# Sudoku IQ - Train your Brain — Daily sodoku number puzzle fun > Logic-based number-placement puzzle game for brain training. (iPhone/iPad app by HashCube, Inc..) - Source: https://appshunter.io/ios/app/sudoku-iq-train-your-brain/id1196710560 (this page in markdown: same URL + `.md`) - Developer: [HashCube, Inc.](https://appshunter.io/developer/1021924331) - Category: Games, Education, Board, Puzzle - Price: Free - Rating: 4.60/5 from 39 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 46 MB - Languages: Danish, Ukrainian, Armenian, Russian, Catalan, Hungarian, Norwegian Bokmål, Indonesian, Turkish, Hebrew and 23 more - Released: 2017-02-13 - Data updated: 2026-08-14 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/sudoku-iq-train-your-brain/id1196710560/reviews.md ## What is Sudoku IQ? Sudoku (originally called Andoku) is a logic-based, combinatorial number-placement puzzle. The Sudoku Free by Playzio is the best sudoku puzzle game ever. This #1 sudoku game free on ios will help you to learn and improve your sudoku solver skills helping you become a Sudoku Master. How to Play Sudoku: The aim of this brain teaser Sudoku free game is to place 1 to 9 into each grid cell so that each number can only appear once in each row, each column and each mini-grid. You will never go back to paper puzzle again. This Sudoku Free game Contains all types of difficulty Levels from flash, easy, medium, hard and expert modes, so this Game is designed for kids and adults too. Feature List Offline Game, No wifi required. Customizable Sudoku board with 5 multiple choices of gorgeous themes Statistics to keep track of your game performance Global leaderboard and achievements, which you can share or compete with your friends or others. Five perfectly balanced difficulty levels from sudoku beginner to sudoku expert. Training Mode for newbies and PRO Mode for Daredevils. Undo & Redo Options for PRO Mode. Auto Save to save your sudoku puzzles Autofill Notes Option Auto-Clear Notes Option Auto Error-Checking Option Floating Keys Option Sudoku App looks great on both phones and tablets Most intuitive friendly scoring system A collection of masterfully crafted puzzles from novice to expert difficulty. Pencil marks (Notes) Integrated Sudoku learning tool Selected cell highlight Number highlight Errors highlight Direction highlight / Highlighting Timer Clean interface and smooth controls Fabric, Wood, Chalkboard, Night mode, Coffee, Tiles themes Five Difficulty modes from Flash mode to expert modes This Sudoku is an essential download for any Sudoku or brain training puzzle loving fan! You never need a paper puzzle again! Come enjoy the most beautiful user-friendly Sudoku app..Become a super sudoku solver. Sudoku free game is the best brainteaser game which helps to work out your brain! All for FREE! The classic puzzle game of super sudoku is now available for free on all your ios devices. Support and Feedback If you have any technical problems (or) payment related questions please email us at support@hashcube.com Follow us on TWITTER! @playzio https://twitter.com/playzio Like us on FACEBOOK! https://www.facebook.com/sudokufree http://facebook.com/playzio ## Key features - Multiple difficulty levels - Customizable themes - Offline play - Performance statistics - Global leaderboards - Training and Pro modes - Auto-save and autofill options ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/sudoku-iq-train-your-brain/id1196710560/reviews.md ### 2/5 — 低级错误 *2026-07-19* 一个九宫格里竟然能放两个2 截图了 这么低级的错误 ### 5/5 — 好评 *2025-11-14* 完全免费 界面美观 但没有中文 ### 5/5 — 更新后闪退 *2025-10-30* 更新后闪退 ### 1/5 — 退出不容易 *2024-03-24* 没有中文，退回桌面或者上一级不方便 ### 5/5 — Add too long *2024-02-26, version 3.1.40* Love the game but hate the long ad times between games. Especially when I don’t want those games on the ads. ### 4/5 — Personal preferences. *2024-01-10, version 3.1.30* This version will not rotate & it’s a nuisance that you have to tap twice to make each move. This is annoying. ### 3/5 — Chalkboard theme *2022-01-17, version 3.1.20* There’s no chalkboard theme as written on the details- that’s the option I was looking for with this app. ### 3/5 — Lots of options *2020-10-26, version 3.0.70* I do enjoy the different options. I would like to be able to rotate into landscape. ### 4/5 — No updating problems *2018-07-28, version 2.2* Been over 1 year and developer hasn’t bothered to correct game issues. Problems with #1 not activating when selected resulting in a “x” against player. Seems this game is off their list to improve. So be cautious playing. ### 3/5 — KingT33 *2017-05-21, version 2.2* This app is so frustrating it says there are 36, 55, 105 players online but yet I can never find a match also when I do find a match the whole game is messed up how can two 3s or two 5s go in a 1 to 9 square?????? ## Frequently asked questions about Sudoku IQ ### Does Sudoku IQ have ads? Yes, Sudoku IQ contains advertisements. As a free game, ads are displayed to support its development and continued availability. ### Can I play Sudoku IQ offline? Yes, Sudoku IQ is an offline game and does not require a Wi-Fi connection to play. You can enjoy the puzzles anytime, anywhere. ### What difficulty levels are available in Sudoku IQ? Sudoku IQ offers five perfectly balanced difficulty levels, ranging from Flash mode for beginners to Expert mode for seasoned players. ### How does Sudoku IQ help me improve? The app includes a Sudoku learning tool, training mode, and features like auto-error checking and pencil marks to assist players in developing their Sudoku solver skills. ### What devices is Sudoku IQ compatible with? Sudoku IQ is available on iPhone, iPad, and iPod devices, offering a great experience on both phones and tablets. ### How often is Sudoku IQ updated? The latest version of Sudoku IQ is 3.2.20, and it was last updated on June 18, 2025. Updates typically include new features and performance improvements. ### What is the age rating for Sudoku IQ? Sudoku IQ has an age rating of 4+, making it suitable for children and adults alike. ### Can I compete with others in Sudoku IQ? Yes, Sudoku IQ features a global leaderboard and achievements, allowing you to share your progress and compete with friends and other players worldwide. ## Version history (last 5 releases) ### 3.2.30 — 2026-07-21 Bug fixes and performance improvements ### 3.2.20 — 2025-06-18 Bug fixes and performance improvements ### 3.2.10 — 2025-06-05 Bug fixes and performance improvements ### 3.1.90 — 2025-05-19 Bug fixes and performance improvements ### 3.1.80 — 2025-05-08 Bug fixes and performance improvements ## Apps similar to Sudoku IQ | App | Rating | Price | Category | | --- | --- | --- | --- | | [Block Blast！](https://appshunter.io/ios/app/block-blast/id1617391485) | 4.9 (2,658,989) | Free | Games | | [Sudoku.com - Number Games](https://appshunter.io/ios/app/sudokucom-number-games/id1193508329) | 4.8 (1,843,599) | Free | Games | | [Math Crossword — Number Puzzle](https://appshunter.io/ios/app/math-crossword-number-puzzle/id6469306922) | 4.8 (122,121) | Free | Games | | [Numpuz: Number Puzzle Games](https://appshunter.io/ios/app/numpuz-number-puzzle-games/id1340841589) | 4.8 (105,072) | Free | Games | | [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (305,146) | Free | Games | | [Woodoku - Wood Block Puzzles](https://appshunter.io/ios/app/woodoku-wood-block-puzzles/id1496354836) | 4.7 (659,033) | Free | Games | ## More apps by HashCube, Inc. - [Unlock me! unblock Puzzle game](https://appshunter.io/ios/app/unlock-me-unblock-puzzle-game/id499564175) - [Tic Tac Toe: Multiplayer!](https://appshunter.io/ios/app/tic-tac-toe-multiplayer/id1191449390) All apps by HashCube, Inc.: https://appshunter.io/developer/1021924331 ## Related topics [cordico](https://appshunter.io/ios/topics/cordico) --- *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 2026-08-14.*