Iolo System Mechanic is available in three versions: System Mechanic, System Mechanic Pro, and System Mechanic Ultimate Defense.The basic System Mechanic costs $4.95 per month for three computers. Paying annually is a significant discount ($23.96, equivalent to paying $1.99 per month), and there’s also a $99.95 lifetime payment option. But the basic System Mechanic only includes the PC optimization tool, which is only a small part of the full product.System Mechanic ProFinally, System Mechanic Ultimate Defense is the full-featured product and costs $63.96 per year. It adds online privacy protection, password management, and malware removal. This makes Iolo System Mechanic Ultimate Defense one of the most expensive PC optimization tools that we’ve reviewed.cutt.ly/vkQ3fpD