My Rhythms: Period & Cycle

My Rhythms is a period-tracking calendar and daily symptom diary built for privacy: no required account, no cloud sync, no social feed. EVERYTHING STAYS ON YOUR DEVICE Cycle and symptom data lives in a local database on your phone. Nothing leaves the device unless you export a backup yourself — one tap to a JSON file, whenever you choose. PHASE AND UPCOMING EVENTS, PREDICTED Mark when your period starts and ends — the app tracks your current cycle day, phase (menstrual/follicular/fertile/luteal), and predicts your next period and fertile window, even if you sometimes miss a day. DAILY DIARY Log discharge, mood, temperature, and a free-text note for the day, tagging built-in or custom symptoms. Days with a diary entry show a small dot on the month calendar. MONTH CALENDAR A clear month grid: period days shaded in a soft accent color, today highlighted, diary entries marked with an indicator. REMINDER A local notification the day before your predicted period start. YOUR OWN AVERAGES Set your own average cycle length and period length — predictions adapt to you, not a generic 28-day assumption. CALM VISUALS, NOT "FLOWERS" A warm wine/aubergine palette instead of the pastel-pink-with-hearts look common in this category. NO ADS No ads, no account. Your cycle and diary data only ever moves via export/import, and you control it. (The app does send anonymous, non-health technical usage analytics — see the Privacy Policy.)