Rainboku

Rainboku

Sudoku but with colors

5 ratings
3 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 9, 2025
  • June 25, 2026

Features

Rainboku screenshot #1 for iPhone
Rainboku screenshot #2 for iPhone
Rainboku screenshot #3 for iPhone
Rainboku screenshot #4 for iPhone
Rainboku screenshot #5 for iPhone
iphone
ipad
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About

Enjoy a visually stunning and logic-based puzzle experience that replaces numbers with colors. Engage in real-time multiplayer challenges, utilize a smart hint system to learn advanced techniques, and find your zen with a distraction-free interface. Play solo or with friends, anytime, anywhere.

Logic-based color deduction puzzles
Real-time multiplayer battles
Smart hint system for learning
Daily challenges
Offline play
Customizable themes
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What's New in Rainboku

1.0.61

June 25, 2026

Thanks for playing Rainboku, hope you dig it! • Multiplayer • Long press for paint mode • Updated sounds • Bug fixes

More
1

In-App Purchases

$0.99

Pro Upgrade

Unlock stats, history, all themes, and color palettes.

User reviews

Great game! Highly recommend!

Highly recommend the game to pass the time and go mental activity. Multiplayer with friends was a lot of fun!

Great fun!

Love the colors and functionality-

Incredible Game

Very fun to play. Perfect for passing time and challenging your brain!

Developer apps

FAQ

What is Rainboku?

Rainboku is a logic puzzle game that uses colors instead of numbers. It offers a calming experience with features like real-time multiplayer, a smart hint system to help you learn, and daily challenges.

Does Rainboku have ads?

No, Rainboku does not contain advertisements. The app is free to play and offers in-app purchases for additional content or features.

Can I play Rainboku with friends?

Yes, Rainboku features real-time multiplayer where you can host private rooms to race friends or collaborate on puzzles. This allows for competitive and cooperative gameplay.

How does the smart hint system in Rainboku work?

The smart hint system in Rainboku teaches you why a move is correct, helping you master advanced techniques naturally. It's designed to enhance your logic skills rather than just providing answers.

Can I play Rainboku offline?

Yes, Rainboku supports offline play. You can enjoy the puzzles and sharpen your brain without needing an internet connection, making it convenient for any time or place.

What devices is Rainboku available on?

Rainboku is available on iPhone, iPad, and iPod. It is designed for iOS devices, offering a consistent experience across Apple's mobile platforms.

How often is Rainboku updated?

The latest version of Rainboku is 1.0.59, last updated on January 14, 2026. Updates typically include new features, bug fixes, and performance improvements.

What is the age rating for Rainboku?

Rainboku has an age rating of 12+. This indicates it is suitable for users aged 12 and older, offering engaging content appropriate for this demographic.