# 我與外星人的約定：自我成長指南 vs AI 小學普通話

The clearest difference is in-app purchases: 我與外星人的約定：自我成長指南 at none against AI 小學普通話's 4. AI 小學普通話's advantage is iOS requirement (13.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AI 小學普通話 sells 4 in-app purchases, starting at $1.99 per month. 我與外星人的約定：自我成長指南 asks for nothing beyond the download.

我與外星人的約定：自我成長指南 ships an update fortnightly, AI 小學普通話 weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | 我與外星人的約定：自我成長指南 | AI 小學普通話 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 33 MB | 15 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sheng Yang Huang](https://appshunter.io/developer/1096090905) | [Chinese Education Services Limited](https://appshunter.io/developer/1355571113) |

## 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


### AI 小學普通話

[App page](https://appshunter.io/ios/app/ai/id1535754733)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly subscription | $1.99 | per month |
| 3-month subscription | $3.99 | per 3 months |
| 6-month subscription | $14.99 | per 6 months |
| 一年訂閱 | $22.49 | per year |


## 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 AI 小學普通話 free?

AI 小學普通話 is free to download, with in-app purchases available.

### Do 我與外星人的約定：自我成長指南 or AI 小學普通話 have ads?

Neither 我與外星人的約定：自我成長指南 nor AI 小學普通話 shows ads.

### Which is updated more often, 我與外星人的約定：自我成長指南 or AI 小學普通話?

我與外星人的約定：自我成長指南 ships an update fortnightly, and AI 小學普通話 weekly. Most recently, 我與外星人的約定：自我成長指南 was updated on October 25, 2026 and AI 小學普通話 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.*