A free app for Android, by Cv Karya Mandiri.

This app is for all those people out there who love to play with their smartphones or tablets as a tool for creative expression! Whether you are a professional DJ, a weekend DJ, or just someone who loves to play with music, this is the app for you. It offers a fun, easy-to-use interface and allows you to mix your own songs and play them on the speakers or your Bluetooth-enabled device. With this app, you can mix and remix songs for free!

The best part is that it is completely free and you can download it on your device.