# 我與外星人的約定：自我成長指南 vs 每日学成语

The clearest difference is device support: 我與外星人的約定：自我成長指南 at 2 against 每日学成语's —. 每日学成语's advantage is iOS requirement (14.0 vs 17.6). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 我與外星人的約定：自我成長指南 | 每日学成语 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Fortnightly | — |
| Size | 33 MB | 63 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Sheng Yang Huang](https://appshunter.io/developer/1096090905) | [Guoli Jian](https://appshunter.io/developer/1606625391) |

## What reviewers say

### 我與外星人的約定：自我成長指南

[App page](https://appshunter.io/ios/app/id1456205646)

**Features:** macOS Compatibility

**In-app purchases:** none


### 每日学成语

[App page](https://appshunter.io/ios/app/id6448244917)

**In-app purchases:** none


## Frequently asked questions

### Is 我與外星人的約定：自我成長指南 free?

我與外星人的約定：自我成長指南 is free to download, with no in-app purchases.

### Is 每日学成语 free?

每日学成语 is free to download, with no in-app purchases.

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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.*