# Sudoku Plus - Number Puzzles — 4x4,9x9,16x16 unique sudokus

> Classic Sudoku puzzles with multiple grid sizes, difficulties, and smart tools. (iPhone/iPad app by 庾涛 沈.)

- Source: https://appshunter.io/ios/app/sudoku-plus-number-puzzles/id6446406315 (this page in markdown: same URL + `.md`)
- Developer: [庾涛 沈](https://appshunter.io/developer/1658449694)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 9 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2023-03-21
- Data updated: 2026-07-05
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-plus-number-puzzles/id6446406315/reviews.md

## What is Sudoku Plus?

Sudoku Plus brings the timeless logic puzzle to your fingertips with a modern, elegant design and features for every skill level.

  THREE GRID SIZES
  • 4×4 — Perfect for beginners and quick brain warm-ups
  • 9×9 — The classic Sudoku experience you know and love
  • 16×16 — An extreme challenge using numbers 1-9 and letters A-F

  THREE DIFFICULTY LEVELS
  • Easy, Medium, and Hard — whether you're a casual player or a seasoned pro,
  there's always a challenge waiting for you

  SMART TOOLS
  • Pencil Marks — Jot down candidates in any cell. On 16×16 grids, smart dot/number toggle keeps things readable
  • Full Undo & Redo — Made a mistake? Go back as many steps as you need
  • Hints — Stuck? Watch a short video to reveal the answer for a cell
  • Real-time conflict detection with haptic feedback

  FAIR LEADERBOARDS
  • Game Center integration with global rankings

  NEVER LOSE PROGRESS
  • Auto-save on exit — pick up right where you left off
  • Progress cards show your completion rate, time, and last played date

  BEAUTIFUL DESIGN
  • Soft blue and white color palette with dark mode support
  • Rounded corners, subtle shadows, and smooth animations
  • Optimized for both iPhone and iPad

  Download Sudoku Plus and start training your brain today.

## Key features

- Multiple grid sizes (4x4, 9x9, 16x16)
- Three difficulty levels (Easy, Medium, Hard)
- Pencil marks and undo/redo functionality
- Hints with optional video ads
- Global leaderboards via Game Center
- Auto-save and progress tracking
- Dark mode support

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sudoku-plus-number-puzzles/id6446406315/reviews.md

### 5/5 — Thank you!,,

*2026-03-01*

The pencil marks are again a readable size.

**Developer response:** Thank you for your feedback! We're sorry about the inconvenience caused by the small pencil marks. We will improve this issue in the next update to make them easier to read. We appreciate your support and hope you'll give it another try after the update!

### 1/5 — Was great, now pencil marks are pencil dots

*2026-02-22*

Great puzzles, worthy of a 4, the change I would have made was to leave the number you are working lit across the puzzle.  Now the game doesn’t rate 1 star, the penciled numbers are too small to be read, the end of this game for me.

**Developer response:** Thank you for your feedback! We're sorry about the inconvenience caused by the small pencil marks. We will improve this issue in the next update to make them easier to read. We appreciate your support and hope you'll give it another try after the update!

## Frequently asked questions about Sudoku Plus

### What grid sizes does Sudoku Plus offer?

Sudoku Plus offers three grid sizes: 4x4 for beginners, the classic 9x9, and an extreme 16x16 grid for a significant challenge.

### Can I get help if I'm stuck in Sudoku Plus?

Yes, Sudoku Plus provides hints to help you when you're stuck. You can watch a short video to reveal the answer for a specific cell.

### Does Sudoku Plus have ads?

Yes, Sudoku Plus contains advertisements. These ads may appear as short videos when you request a hint.

### How does Sudoku Plus save my progress?

Sudoku Plus automatically saves your progress whenever you exit the game, allowing you to pick up exactly where you left off.

### What devices is Sudoku Plus available on?

Sudoku Plus is optimized for both iPhone and iPad, offering a seamless experience across Apple devices.

### What is the age rating for Sudoku Plus?

Sudoku Plus has an age rating of 4+, making it suitable for a wide range of players.

### How often is Sudoku Plus updated?

The latest version of Sudoku Plus is 1.2.1, last updated on March 7, 2026. This indicates a recent update, suggesting ongoing support and potential for future improvements.

### Can I compete with others in Sudoku Plus?

Yes, Sudoku Plus integrates with Game Center to provide fair leaderboards with global rankings, allowing you to compare your performance with other players.

## Version history (last 5 releases)

### 1.2.1 — 2026-03-07

- BUG Fix

### 1.2.0 — 2026-03-03

Save game data to iCloud

### 1.1.3 — 2026-02-26

Optimized the pencil mark font size to make the marks larger.

### 1.1.2 — 2026-02-25

Bug fixed

### 1.1.1 — 2026-02-18

Fix bugs and improve performance
Add leaderboards in Game Center.

## Apps similar to Sudoku Plus

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [MultiSudoku: Samurai Sudoku](https://appshunter.io/ios/app/multisudoku-samurai-sudoku/id1136675288) | 4.8 (2,249) | Free | Games |
| [数独大全-超右脑计划](https://appshunter.io/ios/app/id1589599245) | 4.7 (734) | Free | Games |
| [Sudoku_Titan](https://appshunter.io/ios/app/sudoku-titan/id6736524445) | — | Free | Games |
| [Sudoku Board](https://appshunter.io/ios/app/sudoku-board/id962766004) | 4.5 (6,708) | Free | Games |
| [数独训练营—经典數獨益智游戏](https://appshunter.io/ios/app/id1546479271) | — | Free | Games |
| [™ Sudoku 4x4](https://appshunter.io/ios/app/sudoku-4x4/id1447590387) | 4.3 (40) | Free | Games |

## More apps by 庾涛 沈

- [Tracepad - Remote Trackpad](https://appshunter.io/ios/app/tracepad-remote-trackpad/id1658454999)
- [Minesweep+](https://appshunter.io/ios/app/minesweep-plus/id6756476910)
- [Joker Gambit](https://appshunter.io/ios/app/joker-gambit/id6760275623)
- [Arithmons](https://appshunter.io/ios/app/arithmons/id6761610472)

All apps by 庾涛 沈: https://appshunter.io/developer/1658449694

## Related topics

[sudoku 16x16](https://appshunter.io/ios/topics/sudoku-16x16)

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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 2026-07-05.*