BeerSmith keeps each copy of the program as a separate installation. There is no file sharing through the program to other computers. You can use the recipe cloud to move recipes from one computer to another, but this will not sync them to update if you make a change on one computer. Personally, I don't use the cloud storage too much, but you if you have the right subscription, you should be able to do recipe library storage in the cloud and access it from each computer as needed.