Circadia: Fasting Tracker

Fasting, without pressure. Circadia is a private fasting timer, journal, and educational wellness companion built around your routine. Choose a familiar rhythm or a custom goal from 1 to 24 hours, then adjust, pause, or end whenever you need. FLEXIBLE TIMER - Timed plans and custom goals from 1 to 24 hours - Elapsed and remaining-time views - Pause, resume, edit, or end without losing context - Open Fast mode with a clear safety confirmation and no finish alert - Widgets and Live Activities for glanceable progress PRIVATE WELLNESS JOURNAL - Log completed fasts, hydration, mood, notes, and weight - Review patterns, trends, streaks, and milestones - Honest logging earns recognition; longer fasts do not earn extra rewards - Export your records on supported Apple devices EDUCATIONAL COACH - Ask about meals, hydration, sleep, travel, exercise, and your current timer - Built-in guidance works without an account - An optional downloadable model can select among reviewed presentation styles on your device - Clear boundaries prevent diagnosis, treatment, medication, or dosage advice ON YOUR WRIST Use Circadia on Apple Watch and Wear OS for quick timer controls, hydration logging, and progress at a glance. PRIVATE BY DESIGN Your fasting records and coach prompts stay in app-private storage. Circadia has no account, advertising, behavioral tracking, or third-party analytics. IMPORTANT HEALTH NOTICE Circadia is for adults age 18 and older. Circadia is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Do not fast if you are pregnant or breastfeeding, have a history of disordered eating, or have been advised not to fast. If you have a condition or take medication, consult a qualified healthcare professional. Stop fasting and seek care if you feel unwell.