Mp3tag for Mac High Sierra?

My music laptop is running Mac OS 10.13.6 High Sierra and I can't upgrade due to incompatibility with other critical apps.

I really want to Mp3tag but it seems there are to older version available? How can I download an installer for the last version that will run on High Sierra? I'm fine to pay for it, but the one available in the App Store won't work on my computer.

Here is a thread from yesterday - perhaps it helps.