Period Tracker by Sunflowr is an excellent period tracking app for Android. With an easy-to-use and discreet interface, it allows you to track your periods, daily moods, health symptoms, notes, and even the weather, so you can see how they correlate to your cycle days.

The app offers a variety of features, including predicted periods and fertility days, which is essential for planning dates and vacations, and avoiding unpleasant surprises. It also provides various beautiful themes, fonts, mood and symptom icons to match your personality or mood.

Moreover, you can track your weight, temperature, medications, and pregnancy. You can take daily photos to remember each day, and the app offers reminders for upcoming periods and fertile days. It also has graphs for fertility, temperature, weight, moods, and symptoms against the period days, as well as graphs for period duration and cycle length.

Overall, Period Tracker by Sunflowr is an excellent app that gracefully tracks periods and provides a wealth of features for its users.