: This seems to be a branding or identifier used by the entity providing the download. The "dmg" extension refers to a file format used on macOS for disk images, indicating that the software is being distributed as a mountable image file.
The most straightforward and legal way to obtain Logic Pro X is through the Mac App Store. As of my last update, Logic Pro X requires macOS 10.14.6 or later, and it's compatible with Mac computers that meet certain specifications. : This seems to be a branding or