Last updated on January 19th, 2026 at 03:10 pm
Sudoku HD – Strategy Game Review
Sudoku HD is a Strategy/Puzzle game from Red Key Software Corporation, first launched in 14th December 2011.
It’s rated 4+ and currently has 54+ ratings on the App Store.
What Makes Sudoku HD Stand Out
With 1,000 puzzles in four different skill levels, Sudoku HD will give you many hours of fun and puzzle solving. Enjoy the challenge of solving Sudoku puzzles whenever or wherever you are using your iPad. Try your luck or test your strategy to improve your best times.
FEATURES
- 1,000 unique handcrafted puzzles
- Assortment of puzzles in different styles: standard, symmetrical and patterned
- Four different skill levels
- Multiple color schemes
- Show Incorrect :: Shows incorrect answer in red
- Multiple Notes :: for each answer square
- Smart Buttons :: Disables the number button when that number is completed on the game board
- Smart Notes :: Removes the number from the notes in the box, column, and row that contains that cell with your correct answer
- Best Times, Progress statistics
- Send an email challenge to a friend so they can try to beat your best time on a puzzle
- Pause the game at any time and resume where you left off
- And much more
This Strategy game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Sudoku HD is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 18th December 2020
Recent improvements include:
Bug fixes and performance improvements.
Download & Availability
Sudoku HD is available through the official App Store for iOS devices.
Requirements: Requires iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 / iPad Mini 3 (Cellular) / iPad Mini 4 / iPad Mini 4 (Cellular) or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
Simply the best Sudoku. Could not find a better one.
We really do like this version of Sudoku. Ive been playing it for years and even though Ive tried others, we keep coming back to this one.
We particularly like this sudoku because the grids are really easy to read unlike some others. The notes are also well developed and easy to use.
None of the fluff that make so many of the Sudoku games have now a days.
We love our sudoku and this is the best way to play it. Don't even bother with the others. Everything about the game, makes it enjoyable. Thank you.
We have been enjoying playing this game for years. It continues to be a daily favorite – with the best features.
Great game very challenging, especially when we try to take out the numbers in order. We can do this through hard but expert takes more time but still doable.
Challenging enough to play for years, and perfect for beginners. We have tried others but this game has all the best features.
Lots of levels and always challenging! Love it.
We love this sudoku version. It is amazing.
We have been using this game for years and it is the best sudoku game we have played.
We're addicted to Sudokus anyway, but this app has all the features we prefer in a Sudoku app. We looked at other similar apps, and they just did not measure up.
Best games, best support response, best most/modest assignment of play level. This is the best folks.
This used to be our favorite sudoku game but not anymore. It is so annoying to be in the middle of an interesting, challenging game and then accidentally hit the "All notes" button. It's easy to do since it's right next to the "Notes" button. Touching the "All notes" button effectively solves the puzzle for you and ends the game prematurely. How frustrating. At present we're looking for another sudoku game.
User feedback from Apple App Store
App Details
- Version: 1.2
- Size: 12.97 MB
- iOS: 12.0 or later
- Languages: DA, NL, EN, FI, FR, DE, IT, JA, KO, NB, PL, PT, RU, ZH, ES, SV, ZH
- Content Advisory:
- Developer: [Red Key Software Corporation]()
Last updated: 18th December 2020 | Genre: Strategy, Puzzle | Developer: Red Key Software Corporation