筆算の学習（わり算・かけ算） vs StroopEffect2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
筆算の学習（わり算・かけ算）
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わり算とかけ算の筆算の結果を表示するソフトです。わり算については、わり算の流れである「たてる」「かける」「ひく」「おろす」を１ステップずつ表示するモードと、それぞれの過程で値を確かめ入力しながら進むモードを用意しました。 わり算については５０問練習問題があります。自分で作った問題(１６問）を保存し、利用できる機能もあります。わり算の筆算のやり方を学ぶのに役立てると思います。
StroopEffect2
This app demonstrates the psychological phenomenon known as the Stroop effect. It presents a time-trial game where users must identify the color of words, even when the word itself names a different color. It's a fun way to explore cognitive processing and reaction times.
- Stroop effect demonstration
- Time trial game mode
- Cognitive processing experiment
- Reaction time measurement
- Educational psychology tool
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Stroop Effect Experiment app. Time Trial Game. Stroop Effect(from WIKIPEDIA in 2011.01.21) In psychology, the Stroop effect is a demonstration of the reaction time of a task. When the name of a color (e.g., "blue," "green," or "red") is printed in a color not denoted by the name (e.g., the word "red" printed in blue ink instead of red ink), naming the color of the word takes longer and is more prone to errors than when the color of the ink matches the name of the color.
Screenshots
Verdict
The clearest difference is price: 筆算の学習（わり算・かけ算） at $0.99 against StroopEffect2's $2.99. 筆算の学習（わり算・かけ算） also leads on iOS requirement (12.0 vs 15.6). StroopEffect2's advantage is device support (3 vs 1). On 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
筆算の学習（わり算・かけ算） costs $0.99 and StroopEffect2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
筆算の学習（わり算・かけ算） ships an update every 9 months, StroopEffect2 every 14 months. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.
| Parameter | 筆算の学習（わり算・かけ算） | StroopEffect2 |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 9 months — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | masafumi sasaki | Yasuyoshi Ota |
In-app purchases
筆算の学習（わり算・かけ算）
No in-app purchases
StroopEffect2
No in-app purchases
Questions
Is 筆算の学習（わり算・かけ算） free?
Is StroopEffect2 free?
Do 筆算の学習（わり算・かけ算） or StroopEffect2 have ads?
Which is updated more often, 筆算の学習（わり算・かけ算） or StroopEffect2?
Other comparisons
