Gives away the answers
Removes the thought from the puzzle. Click on a box and it tells you what numbers are available and removes all thought from the game and over simplifies the puzzles.
Problem writing numbers
I am trying this app & started playing daily and could not get number
to go into the cell from the bloc of numbers
to go into the cell from the bloc of numbers
Guest sudoku app
It’s great, get it.
However, the HINT button is too close to the others, which makes it easy to occasionally misclick and use a hint when you don’t mean to.
However, the HINT button is too close to the others, which makes it easy to occasionally misclick and use a hint when you don’t mean to.
Casual Players Punished
It’s insulting that I’m periodically reduced to beginner just because I have a life and can’t always finish puzzles. It will literally let you advance to expert and then demote you to beginner if you go a few days too busy to play. This is terrible design.
GOAT Sudoku
I love coming back to this game over and over throughout the years! It’s always such a pleasure! The last update was four years ago so I’m not holding my breath BUT it would be nice to add a game mode that advances the difficulty after several games. Like start out beginner eternal and work your way up. Either way! Beautifully made game!
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Almost great
Mostly wonderful app, but (1) the most difficult techniques are taught in a very confusing way, and (2) many techniques rely on knowing what was or wasn’t pre-filled on the board, but there’s no way to tell once you’ve started the game. There should be a different font for items we’ve filled vs items that came pre-filled. Would be a very easy fix.
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Save and quit bug?
App is great but there appears to be a bug whenever I use the ‘save and quit’ option as the app keeps shutting down and I have to restart the puzzle
It’s the little things
The broad strokes and overall experience is great, but when it comes to both the best and the worst of this app, it’s all in the details.
I love that it detects if you’ve got music or other content playing in the background when you open it, and mutes the in-game music if you are. I love the sound design that makes it so satisfying to clear out the last of a puzzle in one long chain. I love the practice modes for specific techniques.
But I don’t like how opaque the scoring system is. I don’t like how eternal mode doesn’t give you a button to return to home after finishing a puzzle. I don’t like how the eternal mode puzzles can vary so much in difficulty without warning, such that how well you do is incredibly luck based.
And I wish there was support for sudoku variants like sandwich, thermo, and arrow. I wish the training was more extensive. I wish arcade mode could somehow be a little more intelligent about letting you correct legitimate typos without so heavily penalising it as a mistake. I wish it wasn’t so laggy when you first open it and I wish the music didn’t double up sometimes.
But overall, it’s a good sudoku app. Which is exactly what it set out to be.
I love that it detects if you’ve got music or other content playing in the background when you open it, and mutes the in-game music if you are. I love the sound design that makes it so satisfying to clear out the last of a puzzle in one long chain. I love the practice modes for specific techniques.
But I don’t like how opaque the scoring system is. I don’t like how eternal mode doesn’t give you a button to return to home after finishing a puzzle. I don’t like how the eternal mode puzzles can vary so much in difficulty without warning, such that how well you do is incredibly luck based.
And I wish there was support for sudoku variants like sandwich, thermo, and arrow. I wish the training was more extensive. I wish arcade mode could somehow be a little more intelligent about letting you correct legitimate typos without so heavily penalising it as a mistake. I wish it wasn’t so laggy when you first open it and I wish the music didn’t double up sometimes.
But overall, it’s a good sudoku app. Which is exactly what it set out to be.
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Bad game
Stopped my game and said the puzzle was unsolvable when it was clearly easy to solve.
Best current Sudoku app I can find, by far
Since Sudoku 401 stopped being updated for new iOS versions, I’ve looked for a replacement in vain, using a clumsy non-mobile-friendly web app whenever I wanted to solve a Sudoku.
Until now.
This game has actual challenging puzzles that require nontrivial techniques, and tools nicely designed to help you apply those techniques. It looks nice, and has a UI that seems to have been designed for mobile, and for extensive use. And it even has some nice uncommon UX, like a way to quickly rewind to before you made it unsolvable. While it has some unnecessary gamification, there’s not enough to get in the way. I haven’t gotten too far into the tutorial or the hint system, but what I’ve seen so far looks great.
Still, as unfair as it is to compare this to a game you can no longer even play (that also benefited from years of me getting used to its quirks), it doesn’t make me stop missing 401.
The biggest problem is that the UI is significantly busier, making it harder for the stuff you care about to jump out at you. Most notably, you rarely care about the difference between a 1-3-8 and a 1-3-red4-8, but that red crossed-out 4 is highly visible, preventing you from noticing that it’s one of three 1-3-8s.
Also, the auto-complete is weird, the way it jumps in as soon as you pause (with singles to be automated) but then stops after doing a single block. On a mobile app, you want even more automation than a PC or web app once you’ve done all the challenging bits (or once you’ve done one challenging bit and want to fast-forward to the next); 401 wasn’t as good at this as some of the desktop apps, but this one seems to be even less so.
Until now.
This game has actual challenging puzzles that require nontrivial techniques, and tools nicely designed to help you apply those techniques. It looks nice, and has a UI that seems to have been designed for mobile, and for extensive use. And it even has some nice uncommon UX, like a way to quickly rewind to before you made it unsolvable. While it has some unnecessary gamification, there’s not enough to get in the way. I haven’t gotten too far into the tutorial or the hint system, but what I’ve seen so far looks great.
Still, as unfair as it is to compare this to a game you can no longer even play (that also benefited from years of me getting used to its quirks), it doesn’t make me stop missing 401.
The biggest problem is that the UI is significantly busier, making it harder for the stuff you care about to jump out at you. Most notably, you rarely care about the difference between a 1-3-8 and a 1-3-red4-8, but that red crossed-out 4 is highly visible, preventing you from noticing that it’s one of three 1-3-8s.
Also, the auto-complete is weird, the way it jumps in as soon as you pause (with singles to be automated) but then stops after doing a single block. On a mobile app, you want even more automation than a PC or web app once you’ve done all the challenging bits (or once you’ve done one challenging bit and want to fast-forward to the next); 401 wasn’t as good at this as some of the desktop apps, but this one seems to be even less so.
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Constant crash
I’m mostly just playing good mode, impossible - core. I’m at around 400 games, and now every game would crash at some point, whether is saving, winning, or swiping down to adjust screen brightness. Most of the time no progress is saved and I have to start over. This doesn’t happen as frequently in other modes. Is it a memory management issue b/c I have too many unfinished/finished games?
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Unplayable
Low contrast makes it impossible to play for more than a couple of minutes.
Bug fix
Lots of crashes.
😀😀😀😀😀😀😀😀😀🎉🎉🎉🎉🎉🎉🎉🎉🎊🎊🎊🎊🎊
Very good sudoku game I like it
Almost perfect
There is an issue with auto note. Some numbers sometimes are not show. Like I see that 8 is only available in a single spot, but it’s wrong. 2nd one just has no annotation. Also issue with hints, very often they quite useless.
Developers out to lunch
Signed up for Apple Arcade just to play this game, which was only necessary because the non-Apple Arcade version I paid full price for was bricked over summer 2025.
Played for a couple months and it worked fine, but over the past week or so the daily results have just stopped syncing with Game Center.
App hasn’t had an update in years. Unclear why the developers won’t give it the time of day, or why Apple allows an effectively defunct product to remain part of their subscription game service.
Played for a couple months and it worked fine, but over the past week or so the daily results have just stopped syncing with Game Center.
App hasn’t had an update in years. Unclear why the developers won’t give it the time of day, or why Apple allows an effectively defunct product to remain part of their subscription game service.
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Niegrywalna
Gra uniemożliwia granie. Nie można wprowadzać cyfr w okienka pomimo kilkukrotnego klikania. O co tu chodzi?
Not work
Not work
Macht Laune
Macht Laune und gibt gute Tipps um auch andere Sudokus lösen zu können. Das nicht automatisch via iCloud zwischen iPhone und iPad synchronisiert werde kann ist sehr nervig.
Not great
I’ve been trying to configure the settings that would work, but the app does the work for me, thus taking the fun out of the game
