11 temporarily free apps and games for Friday

AppsVLSM Calculator$1.99 -> Free; Sale ends in 3 daysEHT - Earphone, Earbuds and Headphone Test Tool$1.49 -> Free; Sale ends in 4 daysStar Link 2: Constellation$0.99 -> Free; Sale ends in 7 daysGamesCombat Strike PRO: FPS Online Gun Shooting Games$2.49 -> Free; Sale ends in 6 daysTerra Fighter 2 Pro$0.99 -> Free; Sale ends in 6 daysZombie Age 2 Premium: Survive in the City of Dead$0.99 -> Free;