Bitterly Disappointed – Zen Coloring Book for Adults Review

I bought this and the developer’s other, Adult Coloring Book. BOTH stopped working within a week! Neither would let me change palettes & got stuck on one single color. I powered down my iPad Pro & still doesn’t work. If I delete and re-download, I lose all my saved work. I am bitterly disappointed.
Review by Alice Bowman on Zen Coloring Book for Adults.