# 地震预警 vs evowera NSO

The clearest difference is in-app purchases: evowera NSO at none against 地震预警's 20. evowera NSO also leads on ads (none vs shown) and rating (2.1 vs 1.9). 地震预警's advantage is ratings volume (162 vs 7). On price, review sentiment, update cadence 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. evowera NSO asks for nothing beyond the download.

evowera NSO holds the better App Store score, 2.1 against 1.9. That said, the two scores are not equally well evidenced: 地震预警 has 162 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 30% of 地震预警's written reviews are positive against 29% of evowera NSO's, so the app with the better star average is not the one people write more warmly about.

地震预警 ships an update monthly, evowera NSO every 2 weeks. The most recent releases landed on September 22, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | 地震预警 | evowera NSO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (162 ratings)](https://appshunter.io/ios/app/id713947342/reviews) | **[2.1 (7 ratings)](https://appshunter.io/ios/app/evowera-nso/id1632803630/reviews)** |
| Number of ratings | **162** | 7 |
| Positive reviews | **29.8% of reviews** | 28.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 278 MB | 166 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institute of Care-Life](https://appshunter.io/developer/652755841) | [Shen Zhen EVOWERA TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1493153340) |

## 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 |


### evowera NSO

[App page](https://appshunter.io/ios/app/evowera-nso/id1632803630)

Connect to smart oral care devices to track your daily cleaning habits. View detailed data, receive instructions, and customize personal preferences and settings for improved oral hygiene.

**Highlights:** Connects to smart hardware, View daily oral cleaning data, Receive cleaning instructions, Set personal preferences, Customize parameters

**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 evowera NSO free?

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

### Which has better reviews, 地震预警 or evowera NSO?

evowera NSO is rated higher. 地震预警 averages 1.9 out of 5 from 162 ratings, while evowera NSO averages 2.1 from 7 ratings.

### Do 地震预警 or evowera NSO have ads?

地震预警 shows ads; evowera NSO does not.

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

地震预警 ships an update monthly, and evowera NSO every 2 weeks. Most recently, 地震预警 was updated on September 22, 2026 and evowera NSO on June 7, 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.*