# 地震预警 vs 左点健康

The clearest difference is in-app purchases: 左点健康 at none against 地震预警's 5. 左点健康 also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. 地震预警 sells 5 in-app purchases, starting at $1.99 per year. 左点健康 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 地震预警 | 左点健康 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (163 ratings)](https://appshunter.io/ios/app/id713947342/reviews)** | — |
| Number of ratings | **163** | — |
| Positive reviews | 29.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 174 MB | 61 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institute of Care-Life](https://appshunter.io/developer/652755841) | [Wuhan Zuo Dian Technology Co., Ltd](https://appshunter.io/developer/1610693176) |

## What reviewers say

### 地震预警

[App page](https://appshunter.io/ios/app/id713947342)

Receive early warnings for earthquakes seconds to tens of seconds before they strike. Customize alert thresholds, view detailed seismic information, and report emergency situations. Access educational content and review past alerts.

**Highlights:** Earthquake early warning service, Customizable alert thresholds, View epicenter, magnitude, and intensity, Emergency distress message upload, Earthquake preparedness education, Review alert history

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 地震预警-VIP订阅 | $1.99 | per year |
| 实时地震预警SVIP订阅 | $3.99 | per year |
| 鼓励支持-支付费用10元 | $0.99 | one-time |
| 打赏支持-愿越做越好 | $0.99 | one-time |
| 鼓励与支持-19.8 | $2.99 | one-time |


### 左点健康

[App page](https://appshunter.io/ios/app/id1621641221)

**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 左点健康 free?

左点健康 is free to download, with no in-app purchases.

### Do 地震预警 or 左点健康 have ads?

地震预警 shows ads; 左点健康 does not.

### Which is updated more often, 地震预警 or 左点健康?

地震预警 ships an update monthly, and 左点健康 monthly. Most recently, 地震预警 was updated on November 6, 2026 and 左点健康 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.*