Info about how the app works can be found in the about section on the home page. Surprisify has the ability to access a users Spotify ID, top artists streamed over multiple ranges (short, medium, long), and name, and can modify users' public playlists (which is used to generate a playlist). Surprisify currently stores a users Spotify ID and name for reference, and playlist ID of the generated playlist. For any data/privacy concerns please use one of the contact links below.