Period Diary: Cycle Tracker のアプリ分析 7月28日

YOUR PRIVATE DATA NEVER LEAVES YOUR PHONE. Period Diary helps you track your menstrual cycle with privacy at the center. No account. No sign-up. No personal data collection. Your cycle data stays on your phone. Track what matters: Period start and end dates Cycle length and trends Ovulation day and fertile window estimates Daily symptoms, mood, flow, and notes Calendar view for a clear cycle timeline Reminders for upcoming period and ovulation days Built for clarity and control: Fast daily logging Easy-to-read calendar and cycle insights Helpful predictions based on your logged history Simple experience without unnecessary complexity Privacy-first by design: No account needed No personal profile required No exporting your health data to external servers Your entries remain on your device Whether you want a simple period tracker, an ovulation calendar, or a cycle log with symptom tracking, Period Diary gives you useful insights while respecting your privacy.