# 地震预警 vs PhyOTA

The clearest difference is rating: 地震预警 at 1.9 against PhyOTA's 1.0. 地震预警 also leads on review sentiment (30% vs 0%) and ratings volume (162 vs 1). PhyOTA's advantage is in-app purchases (none vs 20) and ads (none vs shown). On price, update cadence, device support and iOS requirement 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. PhyOTA asks for nothing beyond the download.

地震预警 holds the better App Store score, 1.9 against 1.0. That said, the two scores are not equally well evidenced: 地震预警 has 162 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of 地震预警's written reviews are positive against 0% of PhyOTA's.

地震预警 ships an update monthly, PhyOTA every 6 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 地震预警 | PhyOTA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (162 ratings)](https://appshunter.io/ios/app/id713947342/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/phyota/id1492851629/reviews) |
| Number of ratings | **162** | 1 |
| Positive reviews | **29.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 278 MB | 3 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Institute of Care-Life](https://appshunter.io/developer/652755841) | [奉加微电子](https://appshunter.io/developer/1472300997) |

## 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 |


### PhyOTA

[App page](https://appshunter.io/ios/app/phyota/id1492851629)

This utility app facilitates over-the-air (OTA) upgrades for BLE chips. It supports various chip generations and features like Xip and encrypted OTA functionality, offering a simple integration demo.

**Highlights:** BLE chip OTA upgrades, Support for 1st gen 6202 chips, Support for 2nd gen 6212 chips, Long packet transmission, Xip support, Encrypted OTA functionality

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

**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 PhyOTA free?

PhyOTA is free to download, with no in-app purchases.

### Which has better reviews, 地震预警 or PhyOTA?

地震预警 is rated higher. 地震预警 averages 1.9 out of 5 from 162 ratings, while PhyOTA averages 1.0 from 1 ratings.

### Do 地震预警 or PhyOTA have ads?

地震预警 shows ads; PhyOTA does not.

### Which is updated more often, 地震预警 or PhyOTA?

地震预警 ships an update monthly, and PhyOTA every 6 weeks. Most recently, 地震预警 was updated on September 22, 2026 and PhyOTA on September 17, 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.*