TinkerTool System 4

              System 4TinkerTool System 4 was a collection of system utility features helping you in performing advanced administration tasks on Apple Macintosh computers running OS X Yosemite or OS X El Capitan.

These historic operating systems can no longer support the current safety standards for Internet communication. Apple does not provide the necessary security certificates and TLS versions, so these systems cannot contact our license servers any longer. For this reason, distribution of the program had to be stopped. Customer support for this product ended on October 1, 2021.