Quick mental calculation vs マウンテンバーガーデコレーション
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!
マウンテンバーガーデコレーション
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具材を倒さないように重ねて、巨大なハンバーガータワーを完成させましょう！ 指一つで簡単にプレイできます！ いろいろなギミックも登場！ 全てのハンバーガーを完成させてください！
Screenshots
Verdict
The clearest difference is update cadence: Quick mental calculation at every 11 days against マウンテンバーガーデコレーション's every 11 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Quick mental calculation ships an update every 11 days, マウンテンバーガーデコレーション every 11 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.
| Parameter | Quick mental calculation | マウンテンバーガーデコレーション |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days — better | Every 11 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 21 MB | 168 MB |
| Age rating | 4+ | 4+ |
| Developer | ERX | Takeru Yui |
In-app purchases
Quick mental calculation
No in-app purchases
マウンテンバーガーデコレーション
No in-app purchases
Questions
Is Quick mental calculation free?
Is マウンテンバーガーデコレーション free?
Do Quick mental calculation or マウンテンバーガーデコレーション have ads?
Which is updated more often, Quick mental calculation or マウンテンバーガーデコレーション?
Other comparisons
