Sudoku HD! vs SudoBirds
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sudoku HD!
Experience Sudoku with a feudal Japan theme and stunning graphics. This app offers dual keypads for efficient input, smart note-taking features, and optional error checking. Enjoy multiple difficulty levels and thousands of puzzles.
- Dual keypad entry
- Smart notes feature
- Optional auto-notes
- Optional error checking
- Multiple difficulty levels
- Thousands of puzzles
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Take a journey to feudal Japan with Sudoku Free HD. With beautiful graphics and killer features, Sudoku Free HD is the best Sudoku app available for the iPad. DUAL KEYPAD ENTRY Two separate keypads, one for entries and one for notes, allow you to enter values quickly and easily. No more tedious switching between entry mode and note mode to complete your puzzle. SMART NOTES The optional auto-notes feature enters all of the notes into the puzzle for you and keeps them updated as you solve. If you don't want that much help, the optional smart notes feature automatically deletes values from notes you have entered manually when they are no longer valid. ERROR CHECKING The optional error checker tells you when you have entered an incorrect or illogical value, allowing you to catch errors early and preventing needless frustration. MULTIPLE DIFFICULTY LEVELS Five difficulty levels, from easy to insane, ensure that you will be able to find a puzzle that matches your skill level. With 3,000 total puzzles, you won't run out of puzzles any time soon. Download Sudoku Free HD for free today and start playing Sudoku the way it was meant to be played!
SudoBirds
A challenging puzzle game that combines sudoku mechanics with a unique bird-dropping twist. Strategically place birds to complete lines and squares, aiming for high scores and streaks. Compete against yourself or others in this addictive brain teaser.
- Sudoku and puzzle game blend
- Drop birds to complete lines and squares
- Score bonus points for perpendicular lines
- Earn streaks for consecutive successful moves
- Compete for high scores
- Game Center multiplayer
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SudoBirds is a challenging blend of sudoku and puzzle games with a fun twist. It’s a simple yet addicting game you won’t want to give up. Drop birds to complete lines and squares on the grid. Keep the board clean in order to bet your high score. HOW TO PLAY: - Drop the birds on a 9x9 game board. - Complete all the spaces in lines and squares in order to earn points. - Receive bonus points by completing perpendicular lines at the same time - Earn a streak by make several successful moves in a row. - Compete independently to beat your high score, or with other opponents in game center. HOW TO MASTER SUDOBIRDS? • Take your time and plan each move carefully. • Strategically arrange birds on the board to fill lines and 3x3 grids.. • Score bonus points by maintaining streaks. The more lines destroyed the higher your score. • Don’t wait, you never know what bird(s) will come next. Make every move count!
Screenshots
Verdict
The clearest difference is rating: SudoBirds at 5.0 against Sudoku HD!'s 4.5. SudoBirds also leads on review sentiment (100% vs 87%) and device support (3 vs 1). Sudoku HD!'s advantage is ratings volume (770 vs 16). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sudoku HD! sells 11 one-off in-app purchases and SudoBirds sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SudoBirds holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sudoku HD! has 770 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 87% of Sudoku HD!'s written reviews are positive against 100% of SudoBirds's.
Sudoku HD! ships an update every 6 months, SudoBirds every 4 months. Both last shipped on October 29, 2026.
| Parameter | Sudoku HD! | SudoBirds |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (770 ratings) | 5.0 (16 ratings) — better |
| Positive reviews | 86.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 770 — better | 16 |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 128 MB | 165 MB |
| Age rating | 4+ | 4+ |
| Developer | Optime Software LLC | Bitomit |
Customer experience
Sudoku HD!
SudoBirds
Bugs and requests
Sudoku HD!
Reported bugs
3 issues- Puzzles marked as completed when they are not
- Crashes when trying to play 'insane' level puzzles
- Purchases not restoring across devices
Requested features
4 requests- Allow resetting of puzzles
- Provide level selection options
- Automatically clear notes when number is entered
- Add landscape mode support
SudoBirds
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sudoku HD!
- Puzzle Pack - Showa$0.99
- Puzzle Pack - Kurikara$0.99
- Puzzle Pack - Subushi$0.99
Show 8 moreShow fewer
- Puzzle Pack - Miura$0.99
- Puzzle Pack - Kasagi$0.99
- Puzzle Pack - Ishizu$0.99
- Puzzle Pack - Sakai$0.99
- Puzzle Pack - Genpei$0.99
- Puzzle Pack - Norada$0.99
- Puzzle Pack - Meiji$0.99
- Puzzle Pack - Taisho$0.99
SudoBirds
- Egg Pack #1$0.99
- Egg Pack #2$3.99
- Egg Pack #3$6.99
