Apps similar to Groovv include Discogs, which is free. Other options are Encyclopaedia Metallum. Between them they cover the web, Android and iPhone.
Discogs is a crowdsourced music database and marketplace. Discover music, buy and sell music with collectors in the Marketplace in all physical formats.
United States
The purpose of this site is to grow the largest and most complete database regarding heavy metal bands as possible. Since we cannot possibly know all the bands ourselves, especially the really obscure ones, we figured we should let the visitors contribute.
Canada