LivaFast is the fasting and liver-health tracker built for one job: helping people with fatty liver disease (NAFLD/MASLD) follow what their doctor asked them to do — and finally see whether it's working. Most fasting apps are disease-agnostic, liver-blind, and locked behind a subscription. LivaFast is the opposite. It's a focused workbench for managing your liver health, it keeps every reading private on your own devices, and there's no subscription. BUILT FOR YOUR LIVER — NOT GENERAL WELLNESS Every feature earns its place by answering a real clinical question. Track ALT, AST, GGT, and the rest of your panel. See raw values against reference ranges and the trend slope across every appointment — so you can tell whether the numbers are actually moving. A SMARTER FASTING TIMER Time your fasts by the five metabolic stages actually happening inside you — glycogen use, fat burning, ketosis, autophagy, and sustained liver repair — with live transitions on the Lock Screen, Dynamic Island, and Apple Watch. Fasting windows stay within sensible, clinician-informed limits. READY FOR YOUR DOCTOR Generate a clean, one-page PDF with your raw labs, fasting adherence, and lifestyle signals — designed to fit a hepatologist's chart. Bring it to your appointment instead of trying to remember six months of numbers. PUT YOUR DATA TO WORK WITH AI YOU TRUST One tap copies a structured summary of your full health context — labs, fasting history, body metrics, and Apple Health signals — that you can paste into the AI assistant you already use. Ask it to spot trends or prep questions for your next visit. LivaFast also includes on-device insights that never leave your iPhone. Nothing here diagnoses — it's written to send you back to your clinician. PRIVATE BY DESIGN Your health data stays on your iPhone and syncs only inside your own private iCloud. No advertising SDKs. No third-party analytics. No data brokers. The developer has zero access to your readings, and on-device AI runs entirely on your phone. Delete everything, permanently, whenever you want. APPLE WATCH, WIDGETS & DEEP HEALTH INTEGRATION Live fasting stage, countdown, and biomarker complications on your wrist — working even without your iPhone nearby. Lock Screen, Home Screen, and Smart Stack widgets keep your current stage and next lab a glance away. LivaFast reads workouts, heart rate, sleep, and active energy from Apple Health automatically — no manual entry. STRUCTURE THAT KEEPS YOU GOING Follow a 12-week liver reset, join a 14-day 16:8 reset or an 8-week recovery challenge, and watch your streak heatmap and daily compliance build. LEARN, LISTEN & STAY MOTIVATED A diagnosis is easier to face when you're not facing it alone. The built-in Health Library pairs hepatologist-reviewed articles on NAFLD/MASLD, FIB-4, and the science — in plain language — with motivational stories that follow people through their fatty liver journey: the plan they chose and how they turned their numbers around, written to keep you going on the hard days. Prefer to listen? A growing podcast library breaks down what fatty liver actually is and demystifies the medical terms on your lab report, so the science goes wherever you do. NO SUBSCRIPTION Pay once. No recurring fees, no paywalled features, no upsells. IMPORTANT LivaFast is a wellness tracking and education tool — not a medical device. It does not diagnose, treat, or cure any condition and is not a substitute for professional medical advice. Always consult your healthcare provider before changing any fasting or health routine. Fasting is not appropriate for everyone; some conditions require physician supervision. Library stories are illustrative and intended for motivation only — individual results vary.