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Little Crayons - Kids Colouring App for Android

Ready-to-publish kids' colouring app: 436 pictures, in-app purchases, source

Oct 14, 2026 Education & Learning
children education creative play interactive learning kids colouring rebrandable project

About

Little Crayons is a complete, polished colouring app for children aged 3-6, ready for you to rebrand and publish on

Google Play. It has never been published, so you launch it fresh under your own developer account.

Children pick a colour and tap a shape to fill it - no reading needed. There are 436 original pictures in 20 books:

Farm, Zoo, Under the Sea, Dinosaurs, Garden & Bugs, Unicorns & Fairy Tales, Princesses & Mermaids, Space, Vehicles,

Robots & Toys, Yummy Food, ABC, plus Spring, Easter, Summer, Autumn, Halloween, Winter and Christmas. The seasonal

books move to the front automatically.

FEATURES

- Tap-to-fill colouring with 18 colours, undo and start again

- Magic brushes (glitter, rainbow, dots, stars, stripes), 36 stickers and free crayon drawing

- Confetti and happy sounds when a picture is finished

- "My art" gallery - every picture saves automatically

- Print (coloured or a blank page to colour with real crayons), save to gallery, share

- Grown-up check before purchases, sharing, printing and settings (Google Play Families policy)

- Phone and tablet layouts, works fully offline, 2.6 MB

MONETISATION BUILT IN

- 4 one-off in-app products: Everything (£4.99), All pictures (£2.99), Magic brushes (£1.49), Sticker pack (£0.99)

- Google Play Billing Library 8 code already written (purchase, acknowledge, restore, local prices). It ships in demo

mode; one line switches it to live once you create the products in your Play account

- 3 free pictures in every book (57 free), so every book still has pictures to unlock

- One settings file for free amounts, products and a home-screen announcement, plus a hook for Firebase Remote Config

to change them without an update

- No ads, no server, no running costs

TECHNICAL

- Kotlin (single activity) + HTML/CSS/JavaScript in a WebView; pictures are code-drawn vector graphics

- Targets Android 16 (API 36), as Google Play requires for new apps; works on Android 6+

- Builds in Android Studio in minutes

WHAT'S INCLUDED

- Full Android Studio source code

- Signed demo APK to try every feature (purchases are free in demo mode)

- 45-second 1080p promo video

- Google Play graphics: 512px icon, 1024x500 feature graphic, 8 phone screenshots

- Ready-to-paste Play Store description, Data safety answers and a privacy policy template

- 33-page Buyer's Guide: market research, pricing, rebranding, building and signing, turning on billing, publishing

step by step (including Google's 12-tester closed test), adding new books, translating, a 90-day marketing plan and

growth ideas

- 30 days of email support for setup questions

WHY BUY

- Colouring is one of the biggest kids' app categories (top apps have 100M+ installs)

- More pictures than well-known apps like Bimi Boo (~170) with fairer pricing - parents' biggest complaints about

competitors are subscriptions and ads

- Original artwork, no licensed characters, full rights transfer

STATUS

Pre-launch: not yet published, no revenue. Real purchases are coded but need testing inside your own Google Play

account (steps are in the guide).

TRANSFER

Source zip, APK, video, graphics and guide delivered as soon as payment clears through SideProjectors escrow.

Comments (1)

Myriam Sipes Myriam Sipes 2 weeks ago

436 pictures for kids sounds fantastic. What stack did you use for the backend? Interested in the architecture for in-app purchases.