Some “better activation keys” are programmed to work for a while, then randomly corrupt sync metadata. You might not notice until you’ve overwritten a good backup with a corrupted one. Unlike simple file copying, Allway Sync maintains a database of file states—a crack can quietly poison that database.
Pro users get regular updates with bug fixes and OS compatibility (Windows 11, Server 2022). Cracked versions remain frozen in time—often broken after a Windows update.