iPhone growth spurs iOS programming language's popularity
Underlining the popularity of the iPhone and its software, the programming language used primarily by Mac/iOS applications and games, Objective-C, is now one of the most popular programming languages.
The object-oriented language is still behind C and Java by a significant margin, but it's now overtaken general-purpose language C++, which had been vastly more popular than Objective-C before the App Store's launch.
TIOBE Index, a programming community index, has published charts and data
regarding the most popular programming languages after ranking them based on the number of skilled engineers, courses, and third-party vendors for them.