Infinity Blade III was announced by its developer, Chair Entertainment last night alongside the iPhone 5S.
The game will be available on iTunes the same day as the iPhone 5s launches, September 18, 2013 for $7 (Rs. 448).
Besides the 5S, Infinity Blade III will be compatible with the newly announced iPhone 5C, iPhone 5, iPhone 4S, iPhone 4, iPad 4, iPAd 3, iPad 2, iPad Mini, iPod touch 5 and iPod touch 4.