# 舒尔特方格 vs 21天突破高频词汇

The clearest difference is in-app purchases: 21天突破高频词汇 at none against 舒尔特方格's 1. 舒尔特方格's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

舒尔特方格 costs $0.99 and 21天突破高频词汇 $0.99 up front. 舒尔特方格 sells 1 one-off in-app purchase. 21天突破高频词汇 asks for nothing beyond the download.

舒尔特方格 ships an update every 9 days, 21天突破高频词汇 every 3 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 舒尔特方格 | 21天突破高频词汇 |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Paid | — |
| Size | 6 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [创宏 陈](https://appshunter.io/developer/1884920634) | [鲁扬 王](https://appshunter.io/developer/1890054449) |

## What reviewers say

### 舒尔特方格

[App page](https://appshunter.io/ios/app/id6760579229)

Enhance focus, attention, and cognitive skills with engaging exercises. Practice with numbers, letters, and math challenges, or compete with friends in a split-screen mode. Track your progress and build a consistent training habit.

**Highlights:** Number training for focus and reaction, Letter training for visual search, Split-screen multiplayer mode, Mental math and calculation challenges, Progress tracking and statistics, Daily sign-in reminders

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 终身会员・一次性购买，解锁所有会员功能 | $0.99 | 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 舒尔特方格 free?

舒尔特方格 costs $0.99, 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 舒尔特方格 or 21天突破高频词汇 have ads?

Neither 舒尔特方格 nor 21天突破高频词汇 shows ads.

### Which is updated more often, 舒尔特方格 or 21天突破高频词汇?

舒尔特方格 ships an update every 9 days, and 21天突破高频词汇 every 3 weeks. Most recently, 舒尔特方格 was updated on October 31, 2026 and 21天突破高频词汇 on October 25, 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.*