A free app for Android, by GunjanApps Studios.

Are you looking for a stress-relieving activity? Do you love coloring? If you answered yes to these questions, then this app is for you.

This is a color-by-number app, great for kids and adults alike. With this, you will be able to create your own artwork and choose from a wide variety of images to color. The categories of images include mandalas, fashion, animals, food, love, and more. What’s more? You can use your own selfie by turning it into a pixel art portrait! You can use your fingers to zoom the photo in and out. 

You can enjoy this application for free. This also does not require Internet, so you can use it anytime, anywhere.