# 脳力＋ 支払い技術検定 vs REVERSI ZERO

The clearest difference is in-app purchases: 脳力＋ 支払い技術検定 at none against REVERSI ZERO's 1. REVERSI ZERO's advantage is iOS requirement (13.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. REVERSI ZERO sells 1 one-off in-app purchase. 脳力＋ 支払い技術検定 asks for nothing beyond the download.

脳力＋ 支払い技術検定 ships an update every 2 months, REVERSI ZERO monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | 脳力＋ 支払い技術検定 | REVERSI ZERO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (75 ratings)](https://appshunter.io/ios/app/reversi-zero/id1126032958/reviews)** |
| Number of ratings | — | **75** |
| Positive reviews | 85.0% of reviews | **86.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 139 MB | 189 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASOBOX](https://appshunter.io/developer/426921883) | [RELEASE BASE, K.K.](https://appshunter.io/developer/1380525668) |

## What reviewers say

### 脳力＋ 支払い技術検定

[App page](https://appshunter.io/ios/app/id426921880)

Test your practical "payment skills" with this brain-training game. Learn to pay efficiently without accumulating excess change. It's an addictive game that helps you master smart payment methods.

**Highlights:** Payment skill assessment, Efficient payment practice, Brain-training gameplay, Addictive payment challenges, Smart payment techniques

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### REVERSI ZERO

[App page](https://appshunter.io/ios/app/reversi-zero/id1126032958)

Experience a classic board game with multiple difficulty levels up to 75. Enjoy intuitive one-handed controls and compete for high scores against players nationwide in a marathon mode.

**Highlights:** Up to level 75 difficulty, Easy one-handed operation, Compete for high scores, Marathon mode with national competition, Levels 1-50 adjustable to user skill

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムサービス30日間 | $3.99 | one-time |


## Frequently asked questions

### Is 脳力＋ 支払い技術検定 free?

脳力＋ 支払い技術検定 is free to download, with no in-app purchases.

### Is REVERSI ZERO free?

REVERSI ZERO is free to download, with in-app purchases available.

### Do 脳力＋ 支払い技術検定 or REVERSI ZERO have ads?

Both 脳力＋ 支払い技術検定 and REVERSI ZERO show ads.

### Which is updated more often, 脳力＋ 支払い技術検定 or REVERSI ZERO?

脳力＋ 支払い技術検定 ships an update every 2 months, and REVERSI ZERO monthly. Most recently, 脳力＋ 支払い技術検定 was updated on October 24, 2026 and REVERSI ZERO on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*