Installed and went to create an account. It said sent email for verification. No sign of it and couldn’t log in to website though it said email was taken if I tried to register again.
Went back to program which let me log in and displayed my name from website account I created. It took maybe an hour for email to arrive. Verified it and was allowed to log in on browser and clicked on prominent claim giveaway license. Filled in the line from the SOS download page and it said license successfully claimed. Program didn’t change so I restarted it and logged in from program again and bingo. Program says Pro version.