# SudokuPro: Killer & Classic — Sudoku Puzzles & Guided Hints

> Sudoku puzzles and training with classic and advanced variants, plus learning tools. (iPhone/iPad app by 利强 赵.)

- Source: https://appshunter.io/ios/app/sudokupro-killer-and-classic/id6768647407 (this page in markdown: same URL + `.md`)
- Developer: [利强 赵](https://appshunter.io/developer/1759720073)
- Category: Entertainment, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 23 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-07-01
- Data updated: 2026-11-05
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/sudokupro-killer-and-classic/id6768647407/reviews.md

## What is SudokuPro?

Play Classic and Killer Sudoku, explore more variants, and learn the logic one step at a time. SudokuPro combines daily practice with guided hints that explain the reasoning when you get stuck.

Free to play:
- Classic 4x4, 6x6, 9x9, and 16x16 Sudoku
- Killer Sudoku
- Daily check-ins, records, mistakes, favorites, and Game Center leaderboards

Learn while you play:
- The Teaching button explains one logical step at a time
- Candidate notes, highlighted cells, and related regions help you understand why a move works
- Specialized practice helps beginners build real solving habits

Scan and solve:
- Use the camera or import a photo of a printed 9x9 Sudoku
- Check the recognized digits, then continue with candidates and step-by-step teaching
- Image recognition runs on your device without uploading your photos

Pro features:
- Sudoku Odyssey: connected boards and hidden challenges, with the first puzzle free to try and further puzzles available with Pro
- German Whispers, Palindrome, Thermometer, Arrow, and more rule variants
- X Sudoku
- Overlapping Sudoku, including Triangle, Cross, Samurai, Hourglass, and Double Diamond layouts
- Irregular Sudoku from 5x5 to 9x9
- Advanced teaching practice and unlimited Pro tools after the included free uses

Tools and revives:
Tools include a limited number of free uses. After those uses, you can unlock Pro. Where rewarded ads are supported, non-Pro players can also choose to watch an ad for one tool use or to revive the current game. Ads require an internet connection and are subject to availability. Pro tools and revives do not require watching ads. Available options are shown in the app.

Enjoy clear boards, dark and light mode, multiple input layouts, and local records for review. Basic puzzle play works offline; purchases, cloud sync, and ads require an internet connection.

Privacy Policy: https://www.vgamehub.com/sudokupro/privacy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Classic Sudoku (4x4, 6x6, 9x9, 16x16)
- Advanced variants (Killer, X, Overlapping, Irregular)
- Step-by-step logical teaching
- Candidate notes and highlighting
- Daily check-ins and leaderboards
- Dark and light mode

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Sudoku Pro Yearly | $14.99 | per year |
| Sudoku Pro Monthly | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Sudoku Pro Lifetime | $29.99 | one-time |


## Is SudokuPro safe?

Not enough ratings yet to assess SudokuPro.

## Is SudokuPro legit?

SudokuPro: Killer & Classic appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SudokuPro is 63 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sudokupro-killer-and-classic/id6768647407/reviews.md

### 3/5 — 建议

*2026-07-18*

可以像合数里面的数独一样，用大写的写好以后就直接把笔记里面对应小的数字删掉吗？杀手数独这些数独可以加一个玩法说明吗？

**Developer response:** 数独Pro刚上线，很多功能还不完善，如果只
是玩9宫数独的话，可以直接使用合数，数独Pro后续会不断完善，数独的类型也会不断
增加

## Frequently asked questions about SudokuPro

### What types of Sudoku puzzles does Sudoku Pro offer?

Sudoku Pro offers classic 4x4, 6x6, 9x9, and 16x16 grids, along with advanced variants like Killer Sudoku, X Sudoku, Overlapping Sudoku (Triangle, Cross, Samurai, Hourglass, Double Diamond), and Irregular Sudoku from 5x5 to 9x9.

### Does Sudoku Pro have ads?

No, Sudoku Pro is built for focused play and does not contain advertisements. It offers a clear board experience.

### How does Sudoku Pro help users learn to play?

The app includes a 'Teaching' button that explains logical steps one at a time. It also provides candidate notes, highlighted cells, and related regions to help users understand solving strategies.

### What are the subscription options for Sudoku Pro?

Sudoku Pro offers a monthly subscription for $1.99 and a yearly subscription for $14.99, unlocking unlimited Pro features and tools.

### What devices is Sudoku Pro available on?

Sudoku Pro is available on iPhone and iPad devices.

### How often is Sudoku Pro updated?

The app was last updated on July 11, 2026, indicating regular maintenance and potential feature additions.

### Can I play Sudoku Pro offline?

The description does not explicitly mention offline play, but the focus on 'focused play' and local records suggests it may be playable without an internet connection.

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

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

## Version history (last 5 releases)

### 1.0.7 — 2026-11-03

This Update:
- Add rewarded-ad options for tools and revives, with clearer guidance on free uses and Pro benefits
- Fix game resumption after reviving, switching screens, and cloud sync, improving saved games and answer records
- Improve puzzle generation, teaching interactions, and offline Pro entitlement verification

### 1.0.6 — 2026-10-25

This Update:
- Improve layouts and navigation on iPhone Duo when folding, unfolding, and rotating
- Expand Classic 9x9 and Killer challenge libraries at their highest difficulty, with the Answer tool disabled
- Improve saved-game recovery, level continuity, and recovery from puzzle-loading failures

### 1.0.5 — 2026-09-14

This Update:
- Fixed other known issues

### 1.0.4 — 2026-07-24

This Update:
- Fixed other known issues

### 1.0.3 — 2026-07-11

This Update:
- Fixed other known issues

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| [K.O. Sudoku Pro](https://appshunter.io/ios/app/ko-sudoku-pro/id6479217148) | — | $19.99 | Entertainment |
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## More apps by 利强 赵

- [Heso:2048,Sudoku,Minesweeper](https://appshunter.io/ios/app/heso2048sudokuminesweeper/id6581490196)

All apps by 利强 赵: https://appshunter.io/developer/1759720073

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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 2026-11-05.*