# 查课啦 vs 21天突破高频词汇

The clearest difference is update cadence: 查课啦 at every 4 days against 21天突破高频词汇's every 3 weeks. 查课啦 also leads on device support (3 vs 1). 21天突破高频词汇's advantage is iOS requirement (17.0 vs 26.0). On ads and in-app purchases there is nothing between them.

查课啦 ships an update every 4 days, 21天突破高频词汇 every 3 weeks. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 查课啦 | 21天突破高频词汇 |
| --- | --- | --- |
| Price | — | **$0.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 25 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [怀诚 魏](https://appshunter.io/developer/1859498127) | [鲁扬 王](https://appshunter.io/developer/1890054449) |

## What reviewers say

### 查课啦

[App page](https://appshunter.io/ios/app/id6756248801)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 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 查课啦 free?

Pricing for 查课啦 is not currently listed on the App Store.

### 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 查课啦 or 21天突破高频词汇 have ads?

Neither 查课啦 nor 21天突破高频词汇 shows ads.

### Which is updated more often, 查课啦 or 21天突破高频词汇?

查课啦 ships an update every 4 days, and 21天突破高频词汇 every 3 weeks. Most recently, 查课啦 was updated on November 5, 2026 and 21天突破高频词汇 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.*