Comparison

Quick mental calculation vs Calculator Game

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Quick mental calculation

Features
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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!

About

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

Quick mental calculation4 screens
Calculator Game4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 5 level
Quick mental calculation versus Calculator Game: the parameters behind the verdict, then further details
ParameterQuick mental calculationCalculator Game
PriceFreeFree
Update frequencyEvery 11 daysEvery 9 days — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better14.0
Further details — not scored
Size21 MB130 MB
Age rating4+4+
DeveloperERXHisashi Yoshizawa

In-app purchases

None

Quick mental calculation

No in-app purchases

None

Calculator Game

No in-app purchases

Questions

Is Quick mental calculation free?
Quick mental calculation is free to download, with no in-app purchases.
Is Calculator Game free?
Calculator Game is free to download, with no in-app purchases.
Do Quick mental calculation or Calculator Game have ads?
Both Quick mental calculation and Calculator Game show ads.
Which is updated more often, Quick mental calculation or Calculator Game?
Quick mental calculation ships an update every 11 days, and Calculator Game every 9 days. Most recently, Quick mental calculation was updated on October 26, 2026 and Calculator Game on October 25, 2026.

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