Hue9: Color Sudoku

Hue9: Color Sudoku

Daily Puzzles & Zen Logic

28 ratings
12 reviews
$9.99
In-App Purchases

Details

  • Released
  • Updated
  • February 25, 2026
  • August 30, 2026

Features

Hue9: Color Sudoku screenshot #1 for iPhone
Hue9: Color Sudoku screenshot #2 for iPhone
Hue9: Color Sudoku screenshot #3 for iPhone
Hue9: Color Sudoku screenshot #4 for iPhone
Hue9: Color Sudoku screenshot #5 for iPhone
Hue9: Color Sudoku screenshot #6 for iPhone
iphone
ipad
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About

This game reimagines classic Sudoku puzzles with a vibrant color palette instead of numbers. It offers a minimalist, sensory logic experience to sharpen your brain and provide a moment of calm. Suitable for both Sudoku masters and casual players.

Color-based Sudoku puzzles
Sensory logic experience
Minimalist design
Brain sharpening
Zen moments
Show original description
+3

What's New in Hue9

2.0.2

August 30, 2026

Hue9 2.0.2 makes Board Appearance clearer. • Choose Colors only or Colors + symbols with a new control in Settings and during a game. • Hue9 now explains when the iOS Differentiate Without Color setting requires symbols. • Additional performance improvements and refinements across the app. Thanks for playing Hue9.

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In-App Purchases

$9.99

Hue9 Pro

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Events

Read more about Sudoku Beyond Color

Sudoku Beyond Color

Discover Hue9’s new Symbol Mode.

Aug 27, 2026 Sep 24, 2026

User reviews

Give option of colors only

Too busy with the shapes, allow colors only mode please or I won’t play this game any longer.

Response from developer

Hi! Colors-only mode is still available. Open Hue9 Settings → Accessibility and turn off Symbol Mode. If symbols remain visible, please also check iPhone Settings → Accessibility → Display & Text Size → Differentiate Without Color, as Hue9 respects that system setting. Sorry for the confusion — we’ll make this option easier to find.

Fun to play, colors are pleasing

Made with care. Good game to pass time and train the mind

Response from developer

Thanks so much for your kind review. I’m glad you’re enjoying Hue9 and finding the colors pleasing. It’s great to hear that it’s helping you pass the time and train your mind.

The app I’ve been looking for!

I love playing color sudoku, and have been looking for a simplified, beautifully laid out app version for many years. Was seriously thrilled to finally find this one! The design is super clean, pretty, and wonderfully customizable. Absolutely love it.

What I don’t love is the competitive-style play, and really wish it could be turned off. I want to play to relax and wind down, not be stressed about my time or losing points over a misclick.

I just don’t need to track my points in order to keep wanting to play. I’ve already been playing (other, much less aesthetically pleasing) color sudoku apps for years.

Ideally would like options to toggle off the points mode, as well as the option turn off individual features such as the timer, immediate notifications for wrong moves, and losing points for wrong moves or hints.

If I’ve made a mistake and get to the end of the puzzle and it’s not a win, I’ll know there’s a mistake. Or, another nice to have feature could be a “check for errors” button.

Other small nitpicky annoyances:

- the hint button is really easy to hit accidentally. I never want hints anyway, but losing points for hitting it makes its current placement extra stressful. Or maybe don’t move it, but add a confirmation check before giving the hint?

- often when I leave the app mid-game, then go back to the app, the app goes back to the home screen and that game is lost. I’ve played other similar apps that never did this, so not sure what the issue is here. (Note, this is just when I move out of the app; I’m not talking about closing the app and trying to go back.)

Anyway, overall I’m still so happy this app exists. Thank you!!
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Response from developer

Thank you so much for the detailed feedback! I took comments like yours to heart while building version 2.0.0, which is now finished and ready to be released. It includes a new Zen Mode for playing without points, timers, or pressure, plus game resume so you won’t lose your puzzle when leaving the app. I’ve also improved how mistakes and hints work to make the whole experience much more relaxing. Thanks again for helping me make the app better, I hope you’ll love 2.0.0 and maybe improve the rating!

Review

I need better instructions I didn’t understand it at first

Response from developer

Thanks for the honest feedback! I completely agreed that the app needed clearer instructions, so I’ve redesigned the onboarding and added a much easier-to-follow introduction in version 2.0.0. The update is already finished and ready to be released. Your feedback genuinely helped me focus on making the app easier to understand from the very first game. I hope you’ll give the new version a try!

Fun and unique

Really enjoy this twist on sudoku. Super relaxing.

Response from developer

Thanks for the kind words! I’m so glad you’re enjoying Hue9’s unique twist on Sudoku and finding it relaxing. Your feedback means a lot to me.

Developer apps

FAQ

What is Hue9?

Hue9 is a mobile game that reimagines the classic 9x9 Sudoku puzzle by using a vibrant palette of colors instead of numbers. It's designed to be a sensory logic experience that sharpens your brain and offers a moment of Zen.

How does Hue9 differ from traditional Sudoku?

The primary difference is the use of colors instead of numbers. This provides a fresh visual approach to the familiar logic challenges of Sudoku, focusing on pure logic and visual harmony.

Is Hue9 suitable for beginners?

Yes, Hue9 is designed for both Sudoku masters and casual puzzle lovers. Its minimalist challenge focuses on pure logic, making it accessible to new players while still engaging for experienced ones.

Does Hue9 have ads?

No, Hue9 is ad-free, allowing for an uninterrupted and immersive puzzle-solving experience.

What devices support Hue9?

Hue9 is available on iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

What is the age rating for Hue9?

Hue9 has an age rating of 4+, making it suitable for a wide range of players.

How often is Hue9 updated?

The latest version, 1.1.4, was released on March 23, 2026, indicating recent development activity. Updates typically aim to improve gameplay and add new content.

What is the user rating for Hue9?

Hue9 has a rating of 3.7 stars based on 7 ratings. This feedback helps the developer understand user sentiment and areas for improvement.