Crazy Math vs Blockdoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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!
Blockdoku
This puzzle game merges Sudoku and block-filling mechanics on a 9x9 grid. Strategically place blocks to clear lines horizontally, vertically, or in squares for points and combos. Compete globally for the highest score and earn daily badges.
- Sudoku and block puzzle combination
- 9x9 grid gameplay
- Horizontal, vertical, and square line clearing
- Combo scoring for high scores
- Global score competition
- Daily badge rewards
- Chance item for strategic advantage
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Blockdoku is a new puzzle game that combines Sudoku and Block Puzzle. Remove blocks by filling them horizontally, vertically, and squares to score points. If you form combos, you get a high score. Challenge the highest score. Compete for the best score with users around the world. How to play the game -When you start the game, you will be given a 9x9 grid. -If the given block is filled horizontally, vertically, or squarely, the block disappears and points are scored. -If you remove multiple lines of blocks at the same time, you get more points as a combo. -Use the Chance item in the moment of crisis. -Play the game every day to get a badge. -Report bugs or comments and chat with developers.
Screenshots
Verdict
The clearest difference is rating: Crazy Math at 5.0 against Blockdoku's 4.0. Crazy Math also leads on ads (none vs shown) and update cadence (daily vs every 9 days). Blockdoku's advantage is ratings volume (7 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. Crazy Math sells 5 one-off in-app purchases and Blockdoku sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Crazy Math holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Blockdoku has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Crazy Math's written reviews are positive against 80% of Blockdoku's.
Crazy Math ships an update daily, Blockdoku every 9 days. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.
| Parameter | Crazy Math | Blockdoku |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (7 ratings) |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Daily — better | Every 9 days |
| Ads | No — better | Yes |
| 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 | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Tien Le | Gyuhyeon Jeon |
Customer experience
Crazy Math
Blockdoku
In-app purchases
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
Blockdoku
- Remove advertisements$0.991 Month
