Dropbox pioneered the personal cloud service, where all your stuff would be available no matter what device you were using. On Android, it holds its own—even against the highly integrated Google Drive. Dropbox can also act as a seamless backup for your images, automatically uploading every photo to the cloud. It even includes some light image editing tools. If you're the type of person with lots of files already stored in Dropbox, this app is a must-have.
All you need is to hold your Android device close to the source of the song, and after a few seconds, the app will accurately detect the song. Besides, you can also play songs and add them to Spotify playlists, buy songs in Google Play Music with one tap, connect your Facebook account, etc. If you are a musicophile, this Android app is a must-have for you. Droid App