Last updated on December 12th, 2025 at 08:05 pm
Sudoku: Classic Brain Puzzle – Puzzle Game Review
Sudoku: Classic Brain Puzzle is a Puzzle/Casual game from UNICO STUDIO LLC, first launched in 3rd July 2020.
It’s rated 4+ and currently has 1,183+ ratings on the App Store.
What Makes Sudoku: Classic Brain Puzzle Stand Out
Easy sudoku free puzzle game is an addictive brain sudoku puzzle game for very beginners and advanced players. Whether you'd like to relax or keep the mind active, you can pleasantly pass the time with classic sudoku free games! From the creators of Brain Test Tricky Puzzles, Brain Test 2 Tricky Stories and Who Is? Tricky Riddles! This game is a new game and an offline game.
This Classic Sudoku is the puzzle game for your memory, brain, logical thinking and a good time killer! Different sudoku puzzles come in five difficulty levels. You can play very easy sudoku puzzles or very hard sudoku puzzles: Novice Sudoku, Easy Sudoku, Medium Sudoku, Hard Sudoku, and Expert Sudoku! You will find all you need whether you are solving your first sudoku or you've progressed to expert difficulty. Choose any difficulty level you like! Brain games and IQ games are for improving the brain.
This game is a sudoku brain game. It is not soduko, suduko, sudoko or soduku. It is sudoku :)
Challenge your brain anywhere, anytime!
Features:
● Sudoku free games and hundreds of unique challenges!
● More than 5000 classic well-formed sudoku puzzles for free.
● 5 perfectly balanced levels of difficulty. More than 1000 very easy levels.
● Free and offline. Brain games for adults, puzzle games and new games.
● You can take notes to find the numbers easily as on paper. Each time you fill in a cell, notes are automatically updated!
● Statistics: Track your progress for each difficulty level: analyze your best time and other achievements.
● Gorgeous color themes! Play with more comfort, even in the dark theme!
● New games and free games are fun if they help to improve the brain and mind.
● Simple and intuitive design
● Great exercise for the brain
● When you are stuck, the hint button can guide you.
● Free offline games and nice games.
● Track your progress visually with the progress bar.
● Made a mistake? Use unlimited Undos or use Eraser.
● Input buttons are dimmed if a number is used 9 times (or more) in the Sudoku puzzle.
● Support both phones and tablets.
● Auto-save. If you leave the sudoku game unfinished, it will be saved. You can continue playing anytime.
Optional help functions:
● A column, row or block containing only 1 empty cell will be auto-completed.
● Challenge yourself by figuring out your mistakes, or enable auto check for mistakes feature to see your errors.
● Highlight duplicates to avoid repeating numbers in a row, column and block.
● When you select a cell, related row, column, and box are highlighted.
● When you select a cell with a number, the same numbers on board are highlighted.
This is the sedoku app for soduku lovers. If you like to play sodoku game, you should download the sudoko game. We offer 5 difficulty levels. We add new sodoku puzzles frequently. Download now and play suduku!
Have fun!
This Puzzle game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Sudoku: Classic Brain Puzzle is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 21st March 2025
Recent improvements include:
Bug fixes and performance improvements.
Download & Availability
Sudoku: Classic Brain Puzzle is available through the official App Store for iOS devices.
Get Sudoku: Classic Brain Puzzle on App Store
Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
Ive been playing this game for a month now, and ive never had any issues whatsoever with it. However, just now, the game refused to let us exit out of an ad and we lost all our progress. The game itself is completely gone, and we were so close to finishing it. This made mad us really mad, and we just want to continue that singular game.
How how are you supposed to beat expert mode in 1 minute.
We understand the ads are needed but we're seeing inappropriate ones.
This game keeps kicking us out when we start to play and we cant play music with the app either.
Would be fine with some ads but they are so frequent they actually make you suffer in the game and cause you to lose track of your moves.
We enjoy Saduko. Our only issue with this particular app is how often ads play. Many times when we go to place a number, an ad starts which breaks the flow and makes it frustrating to try and pick that back up. At least give more time to complete one game and then do an ad do it doesnt break the flow.
There says there is way to buy no ads. But it doesn't seem to offer it anywhere on the app. We'd really like to keep playing on this app but there's too many ads that distract our game.
This is a great program if it were not for that distrait you from your thought process.
We downloaded this app because it was recommended on another app we use. We love Sudoku and believe Im very good at it. However, the ads on this app are ridiculous and poorly placed. We play other app games with ads that put the ads where it makes sense, not directly in the middle of a game.
First and foremost, we would consider maybe spacing out the buttons to input the numbers in the cell. There have been numerous times where we have unintentionally clicked a number we didnt want to select and lost. Secondly, the ads we understand are a way of helping provide funding for the game but at least let us play until the end and then show the ads. Thats the least we are asking. Like this game could be playable but it is impossible to click out of the ads either that we sometimes just get out of it and cant finish the game.
We cant find our original review, but the issue has been rectified. We bought the stop ads option, and for a while it didnt work, but this morning, one day after we submitted our review, there was an update that fixed the issue and no more ads! We havent been able to see too much of the special events and whatnot this app has to set it apart from the rest yet, but the quick response is enough to make us have a favorable opinion of it. Its generally what youd want from a free sudoku app and it's teaming up with WEBTOON for a chance to get you more coins. Sounds good to us.
Ive played a few different sudoku apps and this is the first one Ive seen that plays ads in the middle of a game. Beginning and end are fine, but its frustrating in a game like this when youre working out the puzzle and suddenly theres an ad and you cant remember where you were. Unnecessary and happens several times per game.
We get ads in between games, but this one plays an ad before, during, and after each game. It takes longer to watch the ad then to actually play the game.
Fun, but The new update may have rectified the app just randomly closing. However, now theres another major problem. We dont mind a short ad between games, but now theyre popping up in the middle of a game & we cant get out of the ad and back to the game. We havent been able to complete a single game since the update. So, if not fixed soon, Ill be deleting the app.. No point if we cant actually PLAY the game. Tried to notify tech support before writing the review, but the link goes to company website, not directly to tech support..Im not going waste our time looking for tech support.
It is apparent the developers are only interested in a get rich quick strategy. We deleted the app after the third ad interrupted during one game. It was bad enough watching an ad after every game, but to continually interrupt games that require a lengthier time for completion is unsatisfactory.
Ads run every 2 or so minutes while youre in the middle of solving. Incredibly irritating.
Whenever we decide to play sudoku on this app, it is ALWAYS filled with ads, which gets annoying really quickly. Not only that but we also get kicked out of the app CONSTANTLY and it is very annoying, which is making us want to get rid of the app entirely. Please developers, fix this god-awful experience and make it more enjoyable for others to use. Just please, Im begging you guys at this point.
Multiple ads in the MIDDLE of the game. Im sorry but your response to reviewers that you need revenue is pathetic. Plenty of games dont cause ads in the middle of the level. More than one ad in the middle of the level is wrong. You dont get any revenue if we stop playing.
This game is not to play the sudoku game, this game is to test your patience. We understand you need to run the ads but totally not during the game. It really discourages people playing the game.
Ive always wanted to try out sudoku and Web Toons was doing an event so we download this app .There are a lot of complaints about the ads and we get it. It happens. You got to do what you Gotta do and all that, but when the ads cause crashes while playing your game makes it very annoying. We wouldve just deleted the app then and there and be done with it. But when an app causes your AirPods to freak out and blow the speaker and your ears, thats when it becomes dangerous . We never write reviews because we think people that read bad reviews because somethings bad is stupid but when its dangerous, we feel like we should say something. We were so worried that it blew up our new AirPods that we didnt even care about the ringing in our ears afterwards. For the actual programmer, what happened was we were watching a YouTube video and picture in picture mode and every time an ad was about to play it started crashing, but we powered through it. And then, instead of crashing, decided to destroy the audio of our video and pitched it up and up and up until it made our ears hurt and blew one of the speakers. It took a while, but the AirPods are working fine now, we think.
Like many have pointed out, the ads keep popping up during the game, not once, not twice but multiple times during every game. We will be about to put a number in and then bam, up pops an ad. Its frustrating and kills the point of the game. Like others have mentioned we have no issue with ads before or after a game but continuously during the game is just killing the relaxation of playing the game. Seriously, it makes no sense. And to make things worse, they are long and repetitive ads. Next there will be a generic response saying, well you can pay for the game and remove the ads. Cool, we almost did that but this app also crashes constantly during games, so why am we going to pay for an app that cant even stay open for an entire game? Fix the app and maybe we will pay for it.
One time sure, but constant ads is not worth it. Deleted the app.
We have a whole bunch of puzzle games, so ads dont bother us if there in between games, but theres like 3 ads every puzzle, while your doing it. And its always the same ad for us, it gets super annoying.
Too many adds for us! We dont mind adds between games but 3 adds in 1 7 minute game is too much.
Seriously Soduko is supposed to be a relaxing game. This app was interrupted constantly with ads. Seriously we were playing one puzzle and was interrupted so many times that we had lost count. Not to mention every time there is an ad you forget where you want to mark on the board. One star is a compliment for this game and thats because we cant score them lower. Worst game that we have ever played and thats saying something. Do not download, you cant even get through one puzzle without interruption.
Was great until the recent update, now there are 2-3 ads in a row in the middle of the game and then this will happen 2-3 times for each game, depending on how long you play. Between games? Ads are totally fine. In the middle of the game when Im about to tap and add numbers? No thank you.
User feedback from Apple App Store
App Details
- Version: 1.2.46
- Size: 183.30 MB
- iOS: 13.0 or later
- Languages: AR, CS, EN, FR, DE, ID, IT, JA, KO, MS, PL, PT, RU, ZH, ES, TH, ZH, TR, VI
- Content Advisory:
- Developer: UNICO STUDIO LLC
Last updated: 21st March 2025 | Genre: Puzzle, Casual | Developer: UNICO STUDIO LLC