Seems good but theres also SpriteSomething. The major issue i had with Pixelable is that it doesnt draw some of the pixels of diagonal lines , which makes me think it cannot calculate properly on which pixel your finger is sliding over with regards to the placement of previous pixels drawn ( smth like aseprites pixel perfect but it is kinda enforced and it seems broken). Doesnt happen always but its annoying as hell when it does.
At least on an iPhone 11 Pro with iOS 13.1 its not as great. Button labels are misaligned and I can't do quick strokes. It's as the touches are not registered fast enough. That's sad.