There aren't too many differences, so if you don't mind some minimal banner ads the free version works just as well. Alternatively, there is a free version: BlackPlayer. Of all the playback apps I've tried on Android, BlackPlayer EX is well worth the price. BlackPlayer also has remote support, so if you have a headset or earbuds with a remote, you have all standard music controls to manage the app without waking your device:

The app also has a tag/metadata editor so you can manage the tags of your library on-the-go. You can even set a custom font for the library browser now, and the UI has a gradient sample theme for your albums.

More customization and a better UI are now part of the app. I hadn't updated it until just recently, and I must say, it's even better now. After trial and error between dozens of apps, BlackPlayer had proven to have everything I needed. I had owned an iPod touch 5g before, and really liked the music app. When I made the switch to Android, a good music app was my first concern. My personal favorite is BlackPlayer EX ($2.00 USD).

Black player for android