How do I remove Banana Plus from one of my devices?

You have changed computer and want to remove Banana Accounting Plus from one of your devices to install it elsewhere? Proceed as follows:

•  from the menu go to Help → Manage Subscription
•  click on Sign out

This will disconnect the program from your subscription. On that device Banana Plus will only work in Free plan mode. You can of course also uninstall the program if you no longer need it.
More information can be found on the Information about your subscription page.