Coffer Crack vs Calc Ninja
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Coffer Crack
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1. Challenge your IQ. It is said that only 5% of people can pass the difficult mode. 2. What is your winning rate? Let's challenge it together. 3. There are some props in the game to help you complete the challenge.. 4. Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 5.Privacy Policy:http://www.iphonesir.com/privacypolicy.html
Calc Ninja
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Calc Ninja is a mental-math battle puzzle. Fill the blanks in each equation to strike down the oni! How to play 1. Each battle shows an equation with blank tiles, e.g. ( โก + โก ) ร โก = 18. 2. Tap number tiles to fill the blanks so the equation is true. 3. A correct answer strikes the demon; a wrong answer or running out of time lets it strike you. Content - 30 scrolls across 6 ninja ranks (Shoden to Gokui) - 16 unique oni bosses with a demon gallery - Operators and parentheses stay fixed. You only place the numbers, so it is pure mental math. Great for - Adults who want daily brain training - Anyone who likes number puzzles and quick arithmetic - Fans of a Japanese ninja-and-oni theme Free to play. No account required. * This app is a work of fiction. Characters and story are not based on real people or events.
Screenshots
Verdict
The clearest difference is in-app purchases: Calc Ninja at none against Coffer Crack's 4. Coffer Crack's advantage is ads (none vs shown) and update cadence (weekly vs monthly). On price there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Coffer Crack sells 4 one-off in-app purchases. Calc Ninja asks for nothing beyond the download.
Coffer Crack ships an update weekly, Calc Ninja monthly. Both last shipped on October 13, 2026.
| Parameter | Coffer Crack | Calc Ninja |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly โ better | Monthly |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 76 MB | 118 MB |
| Age rating | 4+ | 9+ |
| Developer | shouhui qi | kotaro yamada |
In-app purchases
Coffer Crack
- +1$0.99
- Get 1$0.99
- Upgradation$0.99
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- Pack$1.99
Calc Ninja
No in-app purchases









