# Sudoku Zen: Number Logic — Endless number puzzles

> Endless number puzzles (iPhone/iPad app by Yuki Okawa.)

- Source: https://appshunter.io/ios/app/sudoku-zen-number-logic/id6785088442 (this page in markdown: same URL + `.md`)
- Developer: [Yuki Okawa](https://appshunter.io/developer/1867195492)
- Category: Games
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 21 MB
- Languages: American English
- Released: 2026-06-29
- Data updated: 2026-07-22
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-zen-number-logic/id6785088442/reviews.md

## What is Sudoku Zen?

Sudoku Zen is a clean, relaxing Sudoku (number place) game with an endless supply of puzzles. Every board is generated by an algorithm on your device and guaranteed to have exactly one solution — so you never run out and never need an internet connection.

Features:
- Endless puzzles across four difficulties: Easy, Medium, Hard and Expert
- Every puzzle is guaranteed to have a unique solution
- Mistake detection with a 3-strike limit, just like the classics
- Pencil notes, smart highlighting and auto-clean notes
- Hints when you get stuck
- Time tracking with best times, win rate and streaks per difficulty
- Auto-save: pause anytime and continue later
- Light & dark themes, English & Japanese
- Fully offline — no account, no sign-in

Relax, focus, and solve. Perfect for a quick break or a long, satisfying session.


## Version history (last 2 releases)

### 1.0.1 — 2026-07-19

Fixed minor bugs.

### 1.0 — 2026-06-29

No release notes.

## More apps by Yuki Okawa

- [まとめてQR](https://appshunter.io/ios/app/qr/id6757633166)
- [Gratie - Gratitude Journal](https://appshunter.io/ios/app/gratie-gratitude-journal/id6784641065)
- [Leafy - Plant Care Reminder](https://appshunter.io/ios/app/leafy-plant-care-reminder/id6784672249)
- [Lull: Focus & Sleep Sounds](https://appshunter.io/ios/app/lull-focus-and-sleep-sounds/id6784733202)
- [Trailpack: Camp Checklist](https://appshunter.io/ios/app/trailpack-camp-checklist/id6784964041)

All apps by Yuki Okawa: https://appshunter.io/developer/1867195492

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-22.*