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.