ColourPop Sundae is a cool fuchsia with a semi-matte finish that is limited edition and retails for $6.50. In comparison, Obsessive Compulsive Cosmetics Yaoi is a cool fuchsia with a metallic finish that is discontinued and retails for $18.00.
Obsessive Compulsive Cosmetics Yaoi is 85% similar — it is more shimmery, glossier.