# 地震预警 vs 优e家

The clearest difference is in-app purchases: 优e家 at none against 地震预警's 20. 优e家 also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.6). 地震预警's advantage is review sentiment (30% vs 0%) and update cadence (monthly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. 地震预警 sells 20 in-app purchases, starting at $1.99 per year. 优e家 asks for nothing beyond the download.

地震预警 ships an update monthly, 优e家 every 3 months. The most recent releases landed on September 22, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | 地震预警 | 优e家 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (162 ratings)](https://appshunter.io/ios/app/id713947342/reviews)** | — |
| Number of ratings | **162** | — |
| Positive reviews | **29.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 278 MB | 78 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institute of Care-Life](https://appshunter.io/developer/652755841) | [海滨 于](https://appshunter.io/developer/1442185638) |

## 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 (20)**

| 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 |
| 打赏鼓励-支付费用5元 | $0.99 | one-time |
| 打赏支持-愿越做越好 | $0.99 | one-time |
| 打赏支持-小小鼓励 | $0.99 | one-time |
| 赞赏鼓励-支付费用15元 | $1.99 | one-time |
| 赞赏支持-支付费用19.8元 | $2.99 | one-time |
| 鼓励与支持-19.8 | $2.99 | one-time |
| 打赏鼓励-支付费用50元 | $6.99 | one-time |
| 鼓励与支持-48.8 | $6.99 | one-time |
| 打赏鼓励-支付费用100元 | $14.99 | one-time |
| 鼓励与支持-99.8 | $14.99 | one-time |
| 鼓励与支持-198 | $29.99 | one-time |
| 鼓励与支持-500 | $69.99 | one-time |
| 打赏鼓励-支付费用598元 | $89.99 | one-time |
| 打赏鼓励-支付费用1000元 | $149.99 | one-time |
| 打赏鼓励-支付费用1988元 | $299.99 | one-time |
| 打赏鼓励-支付费用5988元 | $899.99 | one-time |
| 打赏鼓励-支付费用6988元 | $999.99 | one-time |


### 优e家

[App page](https://appshunter.io/ios/app/e/id1224890652)

This app provides intelligent control for heating and temperature systems, focusing on energy efficiency. It's designed for managing central air conditioning, home heating, and smart home environments.

**Highlights:** Intelligent temperature control, Heating energy saving, Smart home integration, Central air conditioning management, Public building energy saving solutions

**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 优e家 free?

优e家 is free to download, with no in-app purchases.

### Do 地震预警 or 优e家 have ads?

地震预警 shows ads; 优e家 does not.

### Which is updated more often, 地震预警 or 优e家?

地震预警 ships an update monthly, and 优e家 every 3 months. Most recently, 地震预警 was updated on September 22, 2026 and 优e家 on June 1, 2026.

---

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