Classic Sudoku!

Classic Sudoku!

by Cracking the Cryptic

249 ratings
145 reviews
$4.99

Details

  • Released
  • Updated
  • November 25, 2019
  • November 27, 2020

Features

Classic Sudoku! screenshot #1 for iPhone
Classic Sudoku! screenshot #2 for iPhone
Classic Sudoku! screenshot #3 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app offers a collection of 100 expertly crafted Sudoku puzzles, curated by popular YouTube hosts. Puzzles range in difficulty and are designed to teach advanced solving techniques. Earn stars by solving puzzles to unlock more challenges.

100 beautiful puzzles
Wide range of difficulty
Advanced technique showcase
Star-based progression
Hints from expert solvers
Multiple themes
Show original description

What users say

See all reviews

What's New in Classic Sudoku!

2.1

November 27, 2020

10 new puzzles, all 100 puzzles are out now!

Charts

Top Paid

📉 89-8

Board games

This game dropped -8 positions in Board games chart.

Last updated on July 28, 2026.

Top Paid

📉 186-26

Puzzle games

This game dropped -26 positions in Puzzle games chart.

Last updated on July 28, 2026.

User reviews

This is the one

Brilliant.

Needs auto fill candidates

For people with carpal tunnell

good stuff

love it. great puzzle quality. a few glitches. for example, i finish some puzzle but then the timer keeps counting for some reason, and then there’s a white flag. what’s that mean?

App Too Confusing

Don’t waste your money. This app is way too confusing to use. Sudoku is a simple game. This app makes playing it almost impossible.

Not the very best

I have the other app by Nick Carney: “Cracking the Cryptic curated sudoku puzzles” that I absolutely love. Was somewhat disappointed by this one as it’s not user friendly at all or perhaps I’m somehow unable to figure out how to use it. There are only three colours for shading the cells. I can’t select a number to see highlights of places I’ve noted it. Selection and deselection of cells is rather odd. I really dislike seeing the numbers in a line at the bottom. I wished I could somehow migrate these classic sudokus to the other app 😢

I can at most take off one star because to be fair it’s still way better than other apps apart from the one I mentioned.
Show more

Developer apps

User experience

🐞

Reported Bugs

3 issues

Puzzles with multiple valid solutions

Bug

App freezing or crashing

Bug

Pencil marks not working as expected

Bug

Requested Features

6 requests

Dark mode option

Feature

Ability to input custom puzzles

Feature

More puzzles added regularly

Feature

Improved sync between devices

Feature

Graphical representation of hints instead of text

Feature

Ability to pause/resume puzzles

Feature

FAQ

What is Classic Sudoku!?

Classic Sudoku! is a mobile application featuring a collection of 100 expertly crafted Sudoku puzzles. These puzzles are curated by the hosts of the popular YouTube channel, Cracking the Cryptic, and are designed to offer a wide range of difficulty and showcase advanced solving techniques.

How do I unlock more puzzles?

You earn stars by successfully solving puzzles. The more puzzles you solve, the more stars you accumulate, which in turn unlocks additional puzzles within the game. This system encourages dedication and rewards clever players.

Are there hints available?

Yes, the app provides hints written by the expert solvers, Mark and Simon. These hints are designed to guide you through the puzzles, especially the more advanced ones, and help you understand the patterns involved in solving them efficiently.

Is this app free to play?

Yes, the application is free to download and play. It does not feature in-app purchases or advertisements, offering a pure puzzle-solving experience.

What makes these Sudoku puzzles special?

These puzzles are special because they have been rigorously play-tested by humans, ensuring a thoughtful and engaging solving journey. They are designed to showcase diabolical techniques in an intuitive way, aiming to help solvers understand complex patterns.