# 地灾监测 vs 核辐射检测

The clearest difference is in-app purchases: 地灾监测 at none against 核辐射检测's 1. 核辐射检测's advantage is update cadence (every 9 days vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 核辐射检测 sells 1 one-off in-app purchase. 地灾监测 asks for nothing beyond the download.

地灾监测 ships an update every 7 months, 核辐射检测 every 9 days. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 地灾监测 | 核辐射检测 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 9 days** |
| Size | 25 MB | 28 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [虓 赵](https://appshunter.io/developer/1628264766) | [薇 吴](https://appshunter.io/developer/1655264256) |

## What reviewers say

### 地灾监测

[App page](https://appshunter.io/ios/app/id6447237703)

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

**In-app purchases:** none


### 核辐射检测

[App page](https://appshunter.io/ios/app/id6464470636)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 核辐射检测永久会员 | $2.99 | one-time |


## Frequently asked questions

### Is 地灾监测 free?

地灾监测 is free to download, with no in-app purchases.

### Is 核辐射检测 free?

核辐射检测 is free to download, with in-app purchases available.

### Do 地灾监测 or 核辐射检测 have ads?

Neither 地灾监测 nor 核辐射检测 shows ads.

### Which is updated more often, 地灾监测 or 核辐射检测?

地灾监测 ships an update every 7 months, and 核辐射检测 every 9 days. Most recently, 地灾监测 was updated on October 1, 2026 and 核辐射检测 on September 29, 2026.

---

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