# Coldoku — Sudoku with colors and shapes

> Color and shape-based logic puzzle game, a Sudoku variation. (iPhone/iPad app by Martin Rosenthal.)

- Source: https://appshunter.io/ios/app/coldoku/id6479543662 (this page in markdown: same URL + `.md`)
- Developer: [Martin Rosenthal](https://appshunter.io/developer/1728895149)
- Category: Games, Entertainment, Puzzle, Trivia
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 13 MB
- Languages: English, German
- Released: 2024-03-18
- Data updated: 2026-07-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/coldoku/id6479543662/reviews.md

## What is Coldoku?

Almost everyone knows it and has certainly played it before. Sudoku is a logic game that is usually played on paper and with the numbers 1 to 9.

Coldoku, on the other hand, is a great variation of the classic Sudoku. The main difference is that colors and shapes are used instead of numbers.

The aim of Coldoku is to place the playing cards in such a way that each color and shape appears only once in all rows and columns.

Coldoku is a brain game for children, teenagers and adults.

## Key features

- Color and shape-based gameplay
- Logic puzzle mechanics
- Single-player brain game
- Suitable for all ages
- Intuitive interface

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/coldoku/id6479543662/reviews.md

### 5/5 — Schön umgesetzt

*2026-03-30, version 1.4*

Farbenfroh und klasse kinderfreundlich. Pädagogisch wertvoll und Spielspaß für alle Altersklassen!

### 5/5 — Wie Sudoku, nur mit Formen und Farben

*2025-06-25, version 1.3*

Einfach zu verstehen und trotzdem mit viel Spielspaß. Zum Glück ohne Werbung, kann man gut Kindern zum Spielen geben, danke dafür!

## Frequently asked questions about Coldoku

### What is Coldoku?

Coldoku is a logic puzzle game that adapts the classic Sudoku format by using colors and shapes instead of numbers. The goal is to ensure each color and shape appears only once in every row and column.

### How do you play Coldoku?

You play Coldoku by strategically placing cards with different colors and shapes into a grid. The rule is that no color or shape can be repeated within the same row or column.

### Is Coldoku suitable for children?

Yes, Coldoku is rated for ages 4 and up, making it suitable for children, teenagers, and adults. It's designed as a brain game for all age groups.

### Does Coldoku have ads?

No, Coldoku does not contain advertisements. It is a completely ad-free experience for players.

### Can I play Coldoku offline?

The provided data does not specify if Coldoku supports offline play. However, as a logic puzzle game, it is likely playable without an internet connection.

### What devices can I play Coldoku on?

Coldoku is available on iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

### How often is Coldoku updated?

The latest version of Coldoku was released on 2025-12-12, indicating recent development activity. The app is actively maintained by its developer.

### What makes Coldoku different from regular Sudoku?

The primary difference is the use of colors and shapes instead of numbers 1-9. This variation offers a fresh visual and cognitive challenge while retaining the core logic principles of Sudoku.

## Version history (last 5 releases)

### 1.5 — 2026-07-12

The splash screen logo has been updated with the current AMAViSiON logo.

### 1.4 — 2025-12-12

Fixes some Display Error on the Hint View Size on iPads

### 1.3 — 2024-04-27

This new version of Coldoku fixes a bug in the level selector.

### 1.2 — 2024-04-04

This version now contains the final bug fix so that all levels can be played through.

### 1.1 — 2024-03-25

A bug that made it impossible to solve level 25 has been fixed in this version.

## Apps similar to Coldoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Mental Maths - Test and Learn](https://appshunter.io/ios/app/mental-maths-test-and-learn/id1114936756) | 5.0 (1) | Free | Games |
| [Disklosed](https://appshunter.io/ios/app/disklosed/id6448662724) | — | Free | Games |
| [Physics Quiz - Trivia](https://appshunter.io/ios/app/physics-quiz-trivia/id1170803082) | 5.0 (2) | Free | Games |
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## More apps by Martin Rosenthal

- [Wizard of Prime](https://appshunter.io/ios/app/wizard-of-prime/id6477298754)
- [Your Value Rank](https://appshunter.io/ios/app/your-value-rank/id6670221433)
- [Gesnum](https://appshunter.io/ios/app/gesnum/id6683306145)
- [Lab Junk](https://appshunter.io/ios/app/lab-junk/id6741333587)

All apps by Martin Rosenthal: https://appshunter.io/developer/1728895149

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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 2026-07-24.*