The analytics we've collected thus far suggest that most people use Nook+ on a single device. Consequently, by default, Nook+ simply stores your data on that one device. This data includes things like which villagers you've marked as being residents on your island.

However, some users like to use Nook+ on multiple devices. Rather than requiring them to update their data on each device, we built a feature that stores this data in a central database that each device can then synchronize with. If you want to use this feature, read on.

If you open Nook+ on the primary device on which you use it and go to the Settings section, you'll notice that there's a field labelled "User ID" with a button next to it that says "Generate."

If you click the "Generate" button, it will communicate with our database to create a User ID that uniquely identifies you as a user and then store all your Nook+ data in that database associated with that User ID.

Now, copy the value of the User ID field and send it to another device on which you use Nook+. You can do this however you like: text, e-mail, a messaging client, a service like Pushbullet, etc.

Open Nook+ on that other device and use its copy/paste features to copy the User ID from wherever you've sent it and then paste it into the User ID field of Nook+ on that device.

At this point, Nook+ will download all the data associated with your User ID from our central database and store it on your device.

From then on, any changes you make to your data are sent to the central database and retrieved from there each time you open or switch sections in Nook+ on any device that has your User ID.