# Challenge English vs 清水DEEP体験

The clearest difference is update cadence: 清水DEEP体験 at every 2 days against Challenge English's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Challenge English ships an update every 4 months, 清水DEEP体験 every 2 days. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Challenge English | 清水DEEP体験 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/challenge-english/id960558908/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 39.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 39 MB | 327 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Benesse Corporation](https://appshunter.io/developer/381219440) | [AVR Japan Inc.](https://appshunter.io/developer/1542367944) |

## What reviewers say

### Challenge English

[App page](https://appshunter.io/ios/app/challenge-english/id960558908)

This app helps elementary school students develop balanced English skills in reading, writing, speaking, and listening. It offers personalized learning levels and can help users achieve English proficiency up to the junior high school third-year level. A free trial is available without login.

**Highlights:** Personalized learning levels, Develop reading, writing, speaking, listening, Achieve junior high 3rd-year English proficiency, Free trial available, Requires Benesse service contract

**In-app purchases:** none


### 清水DEEP体験

[App page](https://appshunter.io/ios/app/deep/id6475070592)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Challenge English free?

Challenge English is free to download, with no in-app purchases.

### Is 清水DEEP体験 free?

清水DEEP体験 is free to download, with no in-app purchases.

### Do Challenge English or 清水DEEP体験 have ads?

Neither Challenge English nor 清水DEEP体験 shows ads.

### Which is updated more often, Challenge English or 清水DEEP体験?

Challenge English ships an update every 4 months, and 清水DEEP体験 every 2 days. Most recently, Challenge English was updated on October 23, 2026 and 清水DEEP体験 on October 11, 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.*