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hmm...hard to select one tool among all the features that are in Procreate, this app is really the best for me, as I never got into the Adobe suite (never understood any of them, too left brain for me) what I like in Procreate is that it's intuitive to use, and I love to mimic the traditionnal painting with textures and plenty of brushes, the layers, the blending modes, it can also play back all the steps in a video (that I always forget to start out 😄) I am primary a painter in traditional media, so Procreate is the best way for me to find back the sensations of real painting, without the mess and dirty brushes 😄
for your comment @wandrnrose7

You do amazing work!! :) Have a wonderful day.