# Sudoku Classic & Killer

> Daily Logic Puzzles

Canonical page: [https://chrome-stats.com/d/id1110306997](https://chrome-stats.com/d/id1110306997)

## Overview

- **ID:** `id1110306997`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Appgeneration Software
- **Category:** Puzzle
- **Rating:** 4.70 / 5 (556 ratings)
- **Version:** 7.6.1
- **Last updated:** 2026-08-22
- **First published:** 2016-05-11
- **Size:** 286 MB
- **Data as of:** 2026-09-17
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/sudoku-classic-killer/id1110306997)
- **Website:** [https://www.sudokuonline.io](https://www.sudokuonline.io/)
- **Privacy policy:** [https://www.appgeneration.com/privacy.html](https://www.appgeneration.com/privacy.html)

## Description

Challenge your brain with hundreds of Sudoku puzzles across multiple modes, featuring a beautiful, intuitive interface, daily challenges, and smart hints to guide you.

Classic mode offers six difficulty levels from very easy to grand master, plus Killer Sudoku, pencil notes, duplicate highlighting, themes (including dark mode), auto-save, and comprehensive stats, high scores, and trophies to track your progress.

## Rankings

- #69,550 — Overall

## Review summary

Users generally enjoy Sudoku Puzzles as an engaging, brain-stimulating game with many options and easy gameplay, plus it’s free. However, multiple reviews point to persistent, intrusive ads that aren’t removed after purchase. Readability and visibility problems (color contrast and number legibility) are also noted, affecting the user experience. A few mention occasional loading issues, but the dominant concerns are ad-related frustration and UI readability, suggesting improvements in ad handling and visual clarity.

### Pros

- Engaging and a great way to pass time
- Brain-stimulating; may help memory
- Many options / features
- Easy to play / simple to use
- Free to play

### Cons

- Ads are intrusive and remain even after paying for removal
- Color contrast/readability issues make numbers harder to read (dark blue numbers, color feedback) and readability worsens as blocks are completed

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1110306997)