YOYO Cycle Tracker

YOYO Cycle Tracker is a private, local-first period tracker for adults who want a simple calendar, reminders, and trend view without creating an account. Track period start and end dates, flow, symptoms, mood, pain level, and private notes. The app estimates upcoming cycle dates from your local history and keeps the experience focused on personal organization, not medical judgment. Key features - Local calendar for cycle days and estimated upcoming dates - Daily records for flow, symptoms, mood, pain, and notes - Local reminders with private notification wording - Basic trend summaries for cycle length, symptoms, mood, and pain - Privacy Shield page explaining what stays on your device - Pro PDF and CSV export through the Android share sheet - Pro encrypted local backup - Optional Pro upgrade to remove ads and unlock advanced privacy tools Privacy-first boundaries - No account required - No cloud sync - No upload of cycle records, symptoms, mood, pain, notes, reminders, exports, or backups - No cloud AI health analysis - Advertising SDKs are not given your cycle records or private notes Important: YOYO Cycle Tracker is for personal tracking and organization only. It does not provide medical diagnosis, pregnancy judgment, contraception advice, ovulation accuracy guarantees, medicine dosage advice, or any other medical advice. Please consult a qualified medical professional for health decisions.