Mister Sudoku vs Crazy Math
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mister Sudoku
This app offers a vast collection of Sudoku puzzles in various types and difficulties, from traditional 9x9 to more complex variations. It includes helpful features like pencil marks, smart hints, and mistake detection to enhance the solving experience. Play offline and track your progress with the built-in timer.
- Extensive Sudoku game selection
- Multiple game types (Killer, Jigsaw, X, etc.)
- Various difficulty levels and sizes
- Automatic/Manual Pencil Marks
- 'SMART' Hints and mistake detection
- Offline play functionality
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Enjoy our extensive selection of sudoku games, with types / difficulties and sizes to suit everyone ranging from first timers to seasoned experts. Whether you prefer the traditional 9x9 Sudoku, or something a little bit more exotic like Jigsaw / Killer, we have games to suit your every desire and whim. GAME TYPES / DIFFICULTIES • Wide array of game types to choose from (Standard / Killer / Jigsaw / X / Hyper / CentreDot / Asterix / Offset) • Multiple difficulty levels (up to 9) and sizes. Suitable for everyone from beginners to experts • All games can be solved using logic techniques. No guessing is required! • Each game has only one single solution • Huge selection of games (65,000+) PENCIL MARKS / 'SMART' HINTS • Automatic / Manual Pencil Mark modes • 'SMART' Hints to guide / teach you • Mistake detection / correction USABILITY • Designed by Sudoku players for Sudoku players! • Easy to use interface • Optimised for fewer touches / clicks • Minimal distractions. No distracting graphics • Game Timer keeps track of your playing time • Works OFFLINE, so can be used anywhere Download ‘Mister Sudoku’ today and experience Sudoku the way it was meant to be experienced!
Crazy Math
This game helps improve your calculation speed and offers a fun way to relax or play with others. Choose 'RIGHT' or 'WRONG' to answer math problems as quickly as possible. Compete for the highest score across various difficulty levels.
- Improve calculation speed
- Relaxing gameplay
- Play with friends and family
- Multiple difficulty levels
- Simple 'RIGHT' or 'WRONG' mechanic
- High score competition
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"Crazy Math - Fast calculation" is a small game. It helps you check your calculation speed. And it helps you relax, reduce stress or have fun-time with friends and family. How to play: ◆ Very simple ◆ Choose "RIGHT" or "WRONG" Game levels: ◆ easiest ◆ easy ◆ moderate ◆ hard ◆ hardest The game will to over when you answer incorrectly. So, keep calm and calculate quickly. Try to win the highest score. Become the fastest calculator. Thank you!
Screenshots
Verdict
The clearest difference is ads: Crazy Math at none against Mister Sudoku's shown. Crazy Math also leads on update cadence (daily vs every 4 months) and rating (5.0 vs 4.7). Mister Sudoku's advantage is ratings volume (108 vs 1). On price, in-app purchases, monetization model and device support 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. Mister Sudoku sells 1 one-off in-app purchase and Crazy Math sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Crazy Math holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Mister Sudoku has 108 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 90% of Mister Sudoku's written reviews are positive against 100% of Crazy Math's.
Mister Sudoku ships an update every 4 months, Crazy Math daily. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.
| Parameter | Mister Sudoku | Crazy Math |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (108 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 108 — better | 1 |
| Update frequency | Every 4 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Ludoware | Tien Le |
Customer experience
Mister Sudoku
Crazy Math
Bugs and requests
Mister Sudoku
Reported bugs
4 issues- Crashes at the end of games
- Freezing issues
- Scoring/ranking not working properly
- Compatibility issues with newer iOS versions
Requested features
7 requests- Larger board sizes (16x16, 25x25)
- Pause button
- Offline score tracking
- Calculator feature for killer sudoku
- 9x9 killer sudoku
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- More difficult puzzle levels
- Ability to delete saved games
Crazy Math
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mister Sudoku
- Mister Sudoku 'Full Version'$2.99
Crazy Math
- Add 20 lives$0.99
- Remove advertisement$1.99
- Add 50 lives$1.99
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- Add 100 lives$2.99
- Add 200 lives$3.99
