# 地震预警 vs 体重管理

地震预警 and 体重管理 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 地震预警 sells 3 in-app purchases, starting at $0.99 per 7 days and 体重管理 sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

地震预警 ships an update every 6 days, 体重管理 every 3 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | 地震预警 | 体重管理 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 3 days** |
| Size | 37 MB | 30 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [雪梅 白](https://appshunter.io/developer/1612574282) | [润佳 蔡](https://appshunter.io/developer/1813882503) |

## What reviewers say

### 地震预警

[App page](https://appshunter.io/ios/app/id6744721785)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 地震预警倒计时警报周订阅 | $0.99 | per 7 days |
| 地震预警倒计时警报月订阅 | $2.99 | per month |
| 地震预警倒计时警报年订阅 | $19.99 | per year |


### 体重管理

[App page](https://appshunter.io/ios/app/and/id6748057818)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 限时优惠 | $2.99 | per 7 days |
| 限时特价 | $4.99 | per month |
| 超值优惠 | $24.99 | per year |
| 历史最低 | $29.99 | 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 体重管理 free?

体重管理 is free to download, with in-app purchases available.

### Do 地震预警 or 体重管理 have ads?

Neither 地震预警 nor 体重管理 shows ads.

### Which is updated more often, 地震预警 or 体重管理?

地震预警 ships an update every 6 days, and 体重管理 every 3 days. Most recently, 地震预警 was updated on October 30, 2026 and 体重管理 on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*