Colorful: Kids Coloring Book

Eighty-eight pictures across eleven little worlds. Tap a shape to fill it, or color it in by hand. No ads, nothing to buy, and it all works with the wifi switched off.

Tap a shape and it fills. That is the whole idea.

Colorful is a quiet, friendly coloring book for young children — the kind you hand over and walk away from. No ads. Nothing to buy. No sign-in. And it works with the wifi switched off.

ELEVEN WORLDS, EIGHTY-EIGHT PICTURES Weather, Baby, Space, Food, School, Sea World, Home, Toys, Vehicles, Bugs and Sports — eight pages in each.

WAYS TO COLOR • Tap a shape to fill it, or draw by hand with the pencil and the brush • Twenty-one crayons in a rainbow, each named for a color a child is learning to say — and the app says the name aloud as it is picked up • Sixteen patterns — spots, stripes, stars, hearts and more • An eraser, and undo and redo for everything • Give the phone a shake to start a page again

NOTHING CAN GO WRONG There is nothing to read and no menus to get lost in. Every mistake is one tap away from undone, and the picture is still there when you come back. No timers, no scores, and no way to lose.

IT REMEMBERS Every picture saves itself. Close the app in the middle of one and it is exactly as it was when you open it again. Finished pictures can be kept in Photos, shared with someone who would like to see them, or printed for the fridge.

MADE FOR FAMILIES No account, no sign-in, no chat, and no way to wander off into a browser. After the first launch the pages live on the device, so it works on a plane, in a car, or anywhere with no signal at all. Drawings never leave the device.

BUILT FOR SMALL HANDS Big targets and bold outlines, colors named out loud, and a shake to start a page again. Day or night, the app follows your phone — or you can set it yourself with one tap.

iPhone and iPad, for ages three and up. A first launch needs the internet to fetch the pages; after that, nothing does.