Using MP3 Cutter is really simple: just select the audio file, which can be in MP3 or M4A format, and use your fingertip to choose the section you want to crop. You can choose the exact second where it starts and ends. After that, just save the results, and voilà – you have your perfectly cropped audio file.
MP3 Cutter is a great app for two main reasons: it's really easy to use, and it takes up very little space on your device's memory.
Requires Android 2.3.3 or higher