
Mix your vocal tracks with any instrumental. Adjust volume and timing with simple sliders. No music engineering skills required.

No. All files are processed in a temporary buffer and immediately deleted upon download or project abandonment. If you leave, you must start a new project (and pay again).
You are 100% responsible for securing all necessary licenses (e.g., mechanical licenses for cover songs) before publishing your product. The app does not check or guarantee a work in the public domain.
Music in the public domain (generally pre-1928 in the U.S.) does not require a license. However, the app cannot guarantee a work in the public domain. Users must perform their own due diligence.
Yes, but only after securing required licenses for the underlying composition and instrumental track. The app provides the service of syncing; you own the final mix.