Cool Sudoku & Cool Puzzles User Reviews

What users say

Top reviews

Not working

Fix it! Best app when working

Leaderboard......

.....ruined by egotist faking scores to "try and impress". Such a shame

Finally……

….at last no more “leaderboard”, saturated with fakes, trivializing the genuine times generated honestly by lovers of an enjoyable challenge. . 😩

Daily puzzles

Love the killer sudoku! Please resume the daily puzzles.

Daily puzzle error

No daily puzzles for a week.

Please fix it!!!

It’s so frustrating ... please fix it!

Good Assortment

New puzzles not available since new year. What’s happened? 😩

J.s.O

12/31/19. Ap not working. Wont open games

App stopped working

Mostly an ok app. Periodically stops working. Daily puzzles fail to load This time on Jan 1 2026.

Not working

Favorite sudoku app. Until it stops working. Then I have to wait because it’s not maintained

Very cool Cool Sudoku

I play it every day

Cool Sudoku

I cannot persuade updates to occur nor can I contact support. This is frustrating, because this is an app used every day when it works.
The timer issues are very frustrating as the app runs the clock from the moment you start any one puzzle until it accepts you have finished. And on several days a year the click simply will not stop.
Better than Sudoku Times - my big fingers don't mis-hit keys in this app. Having the six varieties is excellent and a guaranteed new puzzle every day is great. The grading is good and it is consistent with the grading of other puzzles of this type.
With the timer fixed - or just having the basis of the calculations declared - it would be a definite five stars.
The app behaves far better on the iPad than the iPhone; loads of practice puzzles and damn good value.
This 2011 review edited in 2015 and 2019- I perceive very few changes; the clock and ranking remain unstable. And I continue to use this app every day.
I perceive that each year things go wrong around Easter. In 2019 nothing downloads and I'm told I have a connection failure - clearly true only for this app.
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daily games crash the app

this used to be the best sudoku app. now, it just crashes. 12.31.25, new year’s eve

Nurikabe

Nurikabe puzzles not opening

Daily puzzle error

For the last 2 days the daily puzzles won’t open.

Puzzle Disappears

Every time I open this puzzles it disappears the problem looks like it’s happened before as that was a problem in June as well. Happening again looks like no one cares to fix problems, so disappointed, time to look for one that fixes their bugs.

Sudoku jigsaw and x-sudoku

I've been playing with these games since 2011. Lately I can be into a game the diabolical or easier and the game will disappear, poof everything that I just spent a long time working on doing ......extremely frustrating! I've noticed this in the last year a few times a month but this week two games in a row please do something about this! I can't be the only one this is happening to. It's not my iPhone 14 Pro. Happened to me too many times in the past with other phones. thanking you in advance if there's anything you can do about this.
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I’ve been playing for years

This is a fantastic app for that daily mind exercise. Thank you developers for keeping it up-to-date!

Best variety Sudoku, great value

This has been my favorite variety sudoku for over a decade. New games of each type offered daily on a set level. For example on Tuesday, you can play a moderate X, tough traditional, tough jigsaw, diabolical killer and moderate Kakuro. Easy games and even an Extreme level are offered on other days. Possibles can be set or cleared, if you want help or to solve the puzzle quicker. I do like another app :) sudoku+ that offers you hints for learning techniques of traditional sudoku while you play. I can then practice with more variety, the games I really enjoy such as X and jigsaw. Also there is no advertising, only the small fee for the app. Really great app, and right now no bugs as far as I can tell. ( I never submit my results so can’t comment on that).
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the app is not working with the latest ios update

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