Last updated on January 17th, 2026 at 07:49 am
Sudoku9 Pro – Entertainment Game Review
Sudoku9 Pro is a Entertainment/Board/Puzzle game from Gyuhyeon Jeon, first launched in 31st August 2010.
It’s rated 4+ and currently has 19+ ratings on the App Store.
What Makes Sudoku9 Pro Stand Out
The world's best Sudoku game for iPhone/iPad.
It provides ease of use and almost every feature you can imagine.
Enjoy infinite number of sudoku games with powerful features all your life.
Everyday world sudoku competition
Features
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5 type of Sudoku games
Original sudoku
Greater than sudoku
Killer sudoku
Calculation sudoku
Symbol sudoku -
Daily Sudoku
Playing same sudoku puzzles with worldwide users everyday -
Facebook/Twitter Integration
Record share on Facebook
Puzzle share on Facebook
Record share on Twitter
Puzzle share on Twitter -
Play again, Watch replay
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Provides infinite number of puzzles at all levels.
Provides infinite number of puzzles and you can play it all your life. -
You can choose game level among 5 different levels
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Auto saving
Always the state of games will be saved and then you can see the last screen when you restart the game. -
Memo for candidate numbers
You can enter candidate numbers in a cell that you don't know the answer immediately. It will help you to play the game. -
Auto memo
Auto memo is provided. So you can progress the game quickly. -
Recording game score
Score of the game is recorded and managed. -
Resetting game
If you screw up the game, you can initialize the game. -
Unlimited undo/redo
You can go back previous status using undo/redo function. -
Multiple bookmarks
You can move to saved position using bookmark. You can save 5 bookmarks. -
Supporting 5 languages (English, Korean, Japanese, 2 Chinese)
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Hint function
Hint function tells you the answer of a cell when you meet a difficult cell. One hint is provided every 20 minutes. -
Display duplicate numbers
When you enter a duplicate number, the number will be displayed with different color. It will help you to play games. -
Full support for Retina display
Provides clear screen with supporting Retina display -
When you double tap the screen the mode will be changed to memo mode
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Display with different color where you need to compare the numbers.
The cells that you should compare the numbers will be painted with different color. It will help you to play games. -
Game Center integration
Check worldwide rankings, the best time ranking in each levels -
Various settings
Sound Effects On / Off, change the language, etc. -
Feedback function
You can report a bug or your opinion, and are able to communicate with the developer. -
iOS8 support
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iPhone 6, iPhone 6 Plus support
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World ranking page
This Entertainment game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Sudoku9 Pro is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 20th March 2024
Recent improvements include:
Bug fixes and some feature improvements
Download & Availability
Sudoku9 Pro is available through the official App Store for iOS devices.
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:
This game has many types of sudoku to choose from and does a great job of keeping you interested. Dont go overboard with ads like others we have dropped.
Highly functional yet simple to use.
Didn't purchase the app to watch advertisements.
This game has many types of sudoku to choose from and does a great job of keeping you interested.
This a great game with lots of options to play sudoku or variations! Im a big fan of sumdoku.
Excellent game. Ive played for years now and still enjoy this one.
Have enjoyed playing Sudoku9 for quite some time now. Easy interface and challenging puzzles.
It really calm down, when we were busy when we were low when we were unhappy, it help.
Updates: the game has been working well for a long while now, even thru recent updates. Everything below still applies. We start our day with a daily puzzle. This is still one of most played apps. We play the daily puzzle daily on each of our devices. Everything is working properly, and it has been stable and reliable for a long while now.
Wow, your game requires so much processing power that our 3rd generation iPad could not keep up. We could understand a high res fast action extremely detailed game to require an iPad pro, but come on guys, this is Sudoku we are talking about here, we can play that on our ancient palm pilot.
Absolutely love this app. It's very well thought out. Other apps don't stand up to this.
Es una Apple confiable y divertida, recomendable.
This used to be our best favorite iPad game. Now with the past few updates it has changed directions and is no longer fun for us. The memo function has been destroyed. We would learn to love this version if the memo was returned to the old way.
At first, this app was great. It was free it was easy to use. After a while, though, it started to crash, especially when we go to the score page. That annoys us and as soon as this happened, we deleted it. We are now searching for a better Sudoku app.
We downloaded this app because they said it was free and we got charged for it. What a tipoff.
Nice application but with the os 4.2.1 need update the screen size.
We like the many choices of difficulty levels plus having both options of landscape or portrait is great. The numbers are clear & easy to read as well. Thanks.
We loved this game till the update. Now the game is too tiny. Please fix.
We like sudoku and this is a good version. We just wish we could replay a board. This is mostly so our wife and we could compete for time on the same level. You van reset the numbers at the end, but we can't figure out how to restart it.
On the IPAD the display is only in the upper left. Is this being worked on.
How do you get it to end? We completed the puzzle but the time keeps going and going.
User feedback from Apple App Store
App Details
- Version: 4.930
- Size: 20.42 MB
- iOS: 12.0 or later
- Languages: AR, CA, CS, DA, NL, EN, FI, FR, DE, EL, HE, HU, ID, IT, JA, KO, MS, NB, PL, PT, RO, RU, ZH, SK, ES, SV, TH, ZH, TR, UK, VI
- Content Advisory:
- Developer: Gyuhyeon Jeon
Last updated: 20th March 2024 | Genre: Entertainment, Board | Developer: Gyuhyeon Jeon