> C++ is used heavily in large high-performance systems whereas Objective-C is mainly used in the mobile apps industry. Try, "Objective-C is mainly used on iOS

> C++ is used heavily in large high-performance systems whereas Objective-C is mainly used in the mobile apps industry. Try, "Objective-C is mainly used on iOS". If you look at the before-and-after picture of Obj-C, it is painfully clear that the only reason for its popularity is iOS. One must wonder what would be possible on the iOS platform if other languages were given a fair shot at that pie...