# 核辐射检测 vs LASM

The clearest difference is in-app purchases: LASM 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 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

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

核辐射检测 ships an update every 9 days, LASM every 2 months. The most recent releases landed on September 29, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 核辐射检测 | LASM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 28 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [薇 吴](https://appshunter.io/developer/1655264256) | [Shanghai Terjin Information Technology Co., Ltd.](https://appshunter.io/developer/649957877) |

## What reviewers say

### 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 |


### LASM

[App page](https://appshunter.io/ios/app/lasm/id6762499364)

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

**In-app purchases:** none


## Frequently asked questions

### Is 核辐射检测 free?

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

### Is LASM free?

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

### Do 核辐射检测 or LASM have ads?

Neither 核辐射检测 nor LASM shows ads.

### Which is updated more often, 核辐射检测 or LASM?

核辐射检测 ships an update every 9 days, and LASM every 2 months. Most recently, 核辐射检测 was updated on September 29, 2026 and LASM on September 26, 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.*