Audiolio is a featured app because of it’s sophisticated audio markup capabilities. Easily bookmark (tag) specific locations in an audio recording with timestamps, notes, captions, and images. Pre-recorded audio can be imported or live audio can be recorded from an iPad. The audio file and it’s bookmarks can be shared via e-mail, iTunes or Dropbox as a text file, PDF, or in Audiolio’s proprietary format. Audiolio is a paid app that only works on an iPad.