Deutsche Version

Coloring app for kids

A coloring book that is just a coloring book.

Moo, the little cow with paint-splash spots, and her friends are waiting for bright colors. Calm, beautiful and free of tricks: no ads, no account, no internet needed.

Soon onGoogle Play

Coming soon for Android phones and tablets.

  • 104 coloring pages
  • 57 characters
  • 100 colors
  • Phone & tablet
Moo, a cat, a fox and a turtle painting a rainbow together on a big sheet of paper

What your child can color

Six worlds full of friends

104 coloring pages with 57 characters. Many characters come in several poses: playing ball, fetching, splashing in paint. Every picture can be colored again as often as your child likes.

  • Animals
  • Vehicles
  • Dinos
  • Fantasy
  • Space
  • Nature

The paint box

Just like real pens and brushes

14 tools and an eraser: brushes, colored pencil, crayon, three kinds of glitter and patterns like stars, hearts and confetti.

  • Color stays inside the area where the stroke starts, so every picture looks great, even with little hands.
  • Paint bucket: one tap fills the whole area.
  • 100 colors in five palettes: bright, pastel, nature, skin tones and night.
  • Undo and redo. Zoom in with two fingers to color small spots.
  • Brush
  • Soft brush
  • Paint bucket
  • Colored pencil
  • Crayon
  • Fine glitter
  • Rainbow glitter
  • Star glitter
  • Stars
  • Hearts
  • Dots
  • Stripes
  • Flowers
  • Confetti
  • Eraser

A look inside

What it looks like

  • NubiMoo start screen with Moo and her friends and the buttons to start coloring and to open my pictures
    Start coloring
  • Choosing a world: animals, vehicles, dinos, fantasy, space and nature
    Pick a world
  • The animals: Mila the cat, Bello the dog, Hoppel the bunny, Ella the elephant and more
    Choose a friend
  • Coloring screen with a brightly colored Moo, with tools and colors below
    Color
  • My pictures with a finished Moo picture and the button to delete pictures
    My pictures
Tablet with NubiMoo on a children’s table, next to crayons and paper
On a tablet: a big picture with the paint box beside it.
Tablet showing “My pictures” and a phone showing the coloring screen, seen from above among pens and paint splashes
“My pictures” on a tablet, coloring on a phone.

The app screens are real screenshots. The scenes around them were made with the help of AI.

For parents

What NubiMoo does not have

Many kids' apps show ads, sell extras or collect data. NubiMoo does none of that. It does not even need the internet.

  • Ads
  • Account
  • In-app purchases
  • Analytics
  • Internet permission

Offline and private

NubiMoo works completely offline. The app collects no data and sends nothing to the internet.

Parent check

The parent area, sharing and deleting pictures sit behind a check. The app shows three numbers as words, for example “seven, two, four”. Young children cannot read them yet; parents type the digits.

Saved automatically

Pictures are saved on the device. Your child opens “My pictures” to keep coloring. With Android backup, the pictures move to a new device too.

Share and print

Parents tap “Done” and then “Share picture” to send a picture as a file, for example to print it.

Phone and tablet

For Android phones and tablets, in portrait and landscape. Big buttons, calm colors, no rush.

Everything is free

All pictures and all tools are free. And they will stay free.

About the project

Why NubiMoo exists

NubiMoo is a small, independent project. I made it because I wanted a coloring book for kids that is just a coloring book: calm, beautiful and free of tricks.

Many kids' apps show ads, sell extras or collect data. NubiMoo does none of that.

All pictures and all tools are free. And they will stay free.

How the pictures are made

The pictures were made with the help of AI. Every picture was checked by hand and prepared for coloring: closed lines and clear areas.

Moo sitting and holding a paintbrush with red paint

Support

How you can help

NubiMoo stays free. If you like the app, even a small thing helps.

Moo, a cat, a fox and a turtle holding a tablet with a Moo coloring page in NubiMoo

Tell others

Tell other parents, your daycare or your school about NubiMoo. The address is easy to remember:

Buy me a coffee

Want to support the project? You can buy me a coffee on Ko-fi. It is completely optional. The app stays the same for everyone.

Support on Ko-fi