# LogiBrain Hitori — Challenge your brain > Logic puzzle game based on the Japanese number game Hitori. (iPhone/iPad app by Kevin Van Rooijen.) - Source: https://appshunter.io/ios/app/logibrain-hitori/id1264159942 (this page in markdown: same URL + `.md`) - Developer: [Kevin Van Rooijen](https://appshunter.io/developer/1019316881) - Category: Games, Puzzle - Price: Free with in-app purchases - Rating: 4.80/5 from 21 App Store ratings · 12 written reviews indexed - Age rating: 4+ - Requires: iOS 18.0 · 24 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, European Portuguese, European Spanish - Released: 2017-08-12 - Data updated: 2026-08-19 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/logibrain-hitori/id1264159942/reviews.md ## What is LogiBrain Hitori? Get rid of your paper Hitori, you won't need it anymore! Thousands of unique puzzles, 5 difficulty levels for beginners and pro players, 7 different grid sizes and everything completely for free and presented to you in a fantastic, approachable and handy format. LogiBrain Hitori is based on the traditional Japanese number puzzle game where you use your logical reasoning to figure out which numbers to gray out. The objective is to eliminate numbers by making some squares gray until no row or column has more than one occurrence of a given number (Hitori is Japanese for "Alone"). Additionally, gray cells cannot be adjacent, although they can be diagonal to one another. The remaining numbered cells must be connected to each other. LogiBrain Hitori includes puzzles in different sizes (5x5, 6x6, 7x7, 8x8, 9x9, 10x10 and 12x12) and different levels of difficulty (very easy '1 star', easy '2 stars', medium '3 stars', hard '4 stars' and very hard '5 stars') If you love classic puzzle games like Sudoku, Heyawake, Kuromasu, or Binary, then you should definitely try LogiBrain Hitori. Challenge your brain and get ready to spend hours trying to solve all puzzles. RULES 1. No duplicate numbers in rows and columns. 2. Eliminate numbers by marking them in gray. 3. Gray cells may not be horizontally and vertically adjacent. (diagonally is allowed) 4. White cells must form a single component and not be isolated. Each puzzle has exactly one solution, which can be deduced by logical reasoning. No guessing required. The first tap on the field will add a circle to mark the cell as correct (a circle will appear around the number), a second tap makes the cell gray, a third tap will make the cell white again. Simple rules, eh? So warm up your brain and get ready for hours of puzzle fun! GAME FEATURES - Challenge yourself on 5 difficulty levels, from easy for beginners to extremely hard for masters. - 7 different grid sizes (5x5, 6x6, 7x7, 8x8, 9x9, 10x10, 12x12) - No hidden in-app purchases, all puzzles are free to play - Search for errors and highlight them - Auto-save game, leave the game at any time and come back later to finish where you left it - Optimized for solving puzzles on mobile or tablet device. - Check for errors and remove them - Get a hint or the complete solution - Go steps back and forth - A great workout for your mind If you like LogiBrain Hitori, please take the time to give us a nice review. This helps us to make the app even better, thanks in advance! Questions, problems or improvements? Contact Us: ========= - Email: support@pijappi.com - Website: https://www.pijappi.com - Support: https://www.pijappi.com/apps/logibrain-hitori/?store=apple#support Follow us for news and updates: ======== - Facebook: https://www.facebook.com/pijappi - Instagram: https://www.instagram.com/pijappi - X: https://x.com/pijappi - YouTube: https://www.youtube.com/@pijappi ## Key features - Thousands of unique Hitori puzzles - 5 difficulty levels - 7 grid sizes - Auto-save game progress - Hint and solution features - Error checking and highlighting ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove ads | $4.99 | one-time | ## Recent user reviews (10 of 12) All indexed reviews: https://appshunter.io/ios/app/logibrain-hitori/id1264159942/reviews.md ### 5/5 — Cérebro Ativo *2025-06-23, version 1.5.5* Muito Bom ### 4/5 — Mais objetividade nas resoluções *2024-11-13, version 1.5.2* Sugiro: se um número for marcado errado numa coluna ou linha o mesmo deveria ser marcado de amarelo ou laranja. No mais, o jogo é muito bom. ### 4/5 — Hitori *2024-10-08* Poderia ser mais objetivo se acertamos ou não. ### 5/5 — Great game! *2020-12-12* Update: Still love the game. Ads are minimum. They NEVER interrupt your game and usually are before you play. I really like this game. I’m tempted to look for it so I’ll have a book of puzzles when I want to put my phone down. Great game!!👍🏾👍🏾👍🏾 This is my first time playing this game and I’m addicted! The rules are really easy (they could be worded a little better) and they have different sizes and levels. Great logic game👌🏾👌🏾 ### 5/5 — Great app! *2020-11-25* I really wanted to learn how to solve Hitori puzzles so I turned to LogiBrain to teach me! That’s how I learned how to do Binary puzzles. It really is a great,well designed app deserving a 5 star rating. ### 1/5 — After buying still advertisements *2020-10-01* Why, after multiple times of paying is there still advertisements? How many times do I have to buy? I love this game and the way you have it set up, but will no more buy - and after another advertisement will no more waste my money. Update: Still not fixed These reviews must not be read. Guess they just want your money an don’t care about anything else. ### 5/5 — Great game.... *2020-08-08* I am really enjoying this game and I am glad I decided to give it a try! The only thing I would suggest is a tutorial of some kind. While the rules are not difficult to understand, I actually had to google the directions and examples to figure out how to play the first time. If you don’t want to do a tutorial, even providing tips with screenshots (such as the different ways to start a puzzle) would be very helpful! ### 5/5 — Well done, lots of puzzles *2020-06-22* EDIT 6/22/20: I have written a new review based on the latest version, in which the developer addressed several previous concerns. Thank you! The user interface has an old-school look and feel, but it is highly usable, so no real complaint. The UI is very responsive and clear. I appreciate the option to pay a one-time fee to remove ads, and at $0.99 this is a no-brainer for me. Once you have solved a level, you are able to look over the solved board at your leisure before proceeding to the next level. I wish more games allowed this because I like to celebrate my hard-earned accomplishment for a short time. On the downside, if I hadn’t already known how to play Hitori, I don’t think I would have been able to figure it out from the directions provided here. Also, I never use hints, but I find that I occasionally hit the Show Solution button by accident. I wish it were not as easy to do that. A very solid effort by a developer who listens to reviews and makes improvements. **Developer response:** Thank you for your comprehensive review. We will review it and see which points we can implement/change ### 5/5 — It seems so simple *2019-12-01* Not a lot of chills and thrills but I love this game. It is a great logic, deduction game! -Dec 2019 ### 5/5 — Finally, a good Hitori app! *2019-06-10* Used to love Hitori on the website Hitori-San, been looking for a good app for ages. Really like this one so far ## Frequently asked questions about LogiBrain Hitori ### What is LogiBrain Hitori? LogiBrain Hitori is a mobile game based on the traditional Japanese number puzzle game where players use logical reasoning to eliminate numbers and solve puzzles. It offers a digital alternative to paper-based Hitori games. ### How do you play LogiBrain Hitori? The objective is to gray out numbers so that no row or column has duplicate numbers, and gray cells are not adjacent horizontally or vertically. White cells must remain connected. ### Does LogiBrain Hitori have ads? Yes, LogiBrain Hitori contains advertisements. As a free game, ads are displayed to support its development and continued availability. ### What are the difficulty levels and grid sizes in LogiBrain Hitori? The game features 5 difficulty levels, from very easy to very hard, and 7 different grid sizes ranging from 5x5 to 12x12, catering to both beginners and experienced players. ### Can I save my progress in LogiBrain Hitori? Yes, the game includes an auto-save feature, allowing you to leave a puzzle at any time and return later to continue from where you left off. ### Does LogiBrain Hitori require an internet connection to play? The description does not explicitly state offline play capabilities, but the auto-save feature suggests it can be played without a constant connection. However, some features might require internet. ### What is the age rating for LogiBrain Hitori? LogiBrain Hitori has an age rating of 4+, making it suitable for a wide range of players. It is available on iPhone and iPad devices. ### How often is LogiBrain Hitori updated? The latest version is 1.5.14, last updated on March 23, 2026. This indicates a history of updates, though the exact frequency is not specified. ## Version history (last 5 releases) ### 1.5.20 — 2026-08-15 Bug fixes and performance improvements ### 1.5.18 — 2026-07-03 Bug fixes and performance improvements ### 1.5.17 — 2026-04-15 Bug fixes and performance improvements ### 1.5.16 — 2026-04-07 Bug fixes and performance improvements ### 1.5.15 — 2026-04-03 Bug fixes and performance improvements ## Apps similar to LogiBrain Hitori | App | Rating | Price | Category | | --- | --- | --- | --- | | [Kakuro Cross Sums Puzzles](https://appshunter.io/ios/app/kakuro-cross-sums-puzzles/id1542498165) | 2.3 (3) | Free | Games | | [Tic-Tac-Logic: X or O?](https://appshunter.io/ios/app/tic-tac-logic-x-or-o/id658817018) | 4.8 (518) | Free | Games | | [Light Cross - LightUp Puzzle](https://appshunter.io/ios/app/light-cross-lightup-puzzle/id656913964) | 4.6 (50) | Free | Games | | [Hashi Puzzle](https://appshunter.io/ios/app/hashi-puzzle/id6478944513) | 4.8 (18) | Free | Games | | [Kakuro - Cross sums](https://appshunter.io/ios/app/kakuro-cross-sums/id898546561) | 1.0 (1) | Free | Games | | [Link! - Connect numbers](https://appshunter.io/ios/app/link-connect-numbers/id1057423719) | 4.6 (19) | Free | Games | ## More apps by Kevin Van Rooijen - [LogiBrain Grids](https://appshunter.io/ios/app/logibrain-grids/id1019316882) - [LogiBrain Numbers](https://appshunter.io/ios/app/logibrain-numbers/id1022806891) - [LogiBrain Binary](https://appshunter.io/ios/app/logibrain-binary/id1136183233) - [LogiKids Binary](https://appshunter.io/ios/app/logikids-binary/id1198719978) - [Spot the Skyline](https://appshunter.io/ios/app/spot-the-skyline/id1219805631) All apps by Kevin Van Rooijen: https://appshunter.io/developer/1019316881 --- *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 2026-08-19.*