Devil Survivor 2 The Animation, Mahou Shoujo Ikusei Keikaku Recommendations
Two series, where applications form an important part at the beginning and end of the plot. A phone application gives people a chance to gain power (in MS Ikusei Keikaku is to be a real magic girl and in DevilS2 is to summon demons). This puts at risk our protagonists and humanity because of the gravity of the power they acquired where the ideal is to survive. Despite the doubts of the prota he must use his power to help the needy.