# ぜったい覚える！英検１級単語帳 vs 英検®1級 でた単

The clearest difference is price: ぜったい覚える！英検１級単語帳 at Free against 英検®1級 でた単's $6.99. ぜったい覚える！英検１級単語帳 also leads on in-app purchases (none vs 6). 英検®1級 でた単's advantage is ads (none vs shown) and update cadence (every 2 days vs every 21 months). On device support and iOS requirement there is nothing between them.

ぜったい覚える！英検１級単語帳 is free to download; 英検®1級 でた単 costs $6.99 up front. 英検®1級 でた単 sells 6 in-app purchases, starting at $1.99 per month. ぜったい覚える！英検１級単語帳 asks for nothing beyond the download.

ぜったい覚える！英検１級単語帳 ships an update every 21 months, 英検®1級 でた単 every 2 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | ぜったい覚える！英検１級単語帳 | 英検®1級 でた単 |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | — | **[4.9 (16 ratings)](https://appshunter.io/ios/app/1/id1349212601/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | 66.7% of reviews | **89.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 21 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 70 MB | 205 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ben Walker](https://appshunter.io/developer/385443776) | [Namiko Takahashi](https://appshunter.io/developer/1349212420) |

## What reviewers say

### ぜったい覚える！英検１級単語帳

[App page](https://appshunter.io/ios/app/id1295749587)

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

**In-app purchases:** none


### 英検®1級 でた単

[App page](https://appshunter.io/ios/app/1/id1349212601)

Master English proficiency test vocabulary with this comprehensive app. It offers a vast database of words, practice tests, and personalized word banks to help you achieve a high score. Features include spaced repetition, typing practice, and audio playback for effective learning.

**Highlights:** Extensive vocabulary database (5890+ words), Practice tests with scoring and history, Personalized word banks (7 categories), Typing practice for keyboard input, Audio playback for words, In-app search by word, meaning, or pronunciation

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| でた単プレミアム 1ヶ月 | $1.99 | per month |
| でた単プレミアム 1年間 | $11.99 | per year |
| プレミアムチケット | $3.99 | one-time |
| 語彙問題セットチケットQ1 | $3.99 | one-time |
| 語彙問題セット1級-解説なし(02〜12の11セット) | $5.99 | one-time |
| 語彙問題セット準1級-解説なし(02〜12の11セット) | $5.99 | one-time |


## Frequently asked questions

### Is ぜったい覚える！英検１級単語帳 free?

ぜったい覚える！英検１級単語帳 is free to download, with no in-app purchases.

### Is 英検®1級 でた単 free?

英検®1級 でた単 costs $6.99, and also offers in-app purchases.

### Do ぜったい覚える！英検１級単語帳 or 英検®1級 でた単 have ads?

ぜったい覚える！英検１級単語帳 shows ads; 英検®1級 でた単 does not.

### Which is updated more often, ぜったい覚える！英検１級単語帳 or 英検®1級 でた単?

ぜったい覚える！英検１級単語帳 ships an update every 21 months, and 英検®1級 でた単 every 2 days. Most recently, ぜったい覚える！英検１級単語帳 was updated on November 3, 2026 and 英検®1級 でた単 on November 6, 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.*