Mooneva is a private, fully offline period and cycle tracker. All data stays on your device — no account, no cloud sync, no ads. <b>Features</b> <ul> <li>Period and cycle tracking with predictions</li> <li>Fertile window and ovulation estimates</li> <li>Daily log: mood, symptoms, flow intensity, discharge</li> <li>PMS window warnings</li> <li>Trends and cycle history</li> <li>Clinical report export</li> <li>Discrete mode (disguises app icon)</li> <li>PIN lock with configurable timeout</li> <li>Reminder notifications</li> <li>Birth control mode (hides fertile window)</li> <li>Fully offline — no internet permission required</li> </ul> <b>Privacy</b> No data ever leaves your device. No analytics, no tracking, no third-party services. <b>Open Source</b> Licensed under GPL-3.0. Source code available on GitHub.