ColourPop Nix is a warm teal with a metallic finish that is limited edition and retails for $6.00. In comparison, Anastasia A5 (Norvina Vol. 2) is a cool teal with a frost finish that is limited edition and retails for $12.00.
Anastasia A5 (Norvina Vol. 2) is 85% similar — it is less shimmery, darker, cooler.