Donate Blood is an Android app developed by the Australian Red Cross Blood Service. It is a free app that makes booking appointments for blood donations easier and more convenient. With this app, users can register to become blood donors, book and manage appointments, and sync them with their calendars to receive reminders.

The app also helps users locate their nearest donor center with opening hours and directions. It keeps track of the user's donation tally and displays the countdown until the next time they can donate. Users can also check their eligibility to donate and find answers to frequently asked questions. Additionally, the app allows users to monitor their health stats like blood pressure. Overall, Donate Blood is a must-have app for anyone who wants to make a positive impact on society by donating blood.