A: Hi Greg!
Switching machines is simple.

Your license is based on the number of Mac activations included in your AppSumo tier. If you move to a new Mac, you can sign out on the old Mac and sign in on the new one.
As long as the same license isn’t being actively used across more Macs than your tier allows, you’re good :)

And just to clarify: this deal is currently for macOS only. iPads are not supported for now