Subtraction App vs 鬼の脳トレ
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Subtraction App
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The developer is a first-dan level player. What rank can you get? If you can reach Rank 1–3 on your first try, that’s pretty amazing. ■ Skills tested Decision-making Flexible thinking Reaction speed Adaptability Memory, and more. Both adults and kids can enjoy this. Think of it as a brain-training mini game and give it a try! ^^
鬼の脳トレ
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「鬼計算」− 記憶しながら計算する新しい挑戦! 「鬼計算」モードでは、次々と出される計算問題を記憶し、Nバックの問題を解くことが求められます。このユニークなゲームプレイは、記憶力と計算能力の両方を極限まで高めることができます。 「鬼ブロック」− 視覚記憶の限界に挑む! 「鬼ブロック」モードでは、6個のブロックの中から点滅したブロックを記憶し、何バックまで正確に記憶できるかに挑戦します。集中力と視覚記憶を鍛え、記憶力を最大限に引き出すゲームです。 「鬼の脳トレ」を今すぐダウンロードして、記憶と計算の限界を超える挑戦を始めましょう! このアプリで、あなたの脳力を新しい次元へと引き上げ、普通の脳トレーニングアプリとは一線を画す、刺激的で挑戦的な体験をお楽しみください。
Screenshots
Verdict
The clearest difference is in-app purchases: 鬼の脳トレ at none against Subtraction App's 1. 鬼の脳トレ also leads on ads (none vs shown) and iOS requirement (11.0 vs 14.0). On price 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. Subtraction App sells 1 in-app purchase, starting at $1.99 per month. 鬼の脳トレ asks for nothing beyond the download.
| Parameter | Subtraction App | 鬼の脳トレ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 77 MB |
| Age rating | 4+ | 17+ |
| Developer | Foodmenu.world Inc. | walkertest |
In-app purchases
Subtraction App
- Premium$1.991 Month
鬼の脳トレ
No in-app purchases









