Music and sound effects
Is the music licensed for commercial use?
Yes — music you generate in Cast comes with a commercial license on Plus and Max, and every export made on those plans carries its own license record. Free music is only free until a platform, a client or a rights holder asks where it came from; here you have the answer on file. (Free and Lite have no commercial license, and music you upload yourself is yours to clear.)

Publish on podcast platforms, YouTube or a client channel without waiting to find out whether the track was clear. Each export made on a licensed plan comes with its license record — that is the document you point at if anyone asks.
The one thing to decide up front: if your show carries ads or sponsorship, generate the music on Plus or above, and the license travels with the export.