for Download version
What's the difference between the download version and the Mac App Store version
Both versions are functionally identical, except that they are available from different sources. The download version includes Windows, macOS, and Linux versions, while the Mac App Store version is available only on macOS.
If you only use it on macOS, choose whichever version you prefer, or if you might also use it on Windows, macOS, or Linux, choosing the download version and purchasing a full-platform registration code may be a better deal.
What is the difference between a License Key and a redemption code?
The License Key is the credential required to activate the software and is tied to the Email.
A redemption code is a one-time code used to generate a registration code that can be tied to your email on this page to generate the corresponding License Key.
How many devices can one License Key be used on?
A License Key is licensed to a user, not to a specific device, and can be used on all computers in normal personal use.
Of course, we do check the use of License Keys from time to time, and may freeze the key if we see signs of obvious abuse (or registration code leakage), such as the number of devices active at the same time significantly exceeding the normal value.