Tacho PRO Jan & July

what is the difference between this product --> http://www.eobd2.com/wholesale/tacho-pro-2008-plus-unlock-universal-dash-programming-tool.html
and this ---> http://www.eobd2.com/wholesale/tacho-pro-plus-v2008-july-version-main-unit-for-sale-2101.html

I want to buy tacho pro, but i am confused about these two products. what are their differences?
also if you know, with which one can i mileage the km to a fiat punto 1.200cc 16V 2000 year, and seat ibiza 2005 1.400cc 16v

thank you and waiting you for your reply ;)