CUTEST pics but it's SO difficult to use. – Adult Coloring Book Zentangle Review

This app has some of the cutest pics I've ever colored on my iPhone 6. But it has to be the most difficult coloring app I've used so far -- partly because I can't zoom in enough to actually put color in even some medium-sized spaces, AND because I'm having to tap over and over to finally color in a space. I'm guessing it is easier on an iPad or tablet but most of my MANY coloring apps zoom in and color much easier. As soon as that is fixed, it'll deserve 5 stars! Or even 6!!
Review by Nutzydoodle on Adult Coloring Book Zentangle.