# 学霸拯救地球 vs Focus 专注搭档

The clearest difference is in-app purchases: Focus 专注搭档 at none against 学霸拯救地球's 3. 学霸拯救地球's advantage is iOS requirement (13.0 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. 学霸拯救地球 sells 3 in-app purchases, starting at $0.99 per month. Focus 专注搭档 asks for nothing beyond the download.

## The numbers

| Metric | 学霸拯救地球 | Focus 专注搭档 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (158 ratings)](https://appshunter.io/ios/app/id660145674/reviews)** | — |
| Number of ratings | **158** | — |
| Positive reviews | 95.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 148 MB | 2 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Zhongbao Zhang](https://appshunter.io/developer/890712456) | [德权 晋](https://appshunter.io/developer/1804927036) |

## What reviewers say

### 学霸拯救地球

[App page](https://appshunter.io/ios/app/id660145674)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 按月订阅 | $0.99 | per month |
| 按年订阅 | $2.99 | per year |
| 永久购买 | $3.99 | one-time |


### Focus 专注搭档

[App page](https://appshunter.io/ios/app/focus/id6759327651)

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

**In-app purchases:** none


## Frequently asked questions

### Is 学霸拯救地球 free?

学霸拯救地球 is free to download, with in-app purchases available.

### Is Focus 专注搭档 free?

Focus 专注搭档 is free to download, with no in-app purchases.

### Do 学霸拯救地球 or Focus 专注搭档 have ads?

Neither 学霸拯救地球 nor Focus 专注搭档 shows ads.

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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.*