# Sudoku Classic & Killer — Daily Logic Puzzles

> Brain-challenging Sudoku puzzles with multiple modes, difficulty levels, and helpful features. (iPhone/iPad app by Appgeneration Software.)

- Source: https://appshunter.io/ios/app/sudoku-classic-and-killer/id1110306997 (this page in markdown: same URL + `.md`)
- Developer: [Appgeneration Software](https://appshunter.io/developer/386316599)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.70/5 from 552 App Store ratings · 38 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 286 MB
- Languages: American English, Dutch, European Spanish, Italian, German (Germany), Polish, European Portuguese, Turkish, French (France), Swedish
- Released: 2016-05-11
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-classic-and-killer/id1110306997/reviews.md

## What is Sudoku Classic & Killer?

Challenge your brain with this amazing Sudoku free game. Play and have fun!

CHALLENGE YOUR BRAIN
Hundreds of classic sudoku puzzles to test your skills.
Beautiful and intuitive interface, many options and great gameplay.
Perfect for both beginners and advanced players, as well as for kids, for adults and for seniors.

If you want to challenge a puzzle that fits your skills or your mood at the moment, choose the difficulty level (beginner, easy, medium, hard, expert and master) in the classic mode. You can also complete the daily challenges with puzzles with random difficulty levels and build up your trophy wall every month or play the limited-time events to win medals and beautiful badges to get your trophy wall full and pretty.

Got stuck? Use the intelligent hints to help solve the puzzle and also learn Sudoku techniques from it.

KEY FEATURES
- Hundreds of puzzles, different game modes
- Classic mode - with 6 difficulty levels, from beginner to master
- Killer Sudoku - exciting alternative mode to test your skills
- Daily Challenge - new puzzle every day, collect trophies
- Special events - complete levels before you run out of time to win medals in our limited-time seasonal events
- Intelligent Hints - to help you solve the puzzles
- Pencil notes - update notes automatically whenever a number is positioned
- Magic notes - give you all the possible numbers for each cell
- Highlight duplicates to avoid repeating numbers in a row, column and block
- Themes - 3 different themes, including dark mode for better eye comfort
- Auto-save - pause and continue game without losing any progress
- Stats - to help you track your performance and compare with others
- High scores, achievements and trophies

And many other features and options:
- Undo and Erase buttons
- Sound effects
- Timer
- Error limit: challenge yourself by limiting the number of errors per game
- Automatic error checking: highlight the numbers that do not match the final solution
- Lock a number to place it in multiple cells without using the keypad
- Hide completed numbers
- Highlight identical numbers
- Highlight each cell's row, column and block

Can you solve this puzzle and be the king in this Sudoku kingdom? Are you a Sudoku master?
Play Sudoku daily and have fun!

## Key features

- Hundreds of classic and killer Sudoku puzzles
- 6 difficulty levels from beginner to master
- Daily challenges and limited-time events
- Intelligent hints and pencil notes
- Customizable themes including dark mode
- Auto-save and progress tracking

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Hint Pack | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


## What do users think of Sudoku Classic & Killer?

Overall sentiment: mixed

**Pros**

- 👍 Makes you think
- 👍 Very readable game
- 👍 Good pastime
- 👍 Relaxing
- 👍 Fun
- 👍 Increases memory and brain power
- 👍 Great way to pass time
- 👍 Fantastic game
- 👍 Good pastime
- 👍 Excellent game
- 👍 Very easy to play
- 👍 Simple as we like
- 👍 Free app
- 👍 Easy to see numbers
- 👍 Clean design
- 👍 Good memo function

**Cons**

- 🐛 Board doesn't turn horizontal
- 🐛 Too many ads
- 🐛 App doesn't load often
- 🐛 Ads not removed after payment
- 🐛 Paid for ad-free, still get ads
- 🐛 Dark blue color hard to see numbers
- 🐛 Difficult to read numbers in blocks
- 🐛 Spinning wheels distraction
- 🐛 Ads appear after every game

**Commonly reported bugs**

- App doesn't load a lot of the time
- Ads not removed after payment
- Paid for ad-free, still get ads
- Dark blue is too dark to see numbers
- Difficult to read numbers once blocks are completed
- App doesn't work since 2019
- Spinning wheels distraction

**Most requested features**

- Add feature for incorrect numbers not being accepted
- Show percentage of players faster than you
- Remove purchase history

## Recent user reviews (10 of 38)

All indexed reviews: https://appshunter.io/ios/app/sudoku-classic-and-killer/id1110306997/reviews.md

### 1/5 — Frustrating

*2026-05-18*

App keeps freezing or just closing

**Developer response:** Hi! We are truly sorry for the frustration. A Sudoku game should be relaxing, not freezing up on you! Please make sure your app is updated to the latest version, as it includes performance improvements. If the crashes or freezes persist, could you email us at info@appgeneration.com with more details? We want to investigate and fix this for you.

### 5/5 — Pensar

*2026-03-18*

Por eso me gusta. Porque me hace pensar

### 5/5 — A good challenge

*2026-01-13*

Challenging & rewarding !

### 4/5 — grandes détente

*2025-12-06*

Sympathique

### 3/5 — 楽しめました

*2025-09-07*

次も頑張ります。梁川ちゃん

**Developer response:** こんにちは、ご意見ありがとうございます。ゲームをお楽しみいただけて嬉しく思います。改善点などございましたら、info@appgeneration.com までお気軽にお問い合わせください。これからもゲームをプレイして楽しんでいただければ幸いです。近いうちに評価を上げてまいります。ありがとうございます。よろしくお願いいたします。

### 1/5 — Primitive stupid

*2025-06-08, version 6.1.7*

The board doesn’t turn horizontal only remains vertical

### 5/5 — Just love it

*2025-06-08, version 6.1.7*

❤️❤️❤️

### 5/5 — Jeu facile

*2025-01-06*

Le jeu est très bien, il est très lisible , et je vais continuer pour m’améliorer.

### 1/5 — Too many ads

*2024-12-19, version 5.7.6*

Cut down on the number of ads

### 5/5 — ALI

*2024-10-05*

Thanks

## Frequently asked questions about Sudoku Classic & Killer

### What is Sudoku Daily?

Sudoku Daily is a free game that offers hundreds of classic and killer Sudoku puzzles to challenge your brain. It features multiple difficulty levels, daily challenges, and special events to keep gameplay engaging.

### What are the key features of Sudoku Daily?

Key features include hundreds of puzzles across classic and killer modes, six difficulty levels, daily challenges with trophy collection, special limited-time events, intelligent hints, pencil notes, and customizable themes like dark mode.

### Is Sudoku Daily free to play?

Yes, the app is free to play and offers a wide range of puzzles and features. It does include in-app purchases and advertisements.

### What devices is Sudoku Daily compatible with?

While specific compatibility details are not provided, Sudoku Daily is a mobile application designed for smartphones and tablets. Users can typically download and play it on most modern Android and iOS devices.

### How can Sudoku Daily help improve my skills?

The app provides various difficulty levels, from beginner to master, allowing you to gradually improve. Intelligent hints can help you solve puzzles and learn new Sudoku techniques, while stats help you track your performance over time.

## Version history (last 5 releases)

### 7.6.1 — 2026-08-22

- Bug fixes
We are always making improvements on the app from time to time to provide a better experience to our users.

### 7.5.9 — 2026-07-21

- Bug fixes
We are always making improvements on the app from time to time to provide a better experience to our users.

### 7.5.5 — 2026-05-19

- Bug fixes
We are always making improvements on the app from time to time to provide a better experience to our users.

### 7.5.4 — 2026-05-13

- Bug fixes
We are always making improvements on the app from time to time to provide a better experience to our users.

### 7.2.0 — 2026-03-14

- Bug fixes
We are always making improvements on the app from time to time to provide a better experience to our users.

## Apps similar to Sudoku Classic & Killer

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| --- | --- | --- | --- |
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| [Sudoku: Logic Puzzle Workshop](https://appshunter.io/ios/app/sudoku-logic-puzzle-workshop/id1031502396) | 4.6 (220) | Free | Games |
| [Sudoku Color - Classic Puzzle!](https://appshunter.io/ios/app/sudoku-color-classic-puzzle/id1503221765) | 4.8 (34,525) | Free | Games |
| [Sudoku· Classic Puzzle Games](https://appshunter.io/ios/app/sudoku-classic-puzzle-games/id1409781798) | 4.7 (63,544) | Free | Games |

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All apps by Appgeneration Software: https://appshunter.io/developer/386316599

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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 2026-08-25.*