脳トレ21 vs Arrow Tap Flow
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
脳トレ21
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足して21の数字をつくれ！ ブラックジャック風新感覚脳トレパズルです。 簡単操作のゲームであなたの脳年齢を診断します。 「脳トレ21」はシンプルでハマり度120%の脳トレゲームです。 操作方法は数字をタップするだけ！ 遊べば遊ぶほど脳が活性化されます。 あなたの脳は何歳ですか？？
Arrow Tap Flow
Test your timing and coordination in this rhythm-based game. Tap directional arrows in sync with on-screen patterns to clear levels and achieve high scores. Enjoy offline play with progressive difficulty and responsive feedback.
- Rhythm-based gameplay
- Progressive difficulty levels
- Local score tracking
- Optional vibration/sound feedback
- Offline play
- Touch-optimized interface
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Arrow Tap Flow is a lightweight mobile game designed to test timing, focus, and hand-eye coordination. Players follow directional arrow patterns and tap the matching controls in rhythm to clear stages and improve scores. The app includes progressive difficulty levels, short sessions suitable for quick play, local score tracking, and optional vibration/sound feedback for better responsiveness. A tutorial explains controls on first launch, and all core gameplay is available offline. No external hardware is required. The interface is simple and touch-optimized for phones. The app does not contain social posting features and can be used independently as a single-player experience.
Screenshots
Verdict
The clearest difference is iOS requirement: 脳トレ21 at 11.0 against Arrow Tap Flow's 13.0. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.
| Parameter | 脳トレ21 | Arrow Tap Flow |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (119 ratings) — better |
| Positive reviews | — | 55.6% of reviews |
| Number of ratings | — | 119 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 107 MB | 253 MB |
| Age rating | 4+ | 4+ |
| Developer | ZERONE | 文浩 杨 |
In-app purchases
脳トレ21
No in-app purchases
Arrow Tap Flow
No in-app purchases
