# Sudoklue — Learn to solve any Sudoku! > Learn Sudoku solving techniques with step-by-step, math-free guidance. (iPhone/iPad app by Martysoft LLC.) - Source: https://appshunter.io/ios/app/sudoklue/id1549550293 (this page in markdown: same URL + `.md`) - Developer: [Martysoft LLC](https://appshunter.io/developer/1493293014) - Category: Games, Entertainment, Puzzle - Price: $7.99 - Rating: 4.76/5 from 66 App Store ratings · 14 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 20 MB - Languages: English - Released: 2021-01-26 - Data updated: 2026-07-30 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/sudoklue/id1549550293/reviews.md ## What is Sudoklue? Sudoklue will teach you how to solve any puzzle with step-by-step, easy to follow instructions — using absolutely no math. Input a puzzle from a newspaper or have Sudoklue create one for you, choosing from five levels of difficulty. Bored with other Sudoku apps? Sudoklue can generate true expert-level puzzles & teach you all the solving techniques needed to solve them, step by step! With Sudoklue, puzzle and logic complexity can remain basic, or if you choose - can climb up into "pull your hair out" levels. Features: – Work on puzzles from any newspaper, magazine, or book – Create your own, one of a kind puzzles – Learn all of the primary solving techniques – Get detailed and easy to understand hints – Get a complete puzzle analysis and difficulty rating – Solve any Sudoku – Virtual pencil for making notes – Includes full Undo/Redo – Verify your current work with the tap of a button – Fill all pencil marks with the tap of a button Sudoklue will give you as much or as little help as you like. It will teach you, step by step, how to use logic to solve any puzzle you can find! ## Key features - Step-by-step solving instructions - Math-free approach - Input puzzles from any source - Generate custom puzzles - Learn primary solving techniques - Detailed hints and analysis - Virtual pencil for notes ## Recent user reviews (10 of 14) All indexed reviews: https://appshunter.io/ios/app/sudoklue/id1549550293/reviews.md ### 5/5 — Amazing app! *2025-04-02* So happy that I found Sudoklue. I’ve been stuck at the same level… well, forever… but this app has helped me to move out of that rut. If I could change one thing… it would be nice to know that I’ve made a mistake when it happens… by the time I see “puzzle invalid,” it’s too late for me to find and fix the problem. But that’s a nice-to-have for this excellent app! ### 5/5 — Worth Paying For *2025-01-15, version 2.0.1* I seldom pay for Apps because it’s extremely difficult to get a refund if you discover the App is rubbish. This App was mentioned on a great web site where you can ‘learn sudoku’ and since that web site was good I decided to pay for it. I’m very pleased that I did. It has levels of difficulty to suit everyone and built in tutorials to improve your skills. I’m working my way up and thoroughly enjoying the App. Oh, and the user interface is excellent. It is the most usable and intuitive way of interacting with the board imaginable! ### 5/5 — App does exactly what it promises *2023-11-30, version 2.0.1* I use this iPad app on my mac and iphone. It is helping me to learn techniques to solve puzzles. The only thing I wish it did was allow numbered inputs from a keyboard. ### 3/5 — Limited learning *2023-09-21, version 2.0.1* If you’re trying to learn without having to put pencil marks in every single cell, good luck. Using Snyder notation isn’t supported, when looking for next steps it just tells you to keep annotating. ### 5/5 — Love the learning mode. Wish I could repeat puzzles *2023-08-05* I am elderly and using this game to sharpen my deductive skills which are aging along with the rest of me. The ability to repeat specific puzzles and specific techniques would aid me substantially in more efficient and focused learning. In the interim, this is the best program I’ve found for advanced Sudoku. ### 4/5 — Great app. *2023-05-09, version 2.0.1* The latest update adds a quick number bar, very nice, but why does the teach me section now need to scroll! Surely those large white buttons at the bottom could be shrunk down a bit, they are far too large as it is. Failing that shrinking the main board a tiny bit or using up a bit of the white space would give enough room. Maybe an option in preferences to lose the jumbo UI elements or be compact or something. I would also say that it would be nice if it remembered the number you had selected. So for example, I pick ‘2’, then go to a cell to remove 2’s from it, as soon as I close that box (which also appears to have grown!) then all the numbers are deselected. I don’t know about anyone else but I tend to try number by number, so if I am looking at ‘2’s then I would like those to stay selected until I choose a different number or click off the board to deselect all numbers. It’s a small point but an irritating one. Just remember what I had selected when the popup number box was activated and then when it is deactivated put it back! Oh, and one last one, an option to restart the current puzzle would be good. I forgot, one more ‘last one’, please, please can we have a landscape option, I love this app it is easily the best sudoku app but don’t force me to keep switching to portrait mode. If a number isn’t a given then pressing it does nothing, it doesn’t highlight it in the notes. Support is non-existent, raised an issue 28th March, it’s May now, nothing. ### 5/5 — This will keep mental decline at bay *2023-01-21, version 2.0.1* Absolutely perfect. Can’t fault this app. The developer responds to suggestions and any advice you want. Unlike the other sudoku apps, this one will give you tips and helps you to develop strategies and systems to enable you to progress. It doesn’t simply tell you what to do, it supports your learning and decision making. I am so grateful for this app as I have learned so much. Brain gym and totally affordable. What’s more none of this bloody money grabbing subscription bollox. ### 5/5 — Can there be a light mode, or any colors? *2022-11-16* Great way to learn sudoku, but it’s frustrating finding pairs and omissions because the pencil marks don’t visually contrast much with the background or the pen marks ### 1/5 — Forced portrait mode *2022-04-27* I absolutely detest having to turn my iPad to portrait mode. Had I known this was the case I would not have purchased the app. ### 5/5 — Fantastic learning resource *2022-03-26* I believe I came across this app not in the App Store, by from its website where I had looked up advanced techniques, tired of solving the hardest puzzles through a guess. It has been a fantastic resource a with pleasant interface, and I highly recommend it. The one thing I’d ask is the ability to hide the strategies required for a game so as to challenge myself without knowing that I’ll need to use a certain technique eventually. I end up playing games on other apps and, if I get stuck, imputing them as an external puzzle. I understand that’s the point of the option, and it is fantastic, but I’d love to be able to add that extra layer of challenge directly in the app. Thank you! ## Frequently asked questions about Sudoklue ### Does Sudoklue have ads? No, Sudoklue is ad-free, providing an uninterrupted learning and puzzle-solving experience. ### What devices does Sudoklue support? Sudoklue is available on iPhone, iPad, and iPod devices, offering a versatile experience across Apple's mobile ecosystem. ### How often is Sudoklue updated? The app was last updated on January 20, 2023, indicating regular maintenance and potential feature additions. ### What is the age rating for Sudoklue? Sudoklue has an age rating of 4+, making it suitable for a wide range of users interested in logic puzzles. ### Can I input Sudoku puzzles from a newspaper into Sudoklue? Yes, Sudoklue allows you to input puzzles from any newspaper, magazine, or book, making it easy to practice with real-world puzzles. ### Does Sudoklue require an internet connection to play? The provided data does not specify offline play capabilities, but its focus on puzzle solving suggests it may function without a constant internet connection. ### What makes Sudoklue different from other Sudoku apps? Sudoklue focuses on teaching solving techniques step-by-step without math, offering adjustable complexity from basic to expert levels, and the ability to input external puzzles. ### What are the different difficulty levels in Sudoklue? Sudoklue offers five levels of difficulty, allowing users to choose puzzles that match their skill level, from basic to 'pull your hair out' expert levels. ## Version history (last 5 releases) ### 2.0.1 — 2023-01-20 Better screen layout for certain devices ### 2.0 — 2023-01-15 Version 2.0!  Added a touch sensitive number bar for quickly highlighting any number in the puzzle. Also highlight pencil mark pairs for easy spotting of XY-wing and naked pairs.  Added ability to hide Technique details. ### 1.3 — 2022-02-14 You can now erase all pencil marks by long-pressing "Fill All" Other miscellaneous fixes and enhancements ### 1.2 — 2022-02-06 User interface tweaks ### 1.1 — 2021-09-09 Miscellaneous fixes and enhancements ## Apps similar to Sudoklue | App | Rating | Price | Category | | --- | --- | --- | --- | | [Sudoklu Adware](https://appshunter.io/ios/app/sudoklu-adware/id1482149005) | — | Free | Games | | [Sudoku & Solver!](https://appshunter.io/ios/app/sudoku-and-solver/id1438884235) | — | Free | Games | | [#1 Sudoku Puzzle Game](https://appshunter.io/ios/app/1-sudoku-puzzle-game/id1598791511) | 5.0 (21) | Free | Games | | [Sudoku of the Day](https://appshunter.io/ios/app/sudoku-of-the-day/id425161413) | 4.4 (109) | Free | Games | | [SUDOKU STRATEGIES & TECHNIQUES](https://appshunter.io/ios/app/sudoku-strategies-and-techniques/id1641467473) | 2.5 (2) | Free | Games | | [Sudoklu](https://appshunter.io/ios/app/sudoklu/id1460618683) | — | $0.99 | Games | ## More apps by Martysoft LLC - [NetPulse App](https://appshunter.io/ios/app/netpulse-app/id1554521874) - [ReViiV](https://appshunter.io/ios/app/reviiv/id1557588292) All apps by Martysoft LLC: https://appshunter.io/developer/1493293014 --- *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 2026-07-30.*