Cheondoku - Easy Sudoku
Sudoku for a calm, quiet mind
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
New to number puzzles? That is perfectly fine.
Cheondoku is sudoku that deepens slowly, without pressure.
◆ 6x6 Warm-Up — Free
Start small and easy. Ideal for anyone picking up sudoku for the first time.
◆ Zen, Sun, Moon — Three Paths (1,000 puzzles each)
· Zen — Stillness. Before sleep, during meditation.
· Sun — Vitality. The first puzzle of the morning, at a cafe.
· Moon — Quiet. A calm night when rest won't come.
Three palettes, three depths. A 3,000-puzzle journey that grows with you.
◆ Difficulty for Everyone
From beginner to easy. Hints are there when you need them, and mistakes are part of the process.
◆ Quiet Design
No flashy effects — just an interface that lets your thoughts settle.
Ten minutes a day to clear your mind.
[How It Works]
· Free to download — Zen 9x9 and 6x6 are free to play with ads.
· Purchase any one pack (Zen / Sun / Moon) and ads are removed entirely.
· All in-app purchases are one-time payments. No subscriptions.
Contact: support@kingdoku.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Stability improvements and small refinements.
The developer, TYstudio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TYstudio
- Size
- 61.2 MB
- Category
- Puzzle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- All Packs (Zen+Sun+Moon) $4.99
- Sun Pack (陽) $1.99
- Moon Pack (月) $1.99
- Zen Pack (禪) $1.99
- Copyright
- © 2026 TYstudio