# Ultimate Mastermind HD > Digital classic color code-breaking board game with advanced features and statistics. (iPhone/iPad app by Logical Deduction Games.) - Source: https://appshunter.io/ios/app/ultimate-mastermind-hd/id371052892 (this page in markdown: same URL + `.md`) - Developer: [Logical Deduction Games](https://appshunter.io/developer/333266248) - Category: Games, Board, Puzzle - Price: $0.99 - Rating: 3.20/5 from 24 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 66 MB - Languages: American English - Released: 2010-05-13 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/ultimate-mastermind-hd/id371052892/reviews.md ## What is Ultimate Mastermind HD? Yes, there are lots of free versions of Mastermind in the App Store - but here is why we believe that Ultimate Mastermind HD is worth paying for: Ultimate Mastermind HD is the universal version of the classic color code-breaking board game that runs on the iPad, iPhone, and iPod Touch. Ultimate Mastermind HD is completely unlocked and provides Code Sizes of 3 - 8 on the iPhone/iPod Touch and Code Sizes of 3 - 10 on the iPad. Ultimate Mastermind is designed to provide maximum playability and to let your mind focus on solving the puzzle without annoying palettes that jump in and out of the screen. Ultimate Mastermind provides the following design elements: - an innovative floating color palette that is always available right where you need it just above your current guess - a simple and concise layout so previous guesses are always visible without scrolling - aesthetically pleasing colors - no distracting sounds Ultimate Mastermind supports simple and intuitive gestures such as: - one tap on the palette to place a peg - drag and drop from any color peg anywhere to add to your guess - drag and drop to swap two guess pegs - drag and poof to remove a guess peg Ultimate Mastermind also supports very simple but powerful features that let you easily do more complex things such as: - one tap to move all of a previous guess to your current guess when you only want to make a small change. - one tap to lock a peg into position when you know that peg is correct. - one tap to clear your current guess. And Ultimate Mastermind has increasing levels of difficulty to keep you coming back to play again and again: - you can increase the size of the code from 3 to 8 pegs (3 to 10 on the iPad) as you become more proficient. - the number of colors to choose from is increased from 5 to 10 (5 to 12 on the iPad) as the size of the code increases. - 10,000,000 possible code combinations on the iPhone/iPod Touch (10^8). - 62,000,000,000 possible code combinations on the iPad (12^10). An exclusive feature of Ultimate Mastermind is iPhone Replay. You can ask the iPhone to show you the steps it would take to crack the Secret Code you just attempted. This is fascinating to watch and allows you to compare your abilities to a smart computer algorithm. It also allows you to learn new and improved code cracking techniques from the iPhone. And finally to keep things interesting Ultimate Mastermind keeps the following statistics for each different code size: - rating - to compare your skill to others - number of games won and win percentage - number of games played - fewest number of guesses to solve - average number of guesses per game So if you just have a few minutes to kill or want to enjoy an extended session of brain challenging fun then Ultimate Mastermind is the game for you. ## Key features - Universal app for iPhone, iPad, and iPod Touch - Adjustable code sizes and color options - Innovative floating color palette - Intuitive gesture controls - iPhone Replay feature for learning strategies - Detailed game statistics tracking ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/ultimate-mastermind-hd/id371052892/reviews.md ### 4/5 — Doesn’t fill screen *2024-07-31* The game plays well enough but there is so much empty space at the top and bottom, between the two around a third of the screen (iPhone 15 pro max) is just black space. Not a show stopper but seems a waste to not use that space and make things feel less cramped ### 5/5 — Michael Swan *2023-04-29, version 2.0* Didn't think it was possible to improve on Version 2.0 ### 2/5 — Nice but buggy *2017-01-05* Really like the interface and game play. Like getting a rating. However, app will not load on my iPad. Also, on my phone when there are pop up messages from the game the message is blank and will not clear unless you close the game. Finally, the app gets alerted by the iPhone as being in need of update by the publisher. **Developer response:** I have just released version 3.0 of Ultimate Mastermind HD which is updated to work on the latest versions of iOS. Please check it out and let me know if you have any issues. Apologies for the very long hiatus in getting the app updated. ### 2/5 — Loved it *2016-02-07* It's broken. Since I bought my iphone6 plus, it hangs and crashes on certain attempts on or below 4 (classic game); possibly on wins. The interface is so good, I still play it all the time. Note: My email to the address that appears on the developer page, came back as "no such recipient." We may be orphans. **Developer response:** You are no longer an orphan! I have just released version 3.0 of Ultimate Mastermind HD. Please check it out and let me know if you have any issues. Apologies for the very long hiatus in getting the app updated. ### 3/5 — Bueno, pero... *2015-12-27* ¡No funciona en 6s! **Developer response:** I have just released version 3.0 of Ultimate Mastermind HD which is updated to work on the latest versions of iOS.  Please check it out and let me know if you have any issues. Apologies for the very long hiatus in getting the app updated. ### 2/5 — Mastermind *2015-08-20* Not bad but it keeps freezing especially when you get the right combination early. ### 1/5 — Bugs *2015-02-23, version 2.0* Game crashes after solving it. ### 3/5 — Ok but needs option for blanks *2014-12-08, version 2.0* Plays ok but it would be better if you could leave a number of blanks in the guess. ### 4/5 — Great game! *2014-10-18* Game is great. Lots of great hours of play. Please fix the crash every time I finish a game and click to see the computers solution. It always crashes on the row of the solution. **Developer response:** I have just released version 3.0 of Ultimate Mastermind HD which is updated to work on the latest devices and versions of iOS. Please check it out and let me know if you have any issues. Apologies for the very long hiatus in getting the app updated. ### 4/5 — Great game-a few little bugs. *2014-02-13* This is probably my favorite game. On this latest version, most of the time, when I select the button for the game to solve the puzzle, it "closes" the game. I do this after I have solved a puzzle. The game is still open but when I go back in it opens in an earlier game than the one I had solved. This happens on level 6, I haven't tried it on other levels. Also when I selected the link to email you I got an error message. I play on an iPhone 4S, iOS 7.0.4. Thanks!! **Developer response:** I have just released version 3.0 of Ultimate Mastermind HD which is updated to work on the latest devices and versions of iOS. Please check it out and let me know if you have any issues. Apologies for the very long hiatus in getting the app updated. ## Frequently asked questions about Ultimate Mastermind HD ### What devices does Ultimate Mastermind HD support? Ultimate Mastermind HD is a universal app and supports iPhone, iPad, and iPod Touch devices. It offers different code sizes depending on the device, with up to 8 pegs on iPhone/iPod Touch and up to 10 pegs on iPad. ### How much does Ultimate Mastermind HD cost? Ultimate Mastermind HD is a paid application, priced at $0.99. There are no in-app purchases or advertisements within the game. ### Does Ultimate Mastermind HD have ads? No, Ultimate Mastermind HD is completely ad-free. The description explicitly states that it is worth paying for and does not mention any advertisements. ### What are the difficulty levels in Ultimate Mastermind HD? The difficulty increases with larger code sizes and more colors. On iPhone/iPod Touch, code sizes range from 3 to 8 pegs with 5 to 10 colors. On iPad, code sizes range from 3 to 10 pegs with 5 to 12 colors, offering millions of possible combinations. ### Can I learn new strategies with Ultimate Mastermind HD? Yes, an exclusive feature called iPhone Replay allows the app to show you the steps it would take to crack the code you attempted. This helps you compare your skills and learn new code-cracking techniques. ### What statistics does Ultimate Mastermind HD track? The game keeps track of your rating, number of games won, win percentage, total games played, fewest guesses to solve a code, and average number of guesses per game for each code size. ### How does Ultimate Mastermind HD compare to other Mastermind apps? Ultimate Mastermind HD emphasizes maximum playability with an innovative floating color palette, a concise layout, and no distracting sounds. It also offers advanced features like one-tap peg locking and moving, and the unique iPhone Replay function. ### What is the age rating for Ultimate Mastermind HD? Ultimate Mastermind HD has an age rating of 4+. This indicates it is suitable for children aged 4 and above. ## Version history (last 2 releases) ### 3.0 — 2023-02-20 A photo-realistic gameboard and colored pieces for the iPad version. Looks just like the real game set you remember playing with. ### 2.0 — 2010-05-13 No release notes. ## Apps similar to Ultimate Mastermind HD | App | Rating | Price | Category | | --- | --- | --- | --- | | [Chinese Dark Chess King](https://appshunter.io/ios/app/chinese-dark-chess-king/id1108044086) | 4.1 (7) | Free | Games | | [Color Code Breaker](https://appshunter.io/ios/app/color-code-breaker/id319256200) | 4.7 (2,205) | Free | Games | | [The ScoreKeeper](https://appshunter.io/ios/app/the-scorekeeper/id6449228295) | 5.0 (2) | Free | Games | | [Codebreaker Master - Expert](https://appshunter.io/ios/app/codebreaker-master-expert/id1491779855) | 4.3 (6) | Free | Games | | [Tik Tap jump: Tricky Challenge](https://appshunter.io/ios/app/tik-tap-jump-tricky-challenge/id6475167007) | 4.3 (23) | Free | Games | | [Senior Word Game](https://appshunter.io/ios/app/senior-word-game/id6450273326) | 4.7 (3,524) | Free | Games | ## More apps by Logical Deduction Games - [ACROSS Lexington](https://appshunter.io/ios/app/across-lexington/id640435894) - [DNA2Tree](https://appshunter.io/ios/app/dna2tree/id1458545344) All apps by Logical Deduction Games: https://appshunter.io/developer/333266248 --- *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 2026-06-10.*