User blog comment:SoFaNAtiiK/Can't connect with facebook/@comment-28090674-20160403171213/@comment-28090674-20160403180734

Not accurate. That was my first concern. Which is why after I managed to go around facebook login on the laptop, I decided to see if after a couple of quests, these were reflected on my account via facebook. So got into the game with my phone, using facebook login and I did notice that it did reflect the changes. Don't forget that once you do anything in game it "connects" to the servers.

The way I see it, and be mindful that I don't know the system implementation behind, is that they're using a facebook login as a "pointer" of sorts to point to your game ID (the big number you can give your friends to add you) when the actual saving takes place on their servers. Thus why I'm able to play on laptop without logging into facebook (since the game still had my ID recorded) and it reflects if I log with my phone.