EifoDefi is a social defibrillator mapping app designed to enable collaborative mapping of all automated external defibrillators (AEDs) in Israel. The app, which is currently in use in Israel, can save lives by socially mapping public AEDs and making them accessible to everyone. EifoDefi is backed by Cactus Capital, a student-run venture capital firm powered by Ben Gurion University, and is a joint venture with fresh.fund, a Jerusalem-based student-run venture fund.