Recently, Microsoft and the folks at 343 Industries launched two Halo spinoffs on the App Store. Halo: Spartan Assault [$5.99] originally debuted back in 2013 on Windows devices and is finally on iOS devices. However, Halo: Spartan Strike [$5.99] is a brand new adventure that saw a simultaneous launch on all pertinent platforms. As a sequel to Halo: Spartan Assault, it would make sense that Strike seeks to improve upon its predecessor and it succeeds in that regard. While the changes to the formula feel more evolutionary than revolutionary, those improvements are on a game that was already great to begin with making Strike an even better dual stick shooter.