The Spotify app has passed 500 million installs on Android. In its last quarterly report, Spotify reported 207 million monthly active users, so the 500 million stat includes people who are no longer using the app and reflect how Google calculates downloads and installs.
Pandora, Amazon Music, Deezer, YouTube Music, JioSaavn, and Gaana are each on 100-500 million Android app download category. Tidal, Apple Music, and Anghami sit in the 10-50 million range.
H/T Android Police