Programming languages/Technologies
? Objective-C
? Swift
? iOS SDK
? AFNetworking
? AVFoundation
? ARC
? Core Animation
? Auto-layout
? Storyboard
? Core Location
? Cocoapods
? Parse
? Quickblox
? Facebook
? Photos
? Core Graphics

Frameworks/libraries
? CoreData/MagicalRecord
? SQLite

Target mobile platforms
iOS, Mac OS
SCM
? Git
? SVN
? Bitbucket

Operating Systems
? Microsoft Windows
? Mac OS