Subtraction Math Master 2 vs 3D記憶力テスト～脳トレ・認知症予防アプリ
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Subtraction Math Master 2
This game challenges players to improve their subtraction speed and mental math skills. It features a "LEVEL UP" system that increases difficulty with correct answers and includes leaderboards and achievements for competitive play.
- 2-minute subtraction games
- LEVEL UP difficulty system
- Leaderboards and achievements
- Intuitive user interface
- Share results globally
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• Test and train your subtraction speeds in only 2 minutes a game! • New LEVEL UP system: The more you solve the harder it gets! • Share results with family, friends and the rest of the world. • Leaderboards & Achievements included (Game Center) Features: - The all new LEVEL UP system will challenge you! - Stylish and intuitive user interface - Subtract numbers from as fast as possible - Share scores with family and friends - Challenge everyone on Leaderboards & Earn all Achievements (Game Center) How to play: 1) Subtract numbers together for 2 minutes. 2) For every 8 correct answers, you LEVEL UP and increase the difficulty. Find out who among you is a Subtraction Master!
3D記憶力テスト～脳トレ・認知症予防アプリ
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[遊び方] ①建物の中にある家具や物を覚える。 ②建物の中にある家具や物が変化する。 ③変化した場所を見つける。 [難易度設定] タイトル画面の「難易度設定」ボタンから、難易度をカスタマイズできます。 ステージ、覚える時間、回答時間、変化する数、間違えて良い回数、などを設定できます。 ステージは「初級」「中級」「上級」の３種類から選択できます。
Screenshots
Verdict
The clearest difference is in-app purchases: 3D記憶力テスト～脳トレ・認知症予防アプリ at none against Subtraction Math Master 2's 1. Subtraction Math Master 2's advantage is ads (none vs shown) and iOS requirement (8.0 vs 12.0). On price, update cadence 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 Math Master 2 sells 1 one-off in-app purchase. 3D記憶力テスト～脳トレ・認知症予防アプリ asks for nothing beyond the download.
Subtraction Math Master 2 ships an update every 34 months, 3D記憶力テスト～脳トレ・認知症予防アプリ every 29 months. The most recent releases landed on September 21, 2026 and March 21, 2026 respectively.
| Parameter | Subtraction Math Master 2 | 3D記憶力テスト～脳トレ・認知症予防アプリ |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 34 months | Every 29 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 4 MB | 199 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Li | Takuma Takahashi |
In-app purchases
Subtraction Math Master 2
- REMOVE ADS (Subtraction 2)$0.99
3D記憶力テスト～脳トレ・認知症予防アプリ
No in-app purchases
Questions
Is Subtraction Math Master 2 free?
Is 3D記憶力テスト～脳トレ・認知症予防アプリ free?
Do Subtraction Math Master 2 or 3D記憶力テスト～脳トレ・認知症予防アプリ have ads?
Which is updated more often, Subtraction Math Master 2 or 3D記憶力テスト～脳トレ・認知症予防アプリ?
Other comparisons
