# 根记日语 vs 21天突破高频词汇

The clearest difference is price: 根记日语 at Free against 21天突破高频词汇's $0.99. 根记日语 also leads on update cadence (every 5 days vs every 3 weeks). 21天突破高频词汇's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

根记日语 is free to download; 21天突破高频词汇 costs $0.99 up front. 根记日语 sells 3 in-app purchases, starting at $0.99 per month. 21天突破高频词汇 asks for nothing beyond the download.

根记日语 ships an update every 5 days, 21天突破高频词汇 every 3 weeks. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 根记日语 | 21天突破高频词汇 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 109 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [保进 沈](https://appshunter.io/developer/6780013612) | [鲁扬 王](https://appshunter.io/developer/1890054449) |

## What reviewers say

### 根记日语

[App page](https://appshunter.io/ios/app/id6782173077)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 根记pro连续包月 | $0.99 | per month |
| 根记 Pro 单月会员 | $1.99 | per month |
| 根记 Pro 终身会员 | $9.99 | 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 根记日语 free?

根记日语 is free to download, with in-app purchases available.

### 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 根记日语 or 21天突破高频词汇 have ads?

Neither 根记日语 nor 21天突破高频词汇 shows ads.

### Which is updated more often, 根记日语 or 21天突破高频词汇?

根记日语 ships an update every 5 days, and 21天突破高频词汇 every 3 weeks. Most recently, 根记日语 was updated on October 31, 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.*