I have several friends that have coloring apps on their phone. I see the ads all the time and have thought about down loading one and giving it a try. But yet, I spend more time than I should right now playing games, which is what is relaxing to me, and the thought of getting another app to use my time up with.....well, I'll never get anything done at home if I get addicted to yet another app, so I stay away from them. They do look like fun, though.