# Brain Training with Numbers vs 学习成长21天

The clearest difference is in-app purchases: 学习成长21天 at none against Brain Training with Numbers's 1. 学习成长21天 also leads on ads (none vs shown) and update cadence (weekly vs every 4 weeks). On price and device support there is nothing between them.

Both are free to download. Brain Training with Numbers sells 1 one-off in-app purchase. 学习成长21天 asks for nothing beyond the download.

Brain Training with Numbers ships an update every 4 weeks, 学习成长21天 weekly. The most recent releases landed on June 5, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Brain Training with Numbers | 学习成长21天 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/brain-training-with-numbers/id1516096715/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 66 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宏斌 樊](https://appshunter.io/developer/1452129040) | [Guangdong Youyixue Education Technology Co., Ltd.](https://appshunter.io/developer/1508981243) |

## What reviewers say

### Brain Training with Numbers

[App page](https://appshunter.io/ios/app/brain-training-with-numbers/id1516096715)

Enhance memory, attention, and logic with this brain game. Memorize number sequences quickly and recall them to train your short-term numerical memory. Suitable for all ages, it offers progressive challenges to boost cognitive skills.

**Highlights:** Memory sequence memorization, Attention and concentration training, Logic thinking enhancement, Multiple difficulty levels, Offline standalone play, Cognitive skill improvement

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $6.99 | one-time |


### 学习成长21天

[App page](https://appshunter.io/ios/app/21/id1518769944)

**In-app purchases:** none


## Frequently asked questions

### Is Brain Training with Numbers free?

Brain Training with Numbers is free to download, with in-app purchases available.

### Is 学习成长21天 free?

学习成长21天 is free to download, with no in-app purchases.

### Do Brain Training with Numbers or 学习成长21天 have ads?

Brain Training with Numbers shows ads; 学习成长21天 does not.

### Which is updated more often, Brain Training with Numbers or 学习成长21天?

Brain Training with Numbers ships an update every 4 weeks, and 学习成长21天 weekly. Most recently, Brain Training with Numbers was updated on June 5, 2026 and 学习成长21天 on September 13, 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.*