Activating Klok Pro with your new license key when upgrading from the free version of Klok - Free Time Tracking Software - Klok Free and Klok Pro
If you’ve been using the free version of Klok you can upgrade to the Pro version by purchasing a license key. You can enter your license key using the menu Tools->Preferences->General Tab. You may also restart Klok free and enter your key on the Initial Screen. Related