BlooDoChallenge is a free Android application developed by 4Girls4Change for blood donors. The app provides various functionalities, including notifying users when there is an urgent need for blood, enabling them to schedule donations, and accumulating points for every donation. Users can then redeem these points for offers from the app's partners or compete in the donor leaderboard. Moreover, the app notifies users about their blood donation validation status and sends a thank you note the next day after donation, as per the law. Additionally, users can manually enter their previous donations, program mobile collections, and check campaign organizers' details. BlooDoChallenge is currently available only in some blood transfusion centers. The app developers are working on resolving the notification issue for iOS users.