# 赤シート英単語アプリ/英単語/英文法/英熟語 vs Red Sheet

The clearest difference is ads: 赤シート英単語アプリ/英単語/英文法/英熟語 at none against Red Sheet's shown. 赤シート英単語アプリ/英単語/英文法/英熟語 also leads on iOS requirement (16.0 vs 18.0). Red Sheet's advantage is update cadence (every 4 days vs fortnightly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 赤シート英単語アプリ/英単語/英文法/英熟語 sells 3 in-app purchases, starting at $17.99 per month and Red Sheet sells 1 in-app purchase, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

赤シート英単語アプリ/英単語/英文法/英熟語 ships an update fortnightly, Red Sheet every 4 days. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 赤シート英単語アプリ/英単語/英文法/英熟語 | Red Sheet |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 9 MB | 180 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Kusafuka](https://appshunter.io/developer/1896678535) | [N-Verse LLC](https://appshunter.io/developer/1868412567) |

## What reviewers say

### 赤シート英単語アプリ/英単語/英文法/英熟語

[App page](https://appshunter.io/ios/app/id6769674680)

Learn English vocabulary, idioms, and grammar efficiently with a red sheet-style memorization mode. Choose courses for TOEIC, Eiken, exams, or daily conversation. Features include quizzes, custom word lists, and learning progress management.

**Highlights:** English vocabulary, idiom, and grammar learning, Red sheet-style memorization mode, Quiz-based learning, Custom word list creation, Learning progress tracking, Create word lists from photos

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プレミアムプラン | $17.99 | per month |
| 3か月プレミアムプラン | $39.99 | per 3 months |
| 年額プレミアムプラン | $119.99 | per year |


### Red Sheet

[App page](https://appshunter.io/ios/app/red-sheet-kun-ai-study-sheets/id6775183078)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Red Sheet-kun Premium Annual | $2.99 | per year |


## Frequently asked questions

### Is 赤シート英単語アプリ/英単語/英文法/英熟語 free?

赤シート英単語アプリ/英単語/英文法/英熟語 is free to download, with in-app purchases available.

### Is Red Sheet free?

Red Sheet is free to download, with in-app purchases available.

### Do 赤シート英単語アプリ/英単語/英文法/英熟語 or Red Sheet have ads?

Red Sheet shows ads; 赤シート英単語アプリ/英単語/英文法/英熟語 does not.

### Which is updated more often, 赤シート英単語アプリ/英単語/英文法/英熟語 or Red Sheet?

赤シート英単語アプリ/英単語/英文法/英熟語 ships an update fortnightly, and Red Sheet every 4 days. Most recently, 赤シート英単語アプリ/英単語/英文法/英熟語 was updated on October 14, 2026 and Red Sheet 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.*