No, it won't cost money to fix the problems in your PC using SmartSys Monitor. The software is listed as freeware which means you can use it free of charge. However, as a personal opinion, I wouldn't use it because the operating systems were updated and many things changed including the way they work, and based on the data found, SmartSys Monitor is an old application.
If you need to tweak your PC, install CCleaner to fix registry problems and delete the obsolete files and AdwCleaner to delete malware, adware, and trojans.
