A new defibrillator app for smartphones will help to boost safety levels in public areas of the City of Graz. In a first step, busy areas in the city were provided with publicly accessible defibrillators. The timely use of these devices means that normal cardiac activity can be restored with a small dose of electrical energy should anyone experience an unexpected heart malfunction when they are out and about in such places. A corresponding list of sites with available defibrillators has been set up on the City of Graz