While the free version covers basic USB protection, offers several administrative and functional advantages: What are the advantages of Smadav Pro? | papua
The free version only scans when you open a folder or plug in a USB. The Pro version actively monitors your entire system registry, startup programs, and running processes. It stops malware before it executes.
If you bought a lifetime key for version 13.5.0 before Smadav switched to a subscription model, check your email. Most lifetime keys still work to unlock Pro features within the version they were purchased for, but they will not unlock newer major revisions (14.0 and above).
