HammerKit has decided to focus entirely on developing the current version 4 of the design tool. This means that certain features of the old version 3.5, such as the visitor tracking will no longer be updated. For better performing tracking system, we recommend using some of the more comprehensive tools such as Google Analytics which is easily integrated to any HammerKit site. Sites currently running on version 3.5 will be maintained normally.

Best, 

HammerKit support