Donate Blood is a free iPhone app developed by the Australian Red Cross Society for people who want to donate blood. The app helps users to book and manage appointments for blood donation, and even syncs the appointments with their calendar. Additionally, the app provides information about the nearest Lifeblood donor center along with opening hours and directions. Users can also monitor their health stats, such as blood pressure, and check their eligibility for blood donation. The app keeps a track of the user's donation tally and provides a donation countdown to help users determine when they can donate again. The app also offers answers to frequently asked questions related to blood donation.

The Donate Blood app is an excellent tool for those who want to donate blood and help save lives. With its user-friendly interface and easy-to-use features, it makes the process of booking appointments and managing donations a breeze.