There is also an 'Alias' file for your Mac's Application folder. What the people at Serif/Affinity have done is put the complete Application (Designer or Photo or Publisher) in there. You can open the 'pretend' hard drive and see the files in it.

This is a file which the Mac OS will open as a 'pretend' external hard drive. My understanding is that DMG is short for Disk Mount Ima ge. What is DMG installer file? How would I copy to applications? I'm pretty confused. The initial downloaded APh dmg file can be saved/moved to some own backup directory in order to keep it, or if one don't want to keep it locally as a backup, it can be removed/deleted after the installment! The above will not delete the initial downloaded APh dmg file, instead only just get rid of the disk file mounting point.

So after dragging/copying the APh app folder over to the system global '/Applications' folder, or alternatively into the user's 'Users/ username/Applications' applications folder (after installing), the mounted disk file point path has to be ejected/ unmounted/removed via pressing the eject icon button -> ' ' next to it, otherwise it would be kept as a mounted disk file path! Note that the DMG (disk image) file when opened (double clicked) will be automounted and appears as a disk mounting point path in MacOS Finder or any other OSX file managers. You then Open the file, and drag the application icon in the file onto the Applications icon. It is a disk image file that you would download from your Affinity Store account.

Affinity photo macos