# 地震预警 vs 安全守护

The clearest difference is in-app purchases: 安全守护 at none against 地震预警's 3. 安全守护 also leads on device support. 地震预警's advantage is iOS requirement (13.0 vs 15). On price there is nothing between them.

Both are free to download. 地震预警 sells 3 in-app purchases, starting at $9.99 per month. 安全守护 asks for nothing beyond the download.

## The numbers

| Metric | 地震预警 | 安全守护 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | Yes |
| Update frequency | — | Every 4 days |
| Size | 70 MB | 26 MB |
| Requires iOS | **13.0** | 15 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [树轩 魏](https://appshunter.io/developer/1728876217) | [浩然 薛](https://appshunter.io/developer/1875303337) |

## What reviewers say

### 地震预警

[App page](https://appshunter.io/ios/app/and/id6479295528)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP包月 | $9.99 | per month |
| VIP包季 | $29.99 | per 3 months |
| VIP包年 | $39.99 | per year |


### 安全守护

[App page](https://appshunter.io/ios/app/and/id6758967608)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 地震预警 free?

地震预警 is free to download, with in-app purchases available.

### Is 安全守护 free?

安全守护 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.*