Logic: code breaking

4.9
5.81K reviews
100K+
Downloads
Content rating
Everyone
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About this game

Logic: code breaking is an educational puzzle based on a classic two-player code breaking puzzle board game popularized in the 70s.

It is also known as Bulls and Cows, and Numerello. Many variants exist such as Royale, Grand, Word, Mini, Super, Ultimate, Deluxe, Advanced and Number with varying degree of complexity. This app, with its flexible settings, will let you adapt the difficulty to many of these variants.

Features
One player mode
Two player modes
Adjustable difficulty
Adjustable appearance
Points and ranking system
Configurable code labels
Game statistics
Accessibility (TalkBack) for visually impaired

Description
A code is automatically generated in one player mode and you have to use a logical approach to break the code with the least number of guesses to become the master code breaker. For each guess you submit a response will tell you how many colors are both correct in color and position, or in color but not position.

You can adjust the difficulty of the game in Settings by changing the number of rows, columns and colors to find a suitable level for novices and experts alike.

You can challenge a friend or family member in one of the Logic: code breaking multiplayer game modes by either playing on the same device or Play by mail for remote play.

You can earn points and gain rank as you progress and win games in single player mode.

You can fully customize the colors of all the pegs to assist users suffering from color blindness or simply because you would like a different look and feel.

You can configure code labels of numbers and letters, shown with the colors to assist users suffering from color blindness and also to teach the younger audience about numbers and letters while playing this educational puzzle game.

You can choose between light and dark mode and various color themes to get the look and feel you prefer.

You can get hints when you feel a game is too challenging and still break the code before you run out of guesses.

You can see statistics for each game you finish so you can compete against yourself, or compare with friends, and improve your Logic: code breaking skills over time.

A Logic: code breaking game will on average take two to five minutes to complete depending of the difficulty setting.
Updated on
Aug 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Committed to follow the Play Families Policy

Ratings and reviews

4.9
5.52K reviews
Dana Alexander
July 3, 2025
I love this game! The interface is very user friendly and it's great that it's free with no ads. The only changes I would request are to have a way to eliminate a number/color in a specific position by making it less visible. I use the dotted outline for this now, but it would be great if I could black it out or even put an X over it without blacking out all of the dots of that color. I would also love an option for unlimited rows, even there is no score given over a certain number of rows.
4 people found this review helpful
Did you find this helpful?
Logicom Apps
July 3, 2025
Thank you so much for the great suggestions and for taking the time to write a review, Dana. We'll into them. Much appreciated.
John Marttila
February 14, 2023
This is very thoughtfully programmed. I particularly appreciate the flexibility with customizing the appearance. Too many games in this genera don't take into consideration that about 8% of us have some color deficiency which makes some colors miserable to differentiate. This one, on the other hand, was relatively easy to see right away, and when you're using numbers and colors, then there's no confusion at all. I would love to see a "mean" turn time along with the average time stats.
26 people found this review helpful
Did you find this helpful?
Logicom Apps
February 14, 2023
Thank you so much for taking the time to write a review John, and for your suggestion as well. We'll look into adding the mean turn time to the stats. Thanks again.
JD Brannock
June 22, 2021
What a fantastic app. Clean, well-thought-out design that matches the original gameplay with lots of options for number of colors, columns, etc to change the difficulty. No coins, collectibles, ads, microtransactions, or any of the other annoyances that plague modern phone games. And dark mode! If it were possible to make a more perfect version of the classic Mastermind game, I don't know how. And it's free?!?
52 people found this review helpful
Did you find this helpful?
Logicom Apps
June 22, 2021
Thank you so much for the review and kind words JD. We really appreciate that you've taking the time to write about your experience with the app. It is very motivating, and great to hear that you enjoy the game. You are always welcome to reach out if there's anything you would like us to add to the app.

What’s new

Minor improvements and maintenance. Also increased maximum game time from one hour to 24 hours.