Breezy — Gamified coloring book app for adults

We all know that coloring helps to relax, that is why coloring apps boomed on the App Store not long ago. The trouble is building a healthy habit is tough, many people start coloring, but then get back to smoking or playing hard games after a working day. The solution is the gamified experience: collect the colored pages, exchange the pages you don't like for a new one, and track your friend's performance.