I have started developing for iOS back in 2010, having launched my first app on App Store on 2011. The app, Tweeton, was a Twitter client and was a wonderful exercise to learn Objective-C and Cocoa Touch.
My next apps launched on App Store were Scalez (information about the notes and chords by scale) and Songz (structuring songs by bar and blocks), back on 2014, both of them utilities for musicians.
Unfortunately none of my personal apps are still live on the App Store. However there is a plan to add new apps to my portfolio soon.