Complete Guide: iPhone 7 Price Plans ATT, Verizon, T-Mobile, Sprint. iPhone 7 Release Date – September, 2015. iPhone 7 Pre-Orders first September’s week-end. Apple Watch has been released. Next time iPhone 7 – everyone wants one iPhone 7 with new features and specifications. But what’s it going to set you back? What is the price of the iPhone 7 and what’s the cost of the AT&T, Verizon, T_Mobile or Sprint data plans?