More versatile, in fact, because it does depend on the software of the playback program (e.g., iTunes) to equalize volume levels among tracks. With this caveat, I have nothing but praise for this app, a worthy counterpart to iVolume for iTunes m4a files. Do NOT use any setting higher than -20.0 LUFS, that is, don’t use any number less than -20.0, and certainly not the default -15.0). This setting is too high, causing high frequency distortion when played back on USB drives. Now the caveat: The default level to 'adjust volume with Loudness normalization' is -15.0 LUFS. First, use Loudness, not Peak, normalization to adjust volume (in preferences, effects) for this app.