Birthday Sheriff: Reminder App for Android

A free program for Android, by Birthday Sheriff: Free Birthday Reminder.

What is it about?

This app is all about keeping track of birthdays and other events you want to be notified about. For example, if you want to be notified about your friend's birthday, import his/her name and phone number from your contacts list or add them manually into the calendar. You can even import your friend's birthday from Google Drive.

How does it work?

First, you need to install the app and give it permissions to access contacts and other data from your device. After that, you import contacts and other data into the app, which you can share with friends and family.