# 갑자기말되는영어 문법세상 vs 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One

The clearest difference is price: 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One at Free against 갑자기말되는영어 문법세상's $0.99. 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One also leads on update cadence (every 2 days vs fortnightly). 갑자기말되는영어 문법세상's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One is free to download; 갑자기말되는영어 문법세상 costs $0.99 up front. 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One sells 3 in-app purchases, starting at $4.99 per month. 갑자기말되는영어 문법세상 asks for nothing beyond the download.

갑자기말되는영어 문법세상 ships an update fortnightly, 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One every 2 days. The most recent releases landed on September 22, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 갑자기말되는영어 문법세상 | 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.0 (9 ratings)](https://appshunter.io/ios/app/id447783470/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 77.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Paid | — |
| Size | 50 MB | 240 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ENSAPIA Corporation](https://appshunter.io/developer/429863543) | [taiyo maeno](https://appshunter.io/developer/1798445619) |

## What reviewers say

### 갑자기말되는영어 문법세상

[App page](https://appshunter.io/ios/app/id447783470)

This app focuses on building English grammar skills through sentence construction rather than rote memorization. It uses image-based prompts and chunking to help users naturally form sentences, improving their overall English fluency. Designed for quick, daily practice, it covers essential middle and high school grammar points.

**Highlights:** Sentence construction practice, Image-based prompts, Chunking method, Covers middle/high school grammar, Bookmark function, Difficulty adjustment

**Features:** Vision Pro support

**In-app purchases:** none


### 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One

[App page](https://appshunter.io/ios/app/one/id6760613653)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1ヶ月プラン | $4.99 | per month |
| 3ヶ月プラン | $9.99 | per 3 months |
| 6ヶ月プラン | $14.99 | per 6 months |


## Frequently asked questions

### Is 갑자기말되는영어 문법세상 free?

갑자기말되는영어 문법세상 costs $0.99, with no in-app purchases.

### Is 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One free?

登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One is free to download, with in-app purchases available.

### Do 갑자기말되는영어 문법세상 or 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One have ads?

登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One shows ads; 갑자기말되는영어 문법세상 does not.

### Which is updated more often, 갑자기말되는영어 문법세상 or 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One?

갑자기말되는영어 문법세상 ships an update fortnightly, and 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One every 2 days. Most recently, 갑자기말되는영어 문법세상 was updated on September 22, 2026 and 登録販売者 試験対策｜過去問・問題集・学習アプリ｜登販One on September 26, 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.*