A full version app for Android, by Digit Grove.

A fast, simple, and smart tool to convert video and audio files. You can convert to many audio and video formats, including MP4, MOV, AVI, MKV, WMV, MP3, AAC, AC3, AAC, AC4, AAC, FLAC, WAV, OGG, and more. You can also change the resolution, frame rate, and audio bit rate. It’s fast and easy to use. The best thing is that you don’t need to install anything, just download the app and you’re ready to go.

The best part is that this tool has a built-in function to convert your audio files to MP3. That means that you don’t have to do anything else, you can just listen to your MP3 files. You can also use this tool to trim videos and audio files.