This week, Disney released Color by Disney -- a new app that combines adult coloring books with technology.

Coloring apps are having a moment. Of the top free apps in the App Store right now, four of the top 25 are coloring apps — including the No. 3 app in the App Store, called Color by Number.

Adult coloring book apps are all the rage, and now Disney’s getting in on that action, too. The company has today released its own take on the genre with the launch of the Color by Disney mobile ...