iPhones need this app if youre using Garageband or the like since youve got to use WAV files. Its a bit of a pain to HAVE to text yourself the mp3s in order to hold-click and convert through this app. But thats more of an iPhone issue, not the fault of this app. Overall, I am INCREDIBLY grateful to have found this.
TasteMaker Critic about The Audio Converter, v2.5