Cheondoku - Easy Sudoku

New to number puzzles? That is perfectly fine.
Cheondoku is sudoku that deepens slowly, without pressure.

◆ Zen — 1,000 Puzzles, Free
A thousand 9x9 sudoku puzzles, open from the start. Quiet in character, and well suited to the hour before sleep or a moment of meditation.

◆ 6x6 Warm-Up — Free
Start small and easy. Ideal for anyone picking up sudoku for the first time.

◆ Sun and Moon — Opened by a Single Purchase
Not separate apps: two more paths that open inside this one.
· Sun — Vitality. The first puzzle of the morning, at a cafe. 1,000 new puzzles.
· Moon — Quiet. A calm night when rest won't come. 1,000 new puzzles.
Three palettes, three depths. A 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.

◆ Our Ad Policy, Stated Plainly
· Your first 3 puzzles have no ads at all.
· From the 4th puzzle on, one interstitial ad appears every 2 puzzles, with a minimum 90-second gap.
· There are no banner ads.
· One purchase opens all 3,000 puzzles and the ads disappear entirely.

[How It Works]
· Free to download — Zen 9x9 and 6x6 are free to play, with ads.
· There is a single in-app purchase. A one-time payment, not a subscription.
· Puzzles are bundled in the app, so you can solve offline (ads require a connection).
· Install and start playing right away — nothing to register.

Contact: support@kingdoku.com
Privacy Policy: https://kingdoku.com/en/privacy