Sandbox - Pixel Art Coloring

Puzzle

7.1~~/10~~

Our score

★ 4.6 Google Play·50M+ installs

Reviewed by Editorial Team, ScoredApps editorial · updated 2026-09-07

Screenshots

Pixel grid of a heart being filled by numbered cells

Completed rainbow lips artwork with export buttons

Library feed showing portraits, fruit and animals to colour

Colouring a pixel-art eye cell by cell, with palette numbers 1 to 5 along the bottom

About Sandbox - Pixel Art Coloring

Colour by number on a pixel grid: each cell carries a digit, you pick the matching colour, and an image resolves square by square. The library runs from cherries and lipstick to portraits and landscapes. No advertising badge on Google Play, the install is 20.7 MB, and both stores rate it above 4.6 on 1.5 million ratings combined.

Game information

DeveloperAlexey Grigorkin

Version0.3.28 (Android) · 1.8.15 (iOS)

Size9.57 MB (Android) · 21 MB (iOS)

Price / In-appFree

Contains adsNo

In-app purchasesYes

Content rating4+

Requires (Android)Android 5.0+

Requires (iOS)iOS 9.0+

Offline modeDownloaded pictures colour offline; the library needs a connection

Interface languagesEN, FR, DE, IT, PT, RU + 1 more

Store rating (Google Play)4.6 from 607,582 ratings

Installs50M+

Updated by developer2025-08-05

Data checked2026-09-07

Specs come from the official store listings and were last checked on 2026-09-07. Developers change pricing and requirements — check the store page before installing.

Sandbox Review: Colour by Number in 20.7 MB

Numbered Cells, One Colour at a Time

A grid of squares carries numbers, a palette sits along the bottom, and selecting a colour highlights every cell that takes it. Filling proceeds by tapping or dragging, with a magnifier for dense sections, and the picture emerges gradually rather than all at once. There is no timer, no score and no failure — the entire appeal is the steady disappearance of numbers into a finished image, which is why the genre found an audience that has nothing to do with games. Progress saves as you go, so a half-finished picture waits exactly where it was left.

A Library Rather Than a Campaign

Images are browsed in a feed: fruit, cosmetics, animals, anime portraits, landscapes, seasonal collections, with new ones added regularly and favourites saved for later. Finished pieces can be exported or shared, and a replay animation shows the picture filling itself in. The variety is what sustains it — a two-minute cherry and a forty-minute portrait sit in the same list, so a session can be as long as the time available rather than as long as a level demands. Daily free pictures keep the library moving for anyone who never subscribes.

20.7 MB, and Subscriptions From $2.99

The install is 20.7 MB on iPhone — the smallest of any game in this catalogue by an order of magnitude, because the content is grids of numbers rather than rendered art. Subscriptions unlock the premium library: the App Store lists $2.99 weekly, $7.99 monthly and $39.99 annually, with cheaper monthly and annual tiers at $3.49 and $19.49. Google Play carries no advertising badge, showing 4.6 stars from 608,000 reviews on 50 million installs, against 4.7 from 977,000 App Store ratings. The Play listing has not been updated since March 2025, which for a content app matters less than for a game.

Pros

A 20.7 MB install, the smallest game here
No timers, scores or failure states
Images range from two minutes to an hour
No advertising badge on the Play listing
Rated 4.7 on the App Store across 977,000 ratings

Cons

The weekly subscription costs $2.99 every week
Most of the library sits behind a subscription
Nothing about it is a game in the usual sense
The Play listing was last updated in March 2025

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Verdict

The most restful thing in this catalogue and one of the smallest: 20.7 MB, no adverts, no timers, and a library that stretches from a two-minute cherry to an hour-long portrait. The subscription is the catch, and the weekly rate at $2.99 is poor value against $39.99 a year. Free images are enough for most people.

Gameplay6.5Colouring by number — deliberately mechanical, with no decisions to make.

Controls8.5Tap and drag with a magnifier; precise even on dense sections of a grid.

Replay value7.5A library that keeps growing, though the activity never varies.

Graphics & sound7.5Clean pixel artwork and a quiet interface that stays out of the way.

Monetisation6.5No adverts, but the good library needs a subscription from $2.99 a week.

7.1out of 10 · weighted average of the five scores above

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Frequently asked questions

Can it be used offline?

Images already downloaded colour without a connection, which makes it a genuine flight or waiting-room app. Browsing the library, downloading new pictures and syncing progress between devices all need the internet, so it is worth loading a few before travelling.

What does it sell?

Subscriptions to the premium library: $2.99 a week, $7.99 a month or $39.99 a year, with alternative monthly and annual tiers at $3.49 and $19.49. A free selection of images is always available, and nothing is sold per picture.

What does it need to run?

20.7 MB and iOS 9 or later — it will run on almost any phone or tablet still switched on, including hardware more than a decade old. That is the practical advantage of an app made of numbered grids.

Is there anything social?

Only sharing: finished images can be exported or posted, and a replay animation makes them presentable. Nobody colours together, and there are no leaderboards — which suits an activity people use to wind down rather than to compete.

How long does a picture take?

Two minutes for a small icon, up to an hour for a detailed portrait, and progress saves automatically at any point. That range is the reason it works as a filler: the same app covers a bus stop and an evening.