MAC Good Kisser is a cool fuchsia with a semi-matte finish that is permanent and retails for $19.00. In comparison, Makeup Geek Cha Cha is a cool fuchsia with a matte finish that is limited edition and retails for $12.00.
Makeup Geek Cha Cha is 80% similar — it is darker, more muted, cooler, less glossy.