Birthday Manager is an Android application designed to manage birthday information of your family, friends, and colleagues. The app is easy to use and provides multiple options to display the information by selecting all birthdays, birthdays in the current month, or favorite birthdays. It offers a clear interface that allows you to sort the information by date, D-day, name, and favorite.

The app also includes a calendar view and a search function to find a specific name. Birthday Manager has an alarm notification feature that reminds you of upcoming birthdays one day, three days, and seven days before the actual date. You can also add contacts along with their birthday information. The app offers cloud backup and restore services for convenient management of data.

Please note that if you encounter any issues with the app, such as updating the widget, you can adjust the App Settings by excluding it from Power Saving. Additionally, if you are not receiving notifications on Android 13 (T-OS) or higher, you can allow notifications after entering "Settings -> Applications (Apps) -> BirthdayManager."