It is FREE in iTunes if you wish to try it out. Requires iOS 8. https://itunes.apple.com/us/app/id915975445?mt=8 FEATURES • Unreal Engine 4. Use Unreal Engine 4 to realize your creative vision and stand out from the crowd. • Metal API. Unreal Engine 4 is the first game engine to release support for Metal API. • Stunning visuals. Solid 30fps; 1440x1080 resolution; 4x MSAA; 3,500 butterflies equal roughly 4,000 draw calls, with falling petals at 5,000 particles (not draw calls); as demonstrated in Apple’s WWDC 2014 keynote.