Yes - you do, you won´t be able to install QuickBox Pro without one!
(The Community version will continue to be free!)
You can buy a license - HERE
You can read more about the background for a paid license - HERE
IMPORTANT - a license is at the moment only valid for 1 installation, if you choose to reinstall you need to get yourself a reset.
You can request a License reset by clicking - HERE
(Please only do this if you have already paid for a QuickBox Pro License )
If you haven´t recieved your License mail click here - HERE
(Please only do this if you have already paid for a QuickBox Pro License and be sure to check spam folders)