Using Dropbox has not worked at all for me by changing the recipe folder to the specified Dropbox folder. Every single time, I end up with duplicate copies of files in the Beersmith2 folder (Recipe1, Recipe2, Recipe3, etc.). If you still want to try it after that warning, here is the method
I haven't tried this yet, but this thread
discusses using a symbolic directory link. If you feel like you know what you're doing and want to try it, I would try this instead, with the caveat that you do not want to ever have Beersmith 2 open on both computers at the same time.
The supported method that works for syncing recipes (but will not sync equipment profiles, ingredients, etc.) is using Beersmith's own Recipe Cloud
, which costs $9.99-$35/year (on sale), depending on which membership level you choose. There is also a free basic level with limited functionality.