Maybe not the most original idea for an app since Sound Recorder comes as an default app on iPhone, but it was fun making it.
It uses an AVFoundation framework along with UIKit, Foundation and CG framework to run this puppy.
Principles are basic but working :
Press the recording button, record starts. Anything you say or play in background gets recorded and storaged into created folder Library with an default name recording.caf.
Stop button stops the recording process and closes the file generation.
Play button pulls the data out of Library folder and plays it on speakers.
Microphone graphic taken from 365psd.com free for usage.
Hope You will like it!