In my case as a Mobile Illustrator, the variety of brushes is really important, though, since I don't dispose of a graphic tablet but a Samsung Tablet instead, Medibang only offers round brushes. Sketchbook is the best kinda? Drawing app for mobile devices in my opinion for the big variety of brushes and its other features. Yet, clipping masks are a very important resource that should be applied to the software for a more professional work. Specially for people who can't afford Digital material. Please, consider adding clipping masks for a comfortable experience with the software. Complicating it too much with duplicating the base layer is not the correct way. Your team should keep in mind that each artist works in different ways and the "lock transparency tip" won't help those artist to perform their style correctly.
