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Ultimate Fasting is an intermittent fasting tracker that respects four religious fast traditions and reads your food log to verify what actually went into the fast. Core features:
Smart Coach for every fasting phase. Track your cycle from digestion through fat burn, ketosis, and autophagy with a deterministic rule-based coach that adapts to your weight trend, sleep, and step count. Three coach personalities (Motivating, Scientific, Calm) — no LLM, no monthly token bill, predictable on-device behavior.
Health Connect, MyFitnessPal, Yazio, Wear OS — all in sync. Seamless integration with Health Connect for steps, weight, active calories, and (pending Google's permission review) live nutrition from MyFitnessPal, Yazio, Cronometer, and Samsung Health. First-class Wear OS companion lets you start, stop, and monitor your intermittent fasting timer from your wrist.
Personalized daily fasting tips and motivational guidance. Tuned to your specific protocol — 16:8, 18:6, 20:4, OMAD, or a custom schedule you save and reuse — with milestone notifications and progress updates aligned to your weight goals.
Smart meal-break suggestions for your eating window. Food-mode awareness across spiritual practices: three Ekadashi modes (Nirjala · Phalāhārī · Naktabhoji), Orthodox Lenten options, Ramadan suhoor and iftar timings.
Four religious fasting calendars, astronomically and Halachically computed. Hindu Ekadashi with the Vaishnava observance rule cross-validated against drikpanchang.com · Orthodox Christian fasts (Wednesdays, Fridays, four great fasts) · Ramadan plus voluntary Muslim fasts (Mondays, Thursdays, Ayyam al-Bīḍ) · Jewish fast days (Yom Kippur, Tisha B'Av, four minor fasts with Shabbat postponement). All spiritual fasting features free — no paywall on faith.
Built-in fasting community. Monthly seasonal fasting challenges (Spring Detox, Summer Solstice Reset, Easter Challenge, Christmas Spirit), global leaderboards with Google sign-in, achievement badges, and shareable milestone cards designed for Instagram and X.
Animated fasting timer and three home-screen widgets. Glassmorphic Lottie progress rings, fasting-phase visualizations directly around the timer, and three Android
home-screen widgets — compact card, mini tile, and the premium Aurora 4×4 clock.
Smart notifications across watch, phone, and home screen. Reminders for fasting start, fasting end, Ekadashi paran windows, Ramadan pre-dawn closings, and weight-goal check-ins — delivered to your Wear OS watch, phone notification shade, or persistent home-screen widget. Available in 13 languages: English, Bulgarian, German, Spanish, French, Hindi, Japanese, Korean, Dutch, Portuguese, Russian, Chinese, Arabic.
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