# 一生必學的英文字首字根字尾，繁體中文版 vs 關鍵英單：基礎字彙2200

The clearest difference is price: 一生必學的英文字首字根字尾，繁體中文版 at $1.99 against 關鍵英單：基礎字彙2200's $7.99. 一生必學的英文字首字根字尾，繁體中文版 also leads on update cadence (every 8 months vs every 31 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

一生必學的英文字首字根字尾，繁體中文版 costs $1.99 and 關鍵英單：基礎字彙2200 $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

一生必學的英文字首字根字尾，繁體中文版 ships an update every 8 months, 關鍵英單：基礎字彙2200 every 31 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 一生必學的英文字首字根字尾，繁體中文版 | 關鍵英單：基礎字彙2200 |
| --- | --- | --- |
| Price | **$1.99** | $7.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 31 months |
| Monetization | — | Paid |
| Size | 125 MB | 312 MB |
| Requires iOS | **8.1** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Otek International Inc.](https://appshunter.io/developer/318583126) | [Soyong Corporation](https://appshunter.io/developer/339142397) |

## What reviewers say

### 一生必學的英文字首字根字尾，繁體中文版

[App page](https://appshunter.io/ios/app/id949885204)

**Features:** macOS Compatibility

**In-app purchases:** none


### 關鍵英單：基礎字彙2200

[App page](https://appshunter.io/ios/app/2200/id1190032896)

This app uses spaced repetition and a scientific memory system to help users efficiently memorize a large vocabulary. It offers structured learning modules, diverse practice exercises, and progress tracking to build a strong English vocabulary foundation for exams.

**Highlights:** Spaced repetition learning system, Thematic vocabulary categorization, Detailed word breakdowns (phonetics, parts of speech, definitions), Root, prefix, and suffix analysis, Contextual example sentences, Pronunciation practice, Progress tracking and achievement system

**In-app purchases:** none


## Frequently asked questions

### Is 一生必學的英文字首字根字尾，繁體中文版 free?

一生必學的英文字首字根字尾，繁體中文版 costs $1.99, with no in-app purchases.

### Is 關鍵英單：基礎字彙2200 free?

關鍵英單：基礎字彙2200 costs $7.99, with no in-app purchases.

### Do 一生必學的英文字首字根字尾，繁體中文版 or 關鍵英單：基礎字彙2200 have ads?

Neither 一生必學的英文字首字根字尾，繁體中文版 nor 關鍵英單：基礎字彙2200 shows ads.

### Which is updated more often, 一生必學的英文字首字根字尾，繁體中文版 or 關鍵英單：基礎字彙2200?

一生必學的英文字首字根字尾，繁體中文版 ships an update every 8 months, and 關鍵英單：基礎字彙2200 every 31 months. Most recently, 一生必學的英文字首字根字尾，繁體中文版 was updated on November 1, 2026 and 關鍵英單：基礎字彙2200 on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*