ColourPop Boa is a moderately warm-toned, medium-dark lavender with a matte finish. It is a permanent lipstick that retails for $6.00 and contains 0.0352 oz.
ColourPop Boa Matte X Lippie Stix ($5.00 for 0.035 oz.) is a light-medium, pinky lavender with cool undertones and a matte finish. It had opaque color payoff, but the texture "cracked" visibly on me from the get-go, even though it had seemingly good coverage and didn't drag at all (very velvety applied). The color wore six hours with the color still remaining "cracked" but didn't seem to work into lip lines from there. It was drying after six hours. ColourPop Pepper (LE, $7.00) is darker (90% similar). Makeup Geek Arabesque (LE, $12.00) is darker (90% similar). MAC Kawaii Party (LE, $18.50) is darker (90% similar). ColourPop Seesaw (LE, $6.50) is warmer (85% similar). Rare Beauty Daring (P, $20.00) is darker, cooler (85% similar). MAC Dodgy Girl (LE, $19.00) is lighter, cooler, glossier (85% similar). ColourPop Koala (LE, $6.50) is darker, cooler (80% similar). See comparison swatches / view dupes side-by-side.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.