# Sudoku: Classic & Killer — The Ultimate Logic Challenge

> The Ultimate Logic Challenge (iPhone/iPad app by Huy Huynh.)

- Source: https://appshunter.io/ios/app/sudoku-classic-and-killer/id6746364502 (this page in markdown: same URL + `.md`)
- Developer: [Huy Huynh](https://appshunter.io/developer/1815003126)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.6 · 69 MB
- Languages: American English
- Released: 2025-05-27
- Data updated: 2026-09-02
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-classic-and-killer/id6746364502/reviews.md

## What is Sudoku?

Sudoku: Classic & Killer is a complete Sudoku experience designed for both beginners and hardcore puzzle lovers.

Enjoy classic Sudoku with multiple board sizes, from Kids Mode and 9×9 Classic to advanced challenges like 12×12, 16×16, and Super Sudoku 21×21 (Samurai). Every puzzle is based on pure logic — no guessing, no maths, just clear rules and smart thinking.

Looking for something different? Try Suko Mode, a unique Sudoku-style puzzle that adds fresh constraints and deeper logical challenges.

The game supports Light and Dark Mode, plays 100% offline, and offers infinite puzzles so you never run out of challenges. Whether you play for five minutes or an hour, your progress is always saved.

A built-in gameplay recording feature lets you review your solving process, learn from mistakes, and improve your strategy over time — perfect for serious Sudoku fans.

With a clean interface, smooth performance, and carefully designed boards for every difficulty level, Sudoku: Classic & Killer is the ultimate logic puzzle collection for all ages.

Train your brain, relax your mind, and enjoy Sudoku your way — anytime, anywhere.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |



## Version history (last 5 releases)

### 1.1.5 — 2026-08-31

Optimized app performance and memory usage

### 1.1.4 — 2026-08-11

Bug Fixes & Improvements

### 1.1.3 — 2026-06-18

improved performance.

### 1.1.2 — 2026-05-26

bug fixes and performance improvements

### 1.1.1 — 2026-04-03

added Challenges Mode with 100 exciting levels!

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| [Pencilsticks ~ Matches Puzzle](https://appshunter.io/ios/app/pencilsticks-matches-puzzle/id6741486179) | 5.0 (1) | Free | Games |
| [X-Sudoku](https://appshunter.io/ios/app/x-sudoku/id6755918569) | — | Free | Games |
| [Puzzletopia](https://appshunter.io/ios/app/puzzletopia/id6746757104) | — | Free | Games |
| [Car in Place](https://appshunter.io/ios/app/car-in-place/id6746412812) | — | Free | Games |
| [Sudoku365+](https://appshunter.io/ios/app/sudoku365-plus/id6746101859) | — | Free | Games |
| [Sudoku Oasis](https://appshunter.io/ios/app/sudoku-oasis/id6748649147) | — | Free | Games |

## More apps by Huy Huynh

- [BoxAlign – Block Move](https://appshunter.io/ios/app/boxalign-block-move/id6746065994)
- [Simple Calendar (Plan Todo)](https://appshunter.io/ios/app/simple-calendar-plan-todo/id6746109019)
- [Brick Line](https://appshunter.io/ios/app/brick-line/id6746110753)
- [TicTacToe Nova: XOXO Puzzle](https://appshunter.io/ios/app/tictactoe-nova-xoxo-puzzle/id6746399822)
- [Snapzzle: Photo Tile Puzzle](https://appshunter.io/ios/app/snapzzle-photo-tile-puzzle/id6746403856)

All apps by Huy Huynh: https://appshunter.io/developer/1815003126

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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 2026-09-02.*