# 電気通信術練習 vs Attention Test

The clearest difference is price: 電気通信術練習 at Free against Attention Test's $0.99. 電気通信術練習 also leads on iOS requirement (12.0 vs 16.6). Attention Test's advantage is in-app purchases (none vs 3). On update cadence, ads and device support there is nothing between them.

電気通信術練習 is free to download; Attention Test costs $0.99 up front. 電気通信術練習 sells 3 one-off in-app purchases. Attention Test asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 電気通信術練習 | Attention Test |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 87.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Size | 5 MB | 1 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAKUYA HIGUCHI](https://appshunter.io/developer/579952589) | [Taiyo Koshiba](https://appshunter.io/developer/1687457132) |

## What reviewers say

### 電気通信術練習

[App page](https://appshunter.io/ios/app/id737386884)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| コンビニコーヒー | $0.99 | one-time |
| おしゃれなコーヒー | $2.99 | one-time |
| 高級コーヒー | $7.99 | one-time |


### Attention Test

[App page](https://appshunter.io/ios/app/attention-test-aptitude-prep/id6775299400)

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

**In-app purchases:** none


## Frequently asked questions

### Is 電気通信術練習 free?

電気通信術練習 is free to download, with in-app purchases available.

### Is Attention Test free?

Attention Test costs $0.99, with no in-app purchases.

### Do 電気通信術練習 or Attention Test have ads?

Neither 電気通信術練習 nor Attention Test shows ads.

### Which is updated more often, 電気通信術練習 or Attention Test?

電気通信術練習 ships an update every 5 months, and Attention Test every 5 months. Most recently, 電気通信術練習 was updated on October 22, 2026 and Attention Test on October 28, 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.*