MP3 Tag Editor is a free app that allows you to edit tags on your MP3 files with ease, making it an essential tool for music enthusiasts. With this app, you can edit standard ID3 tags, including Music Title, Artist, Album, Album Cover Picture, Genre, Year, Comment, Track, and Total Track. It supports the MP3 format, which is the most commonly used audio file format.

One important thing to note is that if you use Android 4.4, this app cannot edit tags on files on an SD card, and you must move your music files to your internal storage. Additionally, some phones may have issues with corrupt ID3 tags.

Overall, MP3 Tag Editor is a useful app for anyone who wants to keep their music library organized and up-to-date.