# 地灾监测 vs TV Cast

The clearest difference is in-app purchases: 地灾监测 at none against TV Cast's 3. 地灾监测 also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. TV Cast sells 3 in-app purchases, starting at $1.99 per 7 days. 地灾监测 asks for nothing beyond the download.

## The numbers

| Metric | 地灾监测 | TV Cast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Size | 25 MB | 91 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [虓 赵](https://appshunter.io/developer/1628264766) | [从山 杜](https://appshunter.io/developer/1842782724) |

## What reviewers say

### 地灾监测

[App page](https://appshunter.io/ios/app/id6447237703)

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

**In-app purchases:** none


### TV Cast

[App page](https://appshunter.io/ios/app/tv-cast-mirroring/id6753265169)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $1.99 | per 7 days |
| Pro Monthly | $4.99 | per month |
| Pro Permanent | $29.99 | one-time |


## Frequently asked questions

### Is 地灾监测 free?

地灾监测 is free to download, with no in-app purchases.

### Is TV Cast free?

TV Cast is free to download, with in-app purchases available.

### Do 地灾监测 or TV Cast have ads?

Neither 地灾监测 nor TV Cast 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.*