ColourPop Uplevel is a cool lavender with a matte finish that is limited edition and retails for $4.50. In comparison, Make Up For Ever I906 Neon Mauve is a warm lavender with a satin finish that is discontinued and retails for $21.00.
Make Up For Ever I906 Neon Mauve is 80% similar — it is more shimmery, darker, warmer.