# Sudoku: Classic Brain Puzzle

> Keep your mind sharp!

Canonical page: [https://chrome-stats.com/d/id1500326655](https://chrome-stats.com/d/id1500326655)

## Overview

- **ID:** `id1500326655`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** UNICO STUDIO
- **Category:** Puzzle
- **Rating:** 4.70 / 5 (1,402 ratings)
- **Version:** 1.2.46
- **Last updated:** 2025-03-21
- **First published:** 2020-07-03
- **Size:** 183 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/sudoku-classic-brain-puzzle/id1500326655)
- **Website:** [https://unicostudio.co/](https://unicostudio.co/)
- **Privacy policy:** [https://unicostudio.co/privacy.html](https://unicostudio.co/privacy.html)

## Description

Sudoku: Classic Brain Puzzle is an offline, free Sudoku game designed for beginners and experts alike. It offers five difficulty levels—Novice to Expert—with 5000+ puzzles, note-taking that updates automatically, undo/eraser, hints, and autosave to sharpen your logic and memory.

Track your progress across levels, switch between color themes (including dark mode), and play on phones or tablets. With auto-check, duplicates highlighting, related row/column/box highlighting, and auto-complete options, this brain-training puzzle keeps you engaged whether relaxing or challenging yourself.

## Rankings

- #47,225 — Overall

## Review summary

Users generally enjoy the core Sudoku gameplay and find it appealing to Sudoku fans. However, the dominant, recurring complaints center on an overwhelming ad load—ads during play, loud or disruptive audio, and even inappropriate ad content. Many report crashes or loss of progress tied to ads, and there’s frustration over the lack of a reliable, affordable ad-free option. A minority note UI or performance quirks, but the ad experience largely drives dissatisfaction and app abandonment.

### Pros

- Engaging core Sudoku puzzle mechanics that many players enjoy
- Strong appeal to Sudoku fans; users download and express love for the game
- Generally reliable for some players, with no issues reported for a period of play

### Cons

- Ads are excessive and disruptive, frequently appearing during gameplay and interrupting concentration
- Inappropriate or unsafe ad content (pornographic/18+ material) appears in the ad network
- Ads cause audio interruptions (must keep phone unmuted; ads can play at high volume) and can mute/pause game audio
- No clear, affordable option to remove ads; in-app no-ads option is unavailable or overpriced/promised as 'coming soon'
- Ad-related bugs and instability (ads loading/interruptions causing crashes, progress loss, or being unable to exit ads)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1500326655)