Quick mental calculation vs Calculator Game
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Quick mental calculation
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Game to enter within a certain period of time the answer of mental arithmetic calculations will appear on the exam. Many times in a row you can do correct? It is a challenge to the rankings!
Calculator Game
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Calculator? No, It’s a Game! It looks like you’re using a calculator, but it’s actually a thrilling high-score game! Quickly clear the numbers and see how far you can push your score. With just one tap, you can switch to real calculator mode. The game screen also looks like a calculator, so… maybe it won’t get noticed at work. Simple Rules •Tap the corresponding button to clear numbers flowing from the right. •If the screen fills up with 12 digits, it’s game over. •Pressing the wrong number reduces your life (max 3). •Losing all lives results in game over. Bonuses & Special Features •Press “7” three or more times in a row for a score bonus! •When six “0”s appear on screen, the recovery button unlocks (Life +1). •Clear 50 numbers to activate the AC button (clears all numbers). High Score Tips •Aim for “7” combo bonuses! •Use the AC button wisely to avoid risks. •Take advantage of life recovery to play longer. Leaderboard Feature •Become the world’s best calculator master! •Crush the high scores and claim the top spot. Boost Focus & Train Your Brain! •Improve not only your math skills but also your reflexes and decision-making speed. •Play during work breaks… or just get seriously into the game! Download now and take on the challenge!
Screenshots
Verdict
The clearest difference is iOS requirement: Quick mental calculation at 12.0 against Calculator Game's 14.0. 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. Neither carries in-app purchases, so what you see is what you pay.
Quick mental calculation ships an update every 11 days, Calculator Game every 9 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | Quick mental calculation | Calculator Game |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Every 9 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 21 MB | 130 MB |
| Age rating | 4+ | 4+ |
| Developer | ERX | Hisashi Yoshizawa |
In-app purchases
Quick mental calculation
No in-app purchases
Calculator Game
No in-app purchases
Questions
Is Quick mental calculation free?
Is Calculator Game free?
Do Quick mental calculation or Calculator Game have ads?
Which is updated more often, Quick mental calculation or Calculator Game?
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