See the announcement at Mac - Coming Soon! Home Designer 2015 for the phone number to call. When I called they replaced the HD Architect 2014 stuff in my digital locker with the 2015 version. I want to think that I saw that the packages < Pro can be installed and active on three computers. On Pro I think it said it could be installed on multiple but active only on one so you deactivate/activate to move to different computers.