Cross DJ is arguably the best "pro-grade" DJ software available for the Android ecosystem. Whether you’re downloading it to practice on the bus or to perform at a house party, the 4-deck functionality provides the headroom you need for complex, professional mixes.

The full version removes all ads and unlocks every feature permanently, including multi-channel audio support and full MIDI controller mapping. How to Download and Install

If you want the legitimate 4-deck experience without hunting for APK files:

Some forums claim a "Cross DJ Free 4-deck APK" exists. Historically, Mixvibes released a limited-time promotion version years ago. Any link claiming to have that file today is almost certainly a virus. Do not download APKs from: