Fasting Tracker — IF, Ketosis & Autophagy

The intermittent fasting tracker built for your wrist. Watch your biological phase shift in real time — from Fed State to Fat Burning, Ketosis, and Autophagy — as the progress ring fills toward your 16:8, 18:6, or 20:4 goal. No phone required, no account, fully offline. FEATURES • Live phase tracker: Fed State → Fat Burning → Ketosis → Autophagy → Peak Autophagy • Animated progress arc — fills second by second as your fast advances • Countdown to the next metabolic milestone • 7-day fasting history chart — see your consistency at a glance • Lifetime stats: total fasts, longest fast, average, streak • Glance view — check your fasting status without opening the app • Flexible plans: 16:8, 18:6, 20:4, OMAD, or custom target • Forgot to stop? Set the exact time you finished — adjust up to 16 hours back • Vibration the moment your target fast is complete • Runs offline — your data never leaves your watch FASTING PHASES Fed State (0h) · Digesting (4h) · Fat Burning (8h) · Crossover (12h) · Ketosis (14h) · Autophagy (20h) · Peak Autophagy (24h+) PERFECT FOR Intermittent fasting, 16:8 beginners, experienced OMAD practitioners, keto + IF combos, and longevity-focused fasters chasing autophagy benefits. TRIAL & PRICE 72-hour free trial · Unlock forever for $2.99

- Added smart reminders: a gentle buzz 15 min before your eating window closes, and another the moment you hit your fast goal. Toggle them on/off in settings. - Forgot to stop your fast? You can now set the exact time you finished — adjustable up to 16 hours back (was 3h), with a new HH:MM picker that won't let you pick a time before your fast started. - Pick the exact stop time — new step-by-step HH:MM picker. Adjust the hour first, then the minute; the part you're editing is highlighted in yellow so you always know what's changing. Wider time range — set a stop time from up to 8 hours in the future to 16 hours in the past (was just 3 h back). Useful whether you forgot to stop hours ago or want to plan when to break. - Safer — no zero-duration fasts — the picker blocks any stop time earlier than when your fast started, so an accidental pick can't wipe a real fast. - Simpler stop menu — "Now" or "Select exact time" instead of a long list of fixed offsets. May 10, 2026 - Added support for 17 new devices: Approach S50, Approach S70 (42mm/47mm), D2 Air X10, D2 Mach 1, D2 Mach 2, Descent G2, Descent Mk3 43mm, Descent Mk3i 51mm, Forerunner 255s, Forerunner 255s Music, Forerunner 265s, Instinct Crossover AMOLED, MARQ (Gen 2), MARQ (Gen 2) Aviator, fenix 7 Pro Solar no-WiFi, fenix 7X Pro Solar no-WiFi Bug Fixes - Fixed a potential crash when week history data became inconsistent in storage - Fixed glance showing "0s until done" for open-ended fasts (no target set) -- now correctly shows elapsed fasting time May 14, 2026 - 7-day stats fix: the weekly screen now shows this week's fasts, average, and best — not lifetime numbers. - New 22:2 fasting plan. - Fast start hour expanded to all 24 hours (morning fasters, you're welcome). - Stop menu now shows your elapsed time so you know exactly where you stand. - Dark background on the time picker (no more blinding white flash on AMOLED). - Improved settings reliability on Android. May 16, 2026 - Minor UI improvements - Fixed text clipping and layout overflow on Instinct 2/2X by simplifying all views and the glance for the 176x176 screen. May 18, 2026 - Added support for Forerunner 70 May 23, 2026 - Onboarding - First launch now walks you through a quick 3-step setup — pick your language, choose your fasting duration, and set what time your fast starts. No digging through settings on day one. - Full app translation - The app is now available in 13 languages: English, German, French, Spanish, Italian, Portuguese, Russian, Ukrainian, Polish, Dutch, Turkish, Czech, and Swedish. All screens, menus, and notifications follow your language choice. June 7, 2026 - Extended fasting support — Fasting beyond 24 hours no longer breaks your streak. The app now recognizes that a long fast spans multiple calendar days and counts it correctly. - New fasting stage: Deep Fast (36h) — After Peak Autophagy (24h), you'll now see a countdown to the Deep Fast stage at 36 hours, with a milestone alert when you reach it. June 11, 2026 - Added 36:12 fasting plan — fast for 36 hours, eat within a 12-hour window. Select it in Settings under Fast Duration.