I agree with you, on android Amethyst so far is unbeatable, Yakihonne still needs to improve a lot but it is on the right track and I appreciate their effort to make everything very smooth to use, graphically Yakihonne is beautiful to look at.

Primal is making some very questionable choices, too centralized. It is definitely very fast, but the notes with images and videos are bad and their caching system breaks my painting links on Creatr.