A quick view for Mobile Development with iOS
2007 - First iPhone
2008 - Appstore
2010 - 185K apps available in Appstore
2013 - iOS 7 with new UI
2015 - iOS 9 ( iPod, iPad, iPhone 6s, Apple Tv, ... )
https://itunes.apple.com/us/app/xcode/id497799835?ls=1&mt=12
https://developer.apple.com/programs/
http://rockalabs.com
@elpipesalazar