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 — the 1,000 Zen 9x9 puzzles and the 6x6 warm-up are free to play, with ads.
· One purchase opens Sun and Moon — 2,000 more puzzles, all 3,000 in hand — and removes every ad.
· There is a single in-app purchase. A one-time payment, not a subscription.
Contact: support@kingdoku.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
· New icon — numbers and a crescent moon on a night-sky grid. The Zen, Sun and Moon pack icons are new too.
· Colours now match the icon: deep navy with gold.
· Fixed the number pad being cut off at the bottom of the game screen on some iPhones.
· Fixed a rare freeze when starting a puzzle.
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
- 49 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 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+
- Contains
Advertising
- In-App Purchases
Yes
- All Packs (Zen+Sun+Moon) $2.99
- Copyright
- © 2026 TYstudio