# Sudoku² Golden — Brain challenge everyday

> Infinite Sudoku puzzles with adjustable difficulty and note-taking features. (iPhone/iPad app by 春 李.)

- Source: https://appshunter.io/ios/app/sudoku-golden/id979029059 (this page in markdown: same URL + `.md`)
- Developer: [春 李](https://appshunter.io/developer/525245233)
- Category: Education, Entertainment
- Price: $1.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 10.0 · 4 MB
- Languages: English, Chinese
- Released: 2015-04-08
- Data updated: 2026-07-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-golden/id979029059/reviews.md

## What is Sudoku² Golden?

Infinite free Sudoku puzzles with levels from Easy to Evil!
Key features:
-Solve just one puzzle to unlock next level
-Input pad with no distractions
-Redo/Undo
-Taking/Erasing notes with different colors
-Taking notes manually or automatically
-Error check can be enabled or disabled
-Multiple highlight mode

## Key features

- Infinite Sudoku puzzles
- Adjustable difficulty levels
- Unlock levels by solving puzzles
- Distraction-free input pad
- Redo/Undo functionality
- Multi-color note-taking
- Manual/automatic note-taking


## Frequently asked questions about Sudoku² Golden

### What is Sudoku² Golden?

Sudoku² Golden is a paid mobile application offering an infinite number of Sudoku puzzles with adjustable difficulty levels from Easy to Evil. It features a clean interface and tools for note-taking and error checking.

### How much does Sudoku² Golden cost?

Sudoku² Golden is a paid app priced at $1.99. This one-time purchase grants access to all its features and an unlimited supply of puzzles.

### What devices is Sudoku² Golden compatible with?

Sudoku² Golden is available for iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system.

### What is the age rating for Sudoku² Golden?

Sudoku² Golden has an age rating of 4+. This indicates it is suitable for children and adults alike, with no mature content.

### How often is Sudoku² Golden updated?

The latest version of Sudoku² Golden, 2.30, was released on May 9, 2020. While updates have not been frequent recently, the app offers a stable and complete puzzle experience.

### Does Sudoku² Golden offer offline play?

The description does not explicitly state offline play, but Sudoku puzzles are typically playable without an internet connection. This allows for brain training on the go.

### What learning methodology does Sudoku² Golden use?

Sudoku² Golden employs a gamified learning approach, using Sudoku puzzles to enhance logical reasoning and problem-solving skills. Progress is tracked by unlocking new levels upon puzzle completion.

### Does Sudoku² Golden have ads?

Sudoku² Golden is a paid application and does not contain advertisements. Users can enjoy an uninterrupted puzzle-solving experience.

## Version history (last 1 release)

### 2.30 — 2020-05-09

1) Add a new option to input numbers below the board.
2) Adapt to iOS13.

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## More apps by 春 李

- [Gomoku∙5 - line five in a row](https://appshunter.io/ios/app/gomoku5-line-five-in-a-row/id525245230)
- [成语爱接龙](https://appshunter.io/ios/app/id836443085)
- [Gomoku Solver](https://appshunter.io/ios/app/gomoku-solver/id853427553)
- [Sudoku²](https://appshunter.io/ios/app/sudoku/id959450517)
- [LS Player - mp3 repeater](https://appshunter.io/ios/app/ls-player-mp3-repeater/id1174201566)

All apps by 春 李: https://appshunter.io/developer/525245233

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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 2026-07-07.*