EZMP3 Player Pro - EZMP3 Player Pro is an audio player for iPhone which supports MP3 and M4A formats. Music files can be directly added to the app via WiFi or USB, without requiring iTunes sync.
The app supports lyrics display, id3 tags, album gallery, playlists and more. In addition, EZMP3 Player Pro allows you to manually manage folders and files
musiXmatch for iPhone - musiXmatch lets you find and match lyrics to your favorite music tracks for free. With more than 6 million officially licensed lyrics localized in several languages, musiXmatch allows users to access the largest lyrics database in the world.
The app features a fully integrated music player, song tracker, and powerful lyrics search engine
Music Picker for iPhone/iPad - Music Picker makes it possible to select whole albums or single tracks from your own music collection, fast, simple and intuitive by chance! Easily use the favorite music to put together an own playlist, in a pleasant and varied way and play it with the device media player
iSub is an iPhone and iPod Touch client for the popular open source Subsonic music streaming software (subsonic.org). Stream your personal music collection from your home computer to your device regardless of format. Subsonic will automatically transcode most file formats, and can even lower the bitrate to save bandwidth
Twonky Mobile - Twonky Mobile lets your iPhone become the ultimate remote control. Find media on your network, such as the music, photos and videos stored on your computer, and play them on your phone or beam them to your TV or other network-connected media player (e.g. DLNA, Airplay device)
Philips DockStudio for iPhone/iPad - Philips DockStudio is a companion app for Philips docking speakers. It enables a host of new features, such as playback controls, worldwide internet radio, sound settings control, alarm clock, and weather forecast.
Philips DockStudio allows you to easily browse and play your music collection
Plex (iPhone/iPad) - The Plex application allows you to use your iPhone, iPod touch or iPad to browse and play your media (video, photos and music) using the Plex Media Server installed on your Mac. In addition, you can view online media from a variety of sources. If you have Aperture, iPhoto, or iTunes installed you can also stream the content to your mobile device
Z-Subsonic streams your entire music collection (WMA, FLAC, MP3, AAC, OGG and more) securely to your iPhone/iPod/iPad without going through a third-party server.
Z-Subsonic is a client to the popular Subsonic open-source music streaming server. Z-Subsonic requires Subsonic server. Subsonic server can be found at subsonic.org
APE Music Player - APE Music Player is an audio player for people who want to listen to music in high quality. The app supports the APE lossless audio format, as well as the classic MP3 format.
APE Music Player lets you play your music by folders or playlists. Audio files can be transferred via WiFi and USB