This app is intended for educational purposes only. It should be used to test your knowledge of all things metal.This app is hosted on a cloud so updates will occur immediately. Updates should download immediately upon opening the application. If the download has trouble clear the cache under your manage applications tab, and reopen the app.If you have any suggestions or see any errors, please contact me at my website.http://www.rleahey.comIncluded Categories: Albums Bands Bassists Drummers Guitarists Keyboardists Lyrics Singers Songs