# Grand Sudoku: 1000 Levels — Big, calm sudoku. 1000 levels

> Big, calm sudoku. 1000 levels (iPhone/iPad app by SEONYONG LEE.)

- Source: https://appshunter.io/ios/app/grand-sudoku-1000-levels/id6792606983 (this page in markdown: same URL + `.md`)
- Developer: [SEONYONG LEE](https://appshunter.io/developer/6775892940)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 90 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China)
- Released: 2026-07-21
- Data updated: 2026-08-31
- User reviews in markdown: https://appshunter.io/ios/app/grand-sudoku-1000-levels/id6792606983/reviews.md

## What is Grand Sudoku?

Grand Sudoku is a calm, comfortable sudoku with big numbers and 1000 levels. No complicated rules, no timers pressuring you, no mistake limits.

GREAT FOR YOU IF
- You want puzzles with large, easy-to-read numbers
- You dislike games that end after 3 mistakes
- You enjoy one calm brain workout a day
- You are new to sudoku and want a friendly guide

KEY FEATURES
- A journey of 1000 levels, from very easy to expert
- Daily puzzle: a fresh board every day
- Free play: endless boards at any difficulty
- Your records: streaks and a play calendar
- How to play: learn sudoku easily with pictures
- Pencil notes, undo, and generous hints

DESIGNED FOR PEACE OF MIND
- No mistake limits. Wrong numbers are simply marked, fix them anytime
- No timer shown while you play
- Progress is backed up automatically by your device - reinstall and continue
- No sign-up, no login, ever

EVERY PUZZLE IS SOLVABLE BY LOGIC
No guessing required. Every board has exactly one solution, verified by logic.

Download now and enjoy sudoku at your own pace.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $2.99 | one-time |



## Version history (last 4 releases)

### 1.0.4 — 2026-08-21

Added Pro features: a 3-mistake limit, live number highlighting, notes auto-fill, and detailed statistics.

### 1.0.3 — 2026-08-01

All 1000 levels are now open to everyone! Clear them in order and challenge yourself to the very end.

### 1.0.2 — 2026-07-29

Minor improvements and stability fixes.

### 1.0 — 2026-07-21

No release notes.

## More apps by SEONYONG LEE

- [Daily Bible: Verse & Prayer](https://appshunter.io/ios/app/daily-bible-verse-and-prayer/id6775892937)
- [Pilmori - Film Camera](https://appshunter.io/ios/app/pilmori-film-camera/id6776468544)
- [Intonaire](https://appshunter.io/ios/app/intonaire/id6779674961)
- [Lumen · Daily Bible](https://appshunter.io/ios/app/lumen-daily-bible/id6780531841)
- [연애도감 - AI 채팅](https://appshunter.io/ios/app/ai/id6780905411)
- [ClickTimer - Ticketing Timer](https://appshunter.io/ios/app/clicktimer-ticketing-timer/id6782375382)

All apps by SEONYONG LEE: https://appshunter.io/developer/6775892940

## Related topics

[sudoku levels](https://appshunter.io/ios/topics/sudoku-levels)

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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 2026-08-31.*