SnesMusic is a versatile multimedia application designed for iPhone users, specializing in the playback of game music files from various classic gaming systems. It supports formats such as RSN for Super Nintendo, GSF for Game Boy Advance, and PSF for PlayStation, among others. Users can easily import their music files through iTunes File Sharing or by downloading them directly via Safari, making it convenient to build a personal library of nostalgic soundtracks.

The app offers high-fidelity sound quality while preserving the charm of 16-bit chiptunes. Users can create playlists that mix tracks from different systems, enjoy background playback, and utilize AirPlay and Bluetooth headset support. SnesMusic also features cover art support, allowing users to add images to their music library. However, it is important to note that SnesMusic does not support SPC files on their own and requires specific formats for certain game music files.