Colourful

What’s New - Update Required! We have some bug fixes in update 1.16. Enjoy some big fixes with the drawing pen, as we work on perfecting how it works, and how smoothly it draws! You will notice almost 0 delay when colouring, as well as its more accurate where the pen works, and we have added better wrist rejection! We have also reworked how storage handling works, to help minimize any storage related crashing (as we have been alerted by users, this was an issue before.) Users can now also enjoy iCloud colouring page sharing, so you can backup your colouring pages, and access them from any of your other iCloud devices. Happy Colouring!

Source: Apple App Store listing.