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Last updated on: 2026-07-28
Android Apps > Puzzle > Rainboku
Rainboku icon

Rainboku

1.0.61
Former Plum
0.00
0 reviews
50,000+
Downloads
Free

Sudoku in color. Now with Multiplayer!

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iOS version

About Rainboku

Rainboku is a puzzle app developed by Former Plum.

Download Statistics

Rainboku has been downloaded 66 thousand times. In the last 30 days, the app was downloaded 5.4 thousand times.

User Ratings

The app has no ratings yet.

App Information

Rainboku is FREE to download. The APK download size is 25.18 MB. The latest version available is 1.0.61. The last update was on June 22, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play January 2026.

Description
Sudoku in color - Each puzzle is a work of art.

It’s the same brain boosting logic you love, transformed into a calm, beautiful, and deeply satisfying experience.

NEW: Play With Friends! Challenge your friends in multiplayer battles. Race to finish the board, compete for the high score, or work together to solve harder puzzles.

Learn, Don't Just Solve. Stuck? Don't just ask for an answer. Our new smart hint system teaches you why a move is correct. Learn advanced techniques naturally and watch your logic skills flourish.

Pure Zen, No Distractions. Whether you have 5 minutes for a coffee break or an hour to burn, find your zen with a clean, beautiful interface designed to calm your mind while sharpening your brain.

FEATURES:
• Logic, Not Math: No numbers required. Just pure color deduction.
• Real-Time Multiplayer: Host private rooms and race your friends or work together.
• Daily Challenges: A fresh puzzle every day that puts everyone on the same playing field.
• Smart Teaching: An interactive guide that helps you master the game, from beginner to expert.
• Stats & Streaks: Track your best times, build your calendar streak, and climb the global leaderboards.
• Offline Play: No internet? No problem. Rainboku is ready whenever you are.
• Customize Your Vibe: Unlock curated color palettes and themes to match your mood.

A little logic. A lot of color. Pure calm.

Recent changes:
Thanks for playing Rainboku, hope you dig it!

• New Daily Puzzle every morning, challenge yourself or a friend!
• Multiplayer lobby, rematch, and stats
• Tips and Hints
• New Sounds
• Bug fixes
Show more Show less

More data about Rainboku

Price Free to download
Total downloads 66 thousand
Recent downloads 5.4 thousand
Rating No ratings
Ranking Not ranked
Version 1.0.61
APK size 25.2 MB
Number of libraries ?
Suitable for Everyone
Ads NO ads

App Performance Report

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Rainboku compared with similar apps

Common keywords of similar apps

Color Multiplayer Rainboku Work Calm Friends Pure Beautiful Race Learn Smart Zen Playing Stats Logic Puzzle Sudoku Brain Play Challenge Solve Daily

Keywords missing from this app

Puzzles Game Classic Games Offline Experience Number Levels Enjoy Mind Free Easy Challenges Solving Train Skills Perfect Master Players Time Fun Relax Thinking Training Designed Features App Logical Relaxing World Start Grid Improve Strong Beginners Day Numbers Expert Anytime Difficulty Simple Hints

Downloads over time

Rainboku has been downloaded 66 thousand times. Over the past 30 days, it averaged 180 downloads per day.

Changelog of Rainboku

Show changelog

Developer information for Former Plum

Former Plum

formerseagull@gmail.com

Legal name:

Address:

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Comments on Rainboku for Android

★★★★★ EbiKatsu · Apr 8, 2026
Nice for those who don't like seeing numbers, but I still prefer numbers to color lol
★★★★★ Tiffany Johk · Feb 21, 2026
Absolutely phenomenal. The whole color sudoku is such a fun twist and arguably better than playing regular sudoku. The look and feel of the app is super friendly and easy to use.
★★★★☆ Bougoffayacin Yacin5666 · Apr 26, 2026
Great game best time I had playing Sudoku but I have some problems the best time for hard and easy levels has been reset to 0 for no reason the number of flawless levels keeps resetting to 0 no matter how much I get and my win streak in random mode doesn't register

Google Play Rankings for Rainboku

This app is not ranked

Technologies used by Rainboku

Rainboku is requesting 11 permissions and we don't have library information (yet).
Show details
Top new apps Apps on sale Popular Puzzle Games Today's trending apps Apps other people are watching
Zendoku-Sudoku Game icon Zendoku-Sudoku Game
Sudoku Plus: Rewarded Sudoku+ icon Sudoku Plus: Rewarded Sudoku+
Sudoku: Classic Logic Puzzle icon Sudoku: Classic Logic Puzzle
Sudoku Friends - Multiplayer icon Sudoku Friends - Multiplayer
Sudoku - classic number game icon Sudoku - classic number game
Kodoku - Zen Puzzle icon Kodoku - Zen Puzzle
Sudoku Color - Classic Puzzle! icon Sudoku Color - Classic Puzzle!
Sudoku - Brain Training Game icon Sudoku - Brain Training Game

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