Allavsoft can batch download video and music files from YouTube, Spotify, Vimeo, Deezer, etc. It can convert Spotify music to MP3, WAV, etc. in a few simple steps. In terms of interface design, Allavsoft is simple and clear, and users can easily perform a conversion. However, it doesn't work with Spotify and only search songs from other sources instead of Spotify, so many songs on Spotify can't be downloaded.