer that keeps fasting simple: pick a plan, start the timer and see your progress. No account and no sign-up: your fasting data stays on your phone. Whether you are new to intermittent fasting with 16:8, eating one meal a day (OMAD), following the 5:2 diet or trying a longer fast, Fasting Track gives you a live fasting timer, a schedule that fits your day and an honest log of how it is going. 17 built-in fasting plans The popular intermittent fasting methods and more, including 16:8, 12:12, 20:4 (Warrior Diet), OMAD, 5:2, Alternate-Day Fasting, Eat-Stop-Eat, the 36-hour Monk Fast, Extended Fasting (48–72 hours), Dry Fasting, Ekadashi, Circadian Rhythm Fasting, Daniel Fast, Fat Fasting, Juice Fasting and Bone Broth Fasting. Each plan explains its benefits, difficulty and beginner tips, with links to the research behind it. Prefer 14:10 or 18:6? Create your own fasting plan in seconds. Live fasting timer Start a fast with one tap. A countdown and progress ring show how long you have fasted and how long until your eating window opens. Pause and resume when life gets in the way. The body-phase card shows where you are in your fast (Fed State, Glucose Burn, Glycogen Depletion, Ketosis, Autophagy and Deep Repair) with a source for each phase. Weekly fasting schedule Your fasting and eating windows on a color-coded weekly calendar. For 5:2 and similar plans, pick your own fasting days. Tap any day to see its times or adjust them. Daily log and weight tracking Mark each day completed, partial or missed, and add mood, energy, weight, water, calories and notes. Find food ideas for breaking your fast gently. Missed a few days? Backfill them. Search your full history anytime. Stats that keep you going Current and longest streak, completion rate, average fast length, total hours fasted, a weight trend chart, an activity heatmap and a weekly bar chart, for the last 7, 30 or 90 days or all time. Set goals such as 30 days of 16:8 and watch them fill up. Many people use intermittent fasting for weight loss, and the weight chart shows your real trend. Private by design No account and no cloud sync. Your fasts, logs and weight stay on your phone. Back up to a file and restore it on a new phone, or export your history as CSV. Light and dark themes, and 24 app languages you can switch in Settings. Medical Disclaimer Fasting Track is for general informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. The fasting plans, tips, and health information in this app are not personalized medical recommendations. Always consult your physician or a qualified healthcare provider before starting any fast, changing your diet, or making decisions related to your health — especially if you are pregnant, breastfeeding, under 18, elderly, underweight, diabetic, taking medication, or have any medical condition or eating disorder. Stop fasting and seek medical attention if you feel unwell. Citations to the scientific sources referenced in the app are provided in Settings → About.