# 语宙单词 vs 21天突破高频词汇

The clearest difference is price: 21天突破高频词汇 at $0.99 against 语宙单词's $9.99. 21天突破高频词汇 also leads on in-app purchases (none vs 6). 语宙单词's advantage is update cadence (every 2 days vs every 3 weeks). On ads, device support and iOS requirement there is nothing between them.

语宙单词 costs $9.99 and 21天突破高频词汇 $0.99 up front. 语宙单词 sells 6 one-off in-app purchases. 21天突破高频词汇 asks for nothing beyond the download.

语宙单词 ships an update every 2 days, 21天突破高频词汇 every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 语宙单词 | 21天突破高频词汇 |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/id6747289018/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 65 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [辉 王](https://appshunter.io/developer/1680867101) | [鲁扬 王](https://appshunter.io/developer/1890054449) |

## What reviewers say

### 语宙单词

[App page](https://appshunter.io/ios/app/id6747289018)

This app uses a smart spaced repetition algorithm based on psychological principles to help you memorize vocabulary. It focuses on exam-specific word lists and offers a distraction-free learning mode for efficient study.

**Highlights:** Spaced repetition algorithm, Exam-specific vocabulary lists, Scientific anti-forgetting, Distraction-free learning mode, Clean and efficient interface, Multi-device synchronization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 限时促销终身会员 | Free | one-time |
| 30天付费会员卡 | $0.99 | one-time |
| 30天兑换会员卡 | $0.99 | one-time |
| 促销年度会员卡 | $9.99 | one-time |
| 年度会员卡 | $14.99 | one-time |
| 终身会员 | $19.99 | one-time |


### 21天突破高频词汇

[App page](https://appshunter.io/ios/app/21/id6797169848)

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

**In-app purchases:** none


## Frequently asked questions

### Is 语宙单词 free?

语宙单词 costs $9.99, and also offers in-app purchases.

### Is 21天突破高频词汇 free?

21天突破高频词汇 costs $0.99, with no in-app purchases.

### Do 语宙单词 or 21天突破高频词汇 have ads?

Neither 语宙单词 nor 21天突破高频词汇 shows ads.

### Which is updated more often, 语宙单词 or 21天突破高频词汇?

语宙单词 ships an update every 2 days, and 21天突破高频词汇 every 3 weeks. Most recently, 语宙单词 was updated on October 30, 2026 and 21天突破高频词汇 on October 31, 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.*