# Guess the Code HD — Best Mastermind puzzle game

> Digital codebreaker puzzle game with configurable difficulty and colorblind mode. (iPhone/iPad app by Optime Software LLC.)

- Source: https://appshunter.io/ios/app/guess-the-code-hd/id397220426 (this page in markdown: same URL + `.md`)
- Developer: [Optime Software LLC](https://appshunter.io/developer/289278460)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free
- Rating: 4.30/5 from 112 App Store ratings · 246 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 50 MB
- Languages: American English
- Released: 2010-12-15
- Data updated: 2026-09-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/guess-the-code-hd/id397220426/reviews.md

## What is Guess the Code HD?

The computer mastermind has chosen a secret code.  Can you crack the code before you run out of guesses?  

Guess the Code Free HD is the best codebreaker game for the iPad.  Your iPad chooses a sequence of colors and you must try to guess the sequence within a specific number of guesses.  

Guess the Code Free HD includes a host of exciting features, including: 

* Great graphics and exciting sound effects 
* Configurable difficulty levels 
* "Use Letters" mode for colorblind players 
* Automatic save when you exit the app or receive a phone call 

If you are a fan of Mastermind, Bulls and Cows, or Vault Breaker, this is the game for you!    

Guess the Code Free HD is supported by unobtrusive banner advertisements.     

-------------------------------  

Please Note:  The result pegs do not correspond directly to the guess pegs.  The result pegs tell you the number of guess pegs that are in the right position or are the right color, but not which ones.  The code does not change over the course of  the game and it is definitely possible to figure out the code in the number of guesses allotted.

## Key features

- Secret code cracking
- Configurable difficulty levels
- Colorblind mode ('Use Letters')
- Automatic save functionality
- Great graphics and sound effects

## What do users think of Guess the Code HD?

Overall sentiment: positive

**Pros**

- 🚀 Easy to understand
- 👍 Good interface
- 👍 Excellent graphics
- 👍 Challenging and fun
- 👍 Reminds of classic Mastermind game
- 👍 Helps exercise the brain
- 👍 Multiple difficulty levels

**Cons**

- 🐛 Inconsistent clues/hints
- 🔨 Hard to select colors
- 🔨 Vertically fixed, would prefer rotation
- 🔨 Difficult to tell apart gray and white pegs

**Commonly reported bugs**

- Incorrect hints/feedback on color placement
- Compatibility issues on older devices

**Most requested features**

- Allow multiple pegs of the same color
- Add online/multiplayer mode
- Implement undo feature
- Introduce more color options
- Add scoring system and statistics tracking

## Recent user reviews (10 of 246)

All indexed reviews: https://appshunter.io/ios/app/guess-the-code-hd/id397220426/reviews.md

### 5/5 — Engrossing

*2023-06-27, version 1.75*

The game is so interesting even after 10 years and a virtual challenge every time you play.

### 5/5 — Very good

*2023-04-23, version 1.75*

It is the real iq tester

### 4/5 — Gess code

*2021-08-15, version 1.75*

It is hard and annoying to have to click on the circle to chose colour but other then that great

### 5/5 — Alexander

*2021-07-21, version 1.75*

Easy to understad. Good interface

### 4/5 — Not bad

*2020-01-30*

I'd like it to rotate.  It's vertically fixed and that's annoying.  Also, traditionally, the old mastermind/guess the color games allowed multiple pegs of one color.  It was more challenging that way.  Still, pretty fun and I like being able to leave blanks.  Nice.

### 5/5 — Guess the Code

*2020-01-13, version 1.75*

Great!

### 4/5 — GuessCode

*2019-11-28, version 1.75*

Excellent graphics! I like how you can select alphabets to be on the colours.

### 5/5 — Guess the code

*2019-02-09, version 1.75*

Vraiment très bien. Intéressant. Un jeu qui fait réfléchir!

### 5/5 — Digital twist on classic Mastermind

*2018-12-15*

Works just like the classic board game but with an AI opponent. That plus a few new features like settings for the number of pegs and whether or not repeats or blanks are allowed make this a perfect adaptation. I use it to teach logical reasoning.

### 5/5 — AWESOME

*2018-09-09, version 1.75*

I love this game I play it with my dad and keeps my brain. Working over summer holidays! :D

## Frequently asked questions about Guess the Code HD

### What is Guess the Code HD?

Guess the Code HD is a digital codebreaker puzzle game where the objective is to guess a secret sequence of colors chosen by the computer. You have a limited number of guesses to crack the code.

### What are the key features of this app?

The app offers great graphics and sound effects, configurable difficulty levels, and a 'Use Letters' mode for colorblind players. It also includes an automatic save feature for convenience.

### How is the game monetized?

This application is free to download and play. It is supported by unobtrusive banner advertisements, and may offer in-app purchases.

### Is this game compatible with my device?

The description specifies that this is a game for the iPad. Compatibility with specific iPad models or iOS versions would typically be found in the app store listing.

### What kind of puzzles does this app offer?

This app offers a logic puzzle experience similar to Mastermind, Bulls and Cows, or Vault Breaker. It requires deduction and strategic thinking to decipher the secret code.

## Version history (last 5 releases)

### 1.75 — 2017-10-07

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

• New More Games screen
• Minor bug fixes

### 1.70 — 2015-09-24

• Updated for iOS 9
• Minor bug fixes

### 1.65 — 2013-10-10

• Updated for iOS 7 
• Minor bug fixes

### 1.60 — 2013-07-24

* Added high-res graphics for iPad retina display
* Minor bug fixes

### 1.16 — 2012-03-07

* Updated instruction text on How to Play screen

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| --- | --- | --- | --- |
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## More apps by Optime Software LLC

- [Tic Tac Toe ∙](https://appshunter.io/ios/app/tic-tac-toe/id289278457)
- [Four in a Row.](https://appshunter.io/ios/app/four-in-a-row/id292882605)
- [Four in a Row Pro](https://appshunter.io/ios/app/four-in-a-row-pro/id294204179)
- [Tic Tac Toe Pro](https://appshunter.io/ios/app/tic-tac-toe-pro/id294293446)
- [Checkers ・](https://appshunter.io/ios/app/checkers/id294664915)
- [Checkers Premium](https://appshunter.io/ios/app/checkers-premium/id294841947)

All apps by Optime Software LLC: https://appshunter.io/developer/289278460

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-14.*