Simple audio recorder I built for iOS in Objective C using AFAudioFoundation.
I built this for a previous project and thought it worked pretty effectively so I cleaned it up and made it good for general use.
It's heavily commented, largely for the benefit of new users reading it who want to get more familiar with AFAudioFoundation.
Just add the image files, JCAudioRecorder.h/.m and either copy the .xib from the Storyboard or build your own. Outlet as necessary. Be sure to add AFAudioFoundation.framework to your project too.
JCAudioRecorder has a .audioData NSData property which is populated upon tapping stopped. Use that to access the data. Alternatively, the track is saved as sound.caf in the NSDocumentsDirectory.
Quick gif of it in action.