Libre Fasting vs Abstia

Libre Fasting is a free, open-source fasting tracker built for clarity and privacy. No ads, no accounts, no subscriptions. Your data stays on your device. Start a fast in seconds with common protocols (16:8, 18:6, 20:4, OMAD, 24-72 hours) or set a custom duration. See real-time progress, edit or end a fast anytime, and optionally log weight and body fat at start/end. Features: - Quick start with your default fast type - Flexible fast types and custom durations - Real-time timer and progress ring - Optional reminders and notifications - History with completion details and repeat fasts - Export your fasting history to CSV - Fasting stages timeline and curated learning resources - Light/dark themes and accent colors Libre Fasting does not provide medical advice. Consult a qualified professional before making health decisions.

Intermittent fasting, without the guesswork. Abstia is a privacy-focused intermittent fasting tracker that shows you what your fast is actually doing - featuring a one-tap timer, real-time metabolic stage tracking, and an AI coach that learns from your history. No ads. No paywalls. Works fully offline. WHY ABSTIA IS DIFFERENT Most fasting apps just count down a clock. Abstia shows you what’s happening inside your body, helping you understand each phase of your fast from fat-burning to autophagy. REAL-TIME METABOLIC STAGE TRACKING • Visual metabolic ring guides you through each stage: fed state, post-absorptive, fat-burning, ketosis, and deep ketosis. • Know exactly when you enter ketosis and when autophagy begins. • Gain actionable insights into your body's physiology. FASTING TIMER & CUSTOM SCHEDULES • Start any fast in a single tap. • Choose popular protocols: 16:8, 18:6, 20:4, OMAD, ADF, or custom windows. • Flexible timer editing lets you adjust start and end times anytime. PERSONALIZED FASTING COACH • Learns from your streaks, energy levels, and consistency to give custom advice. • Celebrates your milestones and helps you get back on track when you stumble. BIOFEEDBACK & HEALTH LOGGING • Track mood, hunger types, and energy levels after each fast. • Uncover patterns: find out which fasting window yields your peak focus and energy. • Sync seamlessly with Apple Health to pull in weight, calories, and macros automatically. • View your estimated TDEE and calorie balance without manual logging. HISTORY, HEATMAP & STREAKS • Visualize your journey with a calendar heatmap. • Track your longest fast, current streaks, and monthly consistency. WIDGETS & APPLE WATCH • Track your fast directly from Home Screen and Lock Screen widgets. • Stay updated on your current metabolic stage via the Apple Watch companion app and Watch complications. OFFLINE-FIRST & 100% PRIVATE • Track fasts anywhere, even without internet access. • No account required to start. • Your data remains yours: zero ads, zero data selling, and no third-party tracking.