The beta is free.
TrackDrop is currently available at no charge through Apple's TestFlight program while the app prepares for the App Store.
What is separate
An Apple Music subscription is not included. It is required for the full native catalog, library, radio, playlist, and MusicKit playback experience.
Public SoundCloud mix playback depends on each creator allowing off-platform streaming. TrackDrop does not charge for or resell SoundCloud access.
After the beta
No post-beta price is being announced yet. This page will be updated before pricing changes.