aTunes is a free and open source audio player with MPlayer as its playback engine. aTunes supports MP3, Ogg Vorbis, FLAC and other formats. aTunes allows users to edit tags, organize music and rip audio CDs easily. Developed by The aTunes Team
License: Open Source
gtkpod is primarily focused on managing iPods and offers detailed track management, while aTunes is a more general audio player with lightweight performance and additional features like streaming radio. Users looking for dedicated iPod management might prefer gtkpod, whereas those seeking a flexible audio player might opt for aTunes.