When I brought home Color Club Gift of Sparkle (the non-Sally’s version), then looked at that next to the Ulta brand Purplexed, the two seemed fairly similar. Both were purple with holo glitter, leading to a swatching test with my other purple holo glitter, China Glaze Crystal Ball. The Crystal Ball I used was on its last legs so it was a little thick and tough to work with, but that’s a color I’ve got to use every last bit of. Waste Crystal Ball not, want Crystal Ball not.
When I had these next to each other, the glitter in Crystal Ball is much finer (and much less annoying to remove). Purplexed was a more blue purple and Gift of Sparkle a more red/pink purple. The Ulta polish seemed to have bigger glitter pieces and more silver to it, and to end up a little rougher in final application. I personally gravitate towards cool blue purple more, so I like Purplexed better (and it was $1 so the price can’t be beat) but these are all really pretty shades.