How do I upgrade F-Secure
KEY on my devices to premium with a voucher code?
Note: If you have multiple devices with F-Secure KEY, you only need to upgrade to premium on one of your devices. You can then upgrade your other devices by connecting these devices to the premium one, which enables you to sync across devices.
Note: At present, due to iOS restrictions, the premium code cannot be entered directly on an iOS device. To be able to take F-Secure KEY Premium into use on iOS devices, you first need to enter the premium code on another device running either on OSX, Windows or Android, and then sync with your iOS devices.
Open F-Secure KEY.
Go to Menu, select Subscription and click the Have a voucher? button.