Just to let you know I've created a pixel art app called Pixel Art Pro for iPhone/iPad.
I found many of the other pixel art apps didn't have support for animation or had limited import export options, so I decided to make my own.
It took about a month to develop it and I've just submitted it to iTunes for review. All being well it will be live on App Store within a week - I'll keep you updated.
Here is a short demo of the iPhone version:https://youtu.be/0SrKbA9XgUU
I've tried it on my old iPad mini but yet to try it with an iPad Pro using the new pencil thing - I assume it will work with it, but I've not added anything to specifically target the pencil as the input device - if anyone has one I'd be grateful to find out.
Keep up the good work my fellow artists and developers,