Audio Extractor is a free Android app developed by Vishistah. This tiny app, which is only 2MB in size, can instantly extract audio and video from media files. It supports almost all .mp4 files recorded or playable on your mobile device. The extracted audio file is saved in .m4a format, which can be played using most common media players. If you need a video-only file, you can strip the audio and get a .m4v video file. Additionally, you can trim the audio, video, or both in the extracted file by adjusting the start and end times during the extraction process.

The app has a simple interface that supports as many devices as possible. It should work on most Android devices. If you encounter any issues, the developer encourages you to contact them via email. The app is privacy-aware and does not collect any usage data related to the extraction or general app usage. Overall, Audio Extractor is a useful tool for anyone who needs to extract audio or video from media files on their Android device.