Free
In-App Purchases

Details

  • Released
  • Updated
  • October 17, 2008
  • April 18, 2016

Features

Sudoku 101 (Free) screenshot #1 for iPhone
Sudoku 101 (Free) screenshot #2 for iPhone
Sudoku 101 (Free) screenshot #3 for iPhone
Sudoku 101 (Free) screenshot #4 for iPhone
iphone
ipad
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About

This app serves as an introductory course to Sudoku, acting as a game, generator, solver, and tutor. It offers a clean interface, unlimited puzzles for beginners, and a multi-step teaching system to explain logic and patterns through human reasoning.

Beginner-focused Sudoku puzzles
Unlimited puzzle generation
Multi-step logic teaching system
Human logic-based techniques
Automatic game saving
Optional pencil marks and error display
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What's New in Sudoku 101 (Free)

3.0.8

April 18, 2016

This app has been updated by Apple to display the Apple Watch app icon. Minor color changes

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5

In-App Purchases

$1.99

Level 4: Challenging

Hidden Triple, Hidden Quad, Naked Triple, Naked Quad, X-Wing

User reviews

Doesn’t open

Immediately crashes on iPhone 16 Pro.

The Best

I can't believe I haven't reviewed this app before now. I have had this app for it's entire lifetime in the app store. I've tried over 30 different apps trying to find the best sudoku for me and THIS IS IT! It's simple and clean interface, ease of use, multiple levels of difficulty, and way to enter your own puzzles. It even has a tutorial to show you tips and strategies for solving the more difficult puzzles. I love everything about app and I'm so glad it's still available for download.

There is one con: when starting a new game, some answers from the previous puzzle will remain and need to be manually removed.
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Simple & Uncluttered

I tried a few other sudoku apps and they gave up to much game space to decorative theme elements. The free levels are a match for me. You can pay a little to learn to get better.

The best feature is being able to input your own game. If you see one in a magazine you can put it in the app. Very cool.
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A great introduction to Sudoku

Excellent tutorials, a particularly crisp, clean and uncluttered display.
Well worth upgrading to Sudoku 401, but if you do, don’t discard 101. I usually leave the newspaper offerings 1 cell short of completion so I can check my solution against their’s and having both 101 & 401 gives me a spare app.
My only grumble is that the entry box jumps all over the screen on the iPad instead of staying in the empty space to one side. It tends to slow the game down.
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Best one yet!

This is still the best sudoku app I have found in the app store (and I have downloaded more that 15 of them). I like the simplicity of the design, the UI for entering numbers, and the hint/tutor features. Auto pencil marks are also wonderful!

Developer apps

FAQ

What does Sudoku 101 do?

Sudoku 101 is an introductory Sudoku application that functions as a game, puzzle generator, solver, and a step-by-step tutor. It aims to teach beginners the logic and patterns of Sudoku using human reasoning rather than brute force.

How does the teaching system work?

When you are stuck, the 'Teach me' feature highlights cells of interest. Tapping again reveals the technique to look for, with an option to learn its meaning. Further taps explain the logic behind the technique and update the board for the next step.

What are the learning levels available?

The app offers three learning levels: 'Learning Basics' for absolute beginners using Full House techniques, 'Easy' which includes Full House, Naked Single, Hidden Single, and occasional pairs, and 'Moderate' introducing Naked Pair, Hidden Pair, and Locked Candidates.

Is this app free to use?

Yes, the app is free to download and use, offering a free Sudoku game and introductory teaching. It may include in-app purchases for additional content or features.

What kind of Sudoku puzzles can I play?

The app generates unlimited Sudoku puzzles specifically at a difficulty level appropriate for beginners. You can also manually enter puzzles from other sources, and choose between symmetrical or non-symmetrical board options.