Sudoku – Classic Number Puzzle
Byeongjin Lee Games iPhoneiPadiPod touch
Sudoku – Classic Number Puzzle is a free Games app for iPhone and iPad by Byeongjin Lee. Requires iOS 17.0. Updated August 26, 2026.
- Price
- Free
- on the App Store
- Size
- 16 MB
- Age 4+
- Updated
- Aug 26
- 2026 · v0.2.5
Screenshots
About Sudoku – Classic Number Puzzle
A classic sudoku with the soul of a paper puzzle. The givens are printed in crisp type; your answers go in with a handwritten pencil touch. It feels less like a screen and more like the puzzle page of a morning paper. ◆ WHY YOU'LL LIKE IT - Quiet, focused solving — no flashy effects - Build a daily brain-training habit, one puzzle a day - Pure sudoku: no hints, no hand-holding ◆ FEATURES - Five difficulties: Easy, Medium, Hard, Expert, Extreme - Difficulty means technique, not clue count — Extreme genuinely needs the advanced patterns, and Expert stops right below them - Every puzzle has exactly one solution — solvable by logic alone - Daily Puzzle: the same board for everyone, playable only that day - Attendance-style streaks with a calendar record - Pencil notes, undo and redo - Same-number and row/column/box highlighting - Duplicates turn red — but the answer is never given away - A wrong move never ends the game; finish at your own pace - Best and average times per difficulty, plus separate no-notes records - Game Center leaderboards: best times and a daily ranking - Records and your game in progress follow you across devices over iCloud - Light, dark, or follow the system - Fully playable offline ◆ ON IPAD - Write answers straight into a cell with Apple Pencil — the handwriting is recognized as you go - Double-tap the Pencil to switch between notes and answers - A wide layout that puts the header on one line and keeps the board large ◆ ACCESSIBILITY - VoiceOver labels for every cell and key - Dynamic Type across the interface Open today's puzzle and start your streak. All you need is a pencil.
What’s new
Version 0.2.5 · Updated August 26, 2026
• When an ad doesn't fill, the space now shows one of our other apps instead of sitting blank
Play today's Inkspill puzzle
Spread your ink until the whole board is one color, within the move limit. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
App privacy
The developer, Byeongjin Lee, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, Product Personalization, App Functionality, Other Purposes
Alternatives to Sudoku – Classic Number Puzzle
Looking for apps like Sudoku – Classic Number Puzzle? Here are 6 similar apps on the App Store. The highest rated is Paper Sudoku: Classic & Killer (4.8/5), and all 6 are free to download.
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Sudoku Pencil & Paper
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700 Solitaire Games Collection
4.7
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Paper Sudoku: Classic & Killer
4.8
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Solitaire: Collection
4.8
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Nonograms CrossMe
4.7
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Jigsawgram: Jigsaw Puzzle
4.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Sudoku – Classic Number Puzzle | – | Free | August 26, 2026 | |
| Sudoku Pencil & Paper | – | Free | Aug 28, 2026 | Compare |
| 700 Solitaire Games Collection | 4.7 / 5 (2,280) | Free | Oct 19, 2026 | Compare |
| Paper Sudoku: Classic & Killer | 4.8 / 5 (1,367) | Free | Oct 21, 2026 | Compare |
| Solitaire: Collection | 4.8 / 5 (2,246) | Free | Jun 28, 2026 | Compare |
| Nonograms CrossMe | 4.7 / 5 (2,344) | Free | Sep 16, 2026 | Compare |
| Jigsawgram: Jigsaw Puzzle | 4.8 / 5 (13,125) | Free | Aug 25, 2026 | Compare |