For the last 4 years I have been developing iOS app. I have experience working with various frameworks like:
UIKit for creation of UI using both Storyboards and NIB files, and also programmatically.
Core Location and MapKit to get user current location and display information on maps.
Core Image for image processing.
For persistence store I have used Core Data, File System, SQLite and Plist.
I have experience with networking, consuming SOAP and RESTful web services, and working with XML and JSON Parsing, also working with third-party APIs such as Facebook, and Twitter.
Security Framework, storing values in the Keychain.
NSLocalization, MediaPlayer, AVFoundation.