Compatible with iOS 6, 7, 8 and 9
AudioExplorer+ makes it easy to find audio files on your iOS device and do stuff with them, like add them to ringtones or the iTunes library or open them in another app. It can play the same audio types that the free app AudioExplorer can, but finds them faster and is more responsive. Plus, if you install new apps after you search, AudioExplorer+ finds these without needing to search all the other apps again.
AE+ also has ability to edit ID3 tags before importing into the iPod library (see screenshot).
iTunes and ringtone import only works on iOS 6.0 and above