# 脳力＋ 支払い技術検定 vs Cross Word ZERO

The clearest difference is update cadence: Cross Word ZERO at fortnightly against 脳力＋ 支払い技術検定's every 2 months. Cross Word ZERO also leads on monetization model (free with ads vs free with in-app purchases) and iOS requirement (13.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

脳力＋ 支払い技術検定 ships an update every 2 months, Cross Word ZERO fortnightly. Both last shipped on October 29, 2026.

## The numbers

| Metric | 脳力＋ 支払い技術検定 | Cross Word ZERO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **85.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free with ads** |
| Size | 139 MB | 158 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, 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


### Cross Word ZERO

[App page](https://appshunter.io/ios/app/cross-word-zero/id1176001478)

This free crossword puzzle app is perfect for studying Japanese. It offers helpful features like automatic input focus, error highlighting in red, and automatic saving to enhance your puzzle-solving experience.

**Highlights:** Free crossword puzzles, Ideal for Japanese study, Automatic input focus, Mistakes displayed in red, Automatic save function

**In-app purchases:** none


## 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 Cross Word ZERO free?

Cross Word ZERO is free to download, with no in-app purchases.

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

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

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

脳力＋ 支払い技術検定 ships an update every 2 months, and Cross Word ZERO fortnightly. Most recently, 脳力＋ 支払い技術検定 was updated on October 29, 2026 and Cross Word ZERO on October 29, 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.*