# 地震预警 vs Phone Sync

The clearest difference is device support: Phone Sync at 2 against 地震预警's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 地震预警 sells 3 in-app purchases, starting at $3.99 per 7 days and Phone Sync sells 3 in-app purchases, starting at $6.00 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 地震预警 | Phone Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 143 MB | 54 MB |
| Requires iOS | **13.0** | 14 |
| Devices | — | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [超 付](https://appshunter.io/developer/1839270906) | [鸿滔 卢](https://appshunter.io/developer/1857713238) |

## What reviewers say

### 地震预警

[App page](https://appshunter.io/ios/app/and/id6758761614)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $5.99 | per month |
| 年会员 | $14.99 | one-time |


### Phone Sync

[App page](https://appshunter.io/ios/app/phone-sync-data-transfer/id6760521008)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly membership | $6.00 | per 7 days |
| Monthly membership | $13.00 | per month |
| Annual Membership | $28.00 | one-time |


## Frequently asked questions

### Is 地震预警 free?

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

### Is Phone Sync free?

Phone Sync is free to download, with in-app purchases available.

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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.*