Easy mp3 Video to mp3 Converter is a free multimedia application developed by WEBDIA INC. for iPhone users. This app allows users to extract and convert audio from video files with simple and high-speed operations. It also enables users to edit the extracted audio files and supports various functions such as ID3 tag editing, file sharing, and playlist creation. The app supports a wide range of video and audio file formats for conversion and playback. Users can set the bit rate and sample rate during audio conversion and even concatenate multiple audio files. The app also supports background playback, equalizer, and genuine earphone control. Some functions require in-app purchase, but all basic functions can be used free of charge. Users can leave bug reports and suggestions for improving functions in the reviews.