After activation, go to the "Demo" tab inside the app. Play the "Amaze" or "Leaf" demo track. If the demo plays in full 3D spatial audio, your free license is active and working.
But there is a catch. Most users open the DTS Sound Unbound app, see a price tag (usually around $9.99–$19.99), and close it immediately. What many don’t realize is that a is not a myth; it is a legitimate feature, but only for specific hardware owners.