By Valerie November 6, 2019 August 30, 2023 Kids love playing games on smartphones and tablets, and having one of the best coloring app for kids makes it so much more fun.

On the other hand, coloring books marketed for adults have become unexpectedly popular in the past few years. In 2011, Johanna Basford released Secret Garden: An Inky Treasure Hunt and Coloring Book.