You can activate a License-Key (Activation code) in any of the applications, or in My Account
Desktop/Laptop (Windows): Open the BullGuard program > click Settings > Activate the licence key.
Apple device (MAC OS): Right-click the coggwheel symbol from the main screen of BullGuard and the General tab will open. Select "Activate License key".
Mobile device (Android): Tap on the Menu button from the top-right > tap Activation code