Musis - Rate Music for Spotify is a free iPhone app developed by David Abreu. It falls under the category of Multimedia, specifically Music & Radio. This app allows users to rate albums and songs they love the most, and based on these ratings, it provides personalized music recommendations and helps users discover new music releases from their favorite artists.

One of the key features of Musis is its integration with Spotify. Users can connect their Spotify account to the app and create playlists based on their music ratings. They can also check their yearly top songs playlists created by Spotify. Additionally, Musis allows users to easily rate their currently playing song on Spotify and access their recently played songs.

With Musis, users can not only rate music they already know but also discover new albums and songs. The app provides personalized music recommendations based on users' Spotify listening patterns and rating history. Users can also share their music ratings, playlists, and more with their friends and the world. Musis also notifies users about new music releases.

Furthermore, Musis offers various features to explore and engage with the community. Users can find people with similar music tastes, explore top rated and voted albums, songs, and artists, and check weekly and monthly charts. They can also view user leaderboards to see who has the most ratings.

Please note that Musis - Rate Music for Spotify is not endorsed or affiliated with Spotify LTD in any way.