Only needs two things. – Voice Recorder Free - Recording Audio Memos App Review

1. Trimming/Splitting/Deleting feature. 2. Ability to pinch to expand the audio wave. The reason for this? So you can make a recording, flag the best bits, open the recording, pinch the wave to expand, delete everything except the best bits of audio, and export the audio out of the app.
Review by cloudbursts on Voice Recorder Free - Recording Audio Memos App.