Rapid Colour - Color By Number is a free Android app developed by Rapid Colouring Games. It falls under the category of Games and subcategory Board. This is a perfect app for those who want to relax and de-stress while coloring. With a collection of over 1000 unique and exclusive pictures to color, it gives a personal touch to the experience. The app is very easy to use, and you don't need any special skills to paint by number.

The app features a number-to-color system, where you have to tap the numbers from the palette and paint the picture accordingly. You can save any color by number image as a picture or an animated video. The app also provides offline support for coloring. You can use the app anywhere, whether at home, in the office or while traveling. With no limitations, you can color and re-color any picture you want, making it a happy coloring experience.