Voxly - Voxly – Color by Number 3D is a relaxing, de-stressing, and addictive coloring app designed for kids and adults who love to color.
Daily Pixel - Daily Pixel – Color by Number, Happy Pixel Art developed and published by Magic Arts.
Coloring Book for Adults - Coloring Book for Adults is a 100% free coloring app that offers an addictive way to de-stress and get creative.
Recolor - Recolor – Coloring Book is an amazing app that allows you to enjoy the simple relaxation and joy of coloring.
Colorfit - Colorfit: Garden Coloring Book is a perfect coloring app for adults that offer a real coloring experience.
InColor - InColor – Coloring Book for Adults is an interesting app that brings out your inner artists and lets you create your very own artwork by filling colors.