If you have Adobe Creative Cloud you can use Photoshop for iPad free food a period.
https://www.adobe.com/products/photoshop/ipad.html
From Adobe:
Open up full-size PSDs on your desktop or iPad and store them in the cloud — no conversion necessary. You get the same fidelity, power, and performance no matter what device you’re working on, even when you’re designing with thousands of layers.
I heard about the new iPad version and have been drooling. Waiting on delivery of my new iPad to give it a try. I’m wondering if I will need an Apple Pencil too.