# 蓝天天气预报 HD vs 爱课堂投屏

The clearest difference is update cadence: 爱课堂投屏 at monthly against 蓝天天气预报 HD's every 31 months. 蓝天天气预报 HD's advantage is iOS requirement (8.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

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

蓝天天气预报 HD ships an update every 31 months, 爱课堂投屏 monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 蓝天天气预报 HD | 爱课堂投屏 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Monthly** |
| Size | 38 MB | 14 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UTA Information & technology Co., Ltd.](https://appshunter.io/developer/635229974) | [Chengdu Friend-Tech Co.,Ltd.](https://appshunter.io/developer/1115783955) |

## What reviewers say

### 蓝天天气预报 HD

[App page](https://appshunter.io/ios/app/hd/id880931422)

**Features:** macOS Compatibility

**In-app purchases:** none


### 爱课堂投屏

[App page](https://appshunter.io/ios/app/id1568436707)

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

**In-app purchases:** none


## Frequently asked questions

### Is 蓝天天气预报 HD free?

蓝天天气预报 HD is free to download, with no in-app purchases.

### Is 爱课堂投屏 free?

爱课堂投屏 is free to download, with no in-app purchases.

### Do 蓝天天气预报 HD or 爱课堂投屏 have ads?

Neither 蓝天天气预报 HD nor 爱课堂投屏 shows ads.

### Which is updated more often, 蓝天天气预报 HD or 爱课堂投屏?

蓝天天气预报 HD ships an update every 31 months, and 爱课堂投屏 monthly. Most recently, 蓝天天气预报 HD was updated on November 6, 2026 and 爱课堂投屏 on November 3, 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.*