SUKOH vs Calc Ninja
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
SUKOH
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Pure: Calculation Puzzle Game "SUKOH" is a stoic calculation puzzle game. Trace a single line over the numbers and symbols that fall from the top of your screen to create formulas whose answers match the values given in the challenge questions. Create formulas with a result that matches the values given in the challenge questions to clear each stage. Formulas are created using numbers from 0 to 9, addition (+), subtraction (-), multiplication (x) and division (÷) symbols as well as exponents (^). The game is designed with two different modes. “Puzzle” mode has no time limits, allowing you to take on the calculations slowly and pensively; “Trial” mode races you against the clock to see how many correct answers you can churn out within the time limit. Once you have cleared 10,000 stages, you will likely be ready for calculations using three digits and even negative numbers. -Features * An incredible 200 million stages. * Displays an IQ score when you clear a trial, allowing you to know your own IQ. * Ideal for limbering up an inflexible brain. This is brain training fit for the elite! * Simple and easy-to-use screen design that facilitates thinking. * Recording and streaming possible through "Everyplay". * Share your records and screenshots on SNS. * Achievements and leaderboards compatible with "Apple GameCenter".
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. ( □ + □ ) × □ = 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 ads: SUKOH at none against Calc Ninja's shown. SUKOH also leads on device support (3 vs 1) and iOS requirement (9.1 vs 18.0). Calc Ninja's advantage is update cadence (monthly vs every 16 months). On price 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. Neither carries in-app purchases, so what you see is what you pay.
SUKOH ships an update every 16 months, Calc Ninja monthly. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.
| Parameter | SUKOH | Calc Ninja |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 16 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 181 MB | 118 MB |
| Age rating | 4+ | 9+ |
| Developer | Takemi Matsumoto | kotaro yamada |
In-app purchases
SUKOH
No in-app purchases
Calc Ninja
No in-app purchases









