APE is a sound file format. In this format, data encoding is performed using Monkey's Audio Lossless. The developer is Matthew T. Ashland of Monkey's Audio. Compression of audio data in this format occurs without loss of quality. The sound quality of APE files is much higher (corresponds to high-end WAV and WAVE formats) than the more common and popular MP3 files, but they take up more space. The software package Adobe Audition allows you to edit the soundtracks of APE files. The format supports the ability to correct write errors.
ALAC is the format of a small specialized program called an audio codec. Its main task is to compress a file with digital music without losing its quality. The name of the format created by Apple's IT giant is Apple's abbreviation Lossless Audio Codec. This format may also be called ALE (from Apple Lossless Encoder). Files in this format can play devices even with limited computing resources - such as an iPod. When compressing a file in this format, it is approximately 40-60% of the original file. Now almost every multimedia player based on the libavcodec library is able to play ALAC format files.