A free app for Android, by KUCO Apps.

DJ Mixer Studio – DJ Music Mix is a music mixer app for Android. It allows you to create remixes of your favorite songs, or any other audio file, with 15+ DJ effects. It comes with a built-in equalizer to get the best sound.

You can add effects to create the perfect remix. You can also add music from the built-in playlist, or any other folder on your device, to create a remix. And if you want to mix more than one song, you can combine two or more songs to make a remix.