Millions of people need a blood transfusion for lifesaving treatments each year. Yet, blood banks are often in short supply of blood due to a lack of donations. It is critical that there are enough resources available to provide patients with the care they deserve. Our project, BloodPact, empowers people to save lives through community, competition, and information. BloodPact is a web and text-messaging platform that gives new and returning blood donors the opportunity to join and compete across communities, set goals, earn rewards, and access important information about donation eligibility and blood drives.