# Colour by Numbers

> Control a Stockholm tower's light installation by changing floor colors. (iPhone/iPad app by Milo Galdi Laven22246297167.)

- Source: https://appshunter.io/ios/app/colour-by-numbers/id806178097 (this page in markdown: same URL + `.md`)
- Developer: [Milo Galdi Laven22246297167](https://appshunter.io/developer/806178100)
- Category: Lifestyle, Utilities
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.3 · 27 MB
- Languages: American English
- Released: 2014-02-04
- Data updated: 2026-06-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/colour-by-numbers/id806178097/reviews.md

## What is Colour by Numbers?

Colour by Numbers is a permanent light installation in the tower at Telefonplan in Stockholm. With this app, you can change the colours of the light in the tower. The tower is 72 meters high and has 20 floors, of which the top ten are used for Colour by Numbers. The light installation is visible in many parts of Stockholm, within a radius of ten kilometers.

Choose the floors that you want to colour by tapping on a floor or by swiping over the tower. You can deselect floors in the same way. Spin the colour wheels to colour the selected floors. You can create all colours by mixing red, green and blue.

Share live images of the colours you create.

www.colourbynumbers.org

## Key features

- Control tower light installation
- Change colors of specific floors
- Mix red, green, and blue for custom colors
- Share live images of creations
- Interactive tower visualization

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/colour-by-numbers/id806178097/reviews.md

### 1/5 — Camera is not working

*2024-12-23, version 1.3*

Camera is not working

### 5/5 — Amazing

*2017-06-03, version 1.1*

Amazing

## Frequently asked questions about Colour by Numbers

### What is Colour by Numbers?

Colour by Numbers is a permanent light installation in a Stockholm tower that you can control via a mobile app. You can change the colors of the tower's floors and share your creations.

### How do I control the colors in Colour by Numbers?

You can control the colors by tapping on individual floors or swiping over the tower to select them. Then, spin the color wheels to mix red, green, and blue to create your desired colors.

### Can I use Colour by Numbers outside of Stockholm?

While the light installation is physically located in Stockholm and visible within a ten-kilometer radius, you can use the app to control the colors from anywhere.

### What devices does Colour by Numbers support?

Colour by Numbers is supported on iPhone and iPod devices.

### Is Colour by Numbers free to use?

Yes, Colour by Numbers is available for free and does not feature in-app purchases or advertisements.

### How often is Colour by Numbers updated?

The latest version of Colour by Numbers is 2.0 (9), which was last updated on July 11, 2025. Updates typically occur to improve functionality and stability.

### What is the age rating for Colour by Numbers?

Colour by Numbers has an age rating of 4+, making it suitable for younger users and families.

### What is the rating for Colour by Numbers?

Colour by Numbers has a rating of 3.7 stars based on 3 user ratings.

## Version history (last 5 releases)

### 2.0 (9) — 2025-07-11

We’ve updated the Colour by Numbers app! 
While most changes are behind the scenes, we’ve made some improvements to enhance your experience.

What’s new: 
- A slightly updated design for a fresh look. 
- The video stream is now working again. 

Thank you for using Colour by Numbers! 
Have fun lighting up the tower!

### 1.3 — 2018-03-13

Fixed a bug that could cause the colour wheels to disappear on some devices.

### 1.2 — 2017-10-23

64bit architecture
iOS 11 support

### 1.1 — 2014-03-02

new screenshots

### 1.0 — 2014-01-30

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-07.*