# 国标通 vs AI Mengbei Diary

The clearest difference is in-app purchases: 国标通 at none against AI Mengbei Diary's 2. 国标通 also leads on iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. AI Mengbei Diary sells 2 in-app purchases, starting at $2.99 per month. 国标通 asks for nothing beyond the download.

## The numbers

| Metric | 国标通 | AI Mengbei Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Size | 38 MB | 100 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [National Center of Standards Evaluation, SAMR](https://appshunter.io/developer/1688507912) | [Hefei Jiniangu Technology Co., Ltd.](https://appshunter.io/developer/1775426079) |

## What reviewers say

### 国标通

[App page](https://appshunter.io/ios/app/id6449272441)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Mengbei Diary

[App page](https://appshunter.io/ios/app/ai-mengbei-diary/id6781113491)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $2.99 | per month |
| 年会员 | $4.99 | per year |


## Frequently asked questions

### Is 国标通 free?

国标通 is free to download, with no in-app purchases.

### Is AI Mengbei Diary free?

AI Mengbei Diary is free to download, with in-app purchases available.

### Do 国标通 or AI Mengbei Diary have ads?

Neither 国标通 nor AI Mengbei Diary 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.*