# 核辐射检测 vs Hourglass Timer

The clearest difference is price: 核辐射检测 at Free against Hourglass Timer's $0.99. 核辐射检测 also leads on update cadence (every 9 days vs monthly) and device support (3 vs 1). Hourglass Timer's advantage is in-app purchases (none vs 1). On ads there is nothing between them.

核辐射检测 is free to download; Hourglass Timer costs $0.99 up front. 核辐射检测 sells 1 one-off in-app purchase. Hourglass Timer asks for nothing beyond the download.

核辐射检测 ships an update every 9 days, Hourglass Timer monthly. The most recent releases landed on September 29, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 核辐射检测 | Hourglass Timer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 28 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [薇 吴](https://appshunter.io/developer/1655264256) | [SMART BIT K.K](https://appshunter.io/developer/1896559487) |

## 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 |


### Hourglass Timer

[App page](https://appshunter.io/ios/app/hourglass-timer-sawaru/id6802140694)

**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 Hourglass Timer free?

Hourglass Timer costs $0.99, with no in-app purchases.

### Do 核辐射检测 or Hourglass Timer have ads?

Neither 核辐射检测 nor Hourglass Timer shows ads.

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

核辐射检测 ships an update every 9 days, and Hourglass Timer monthly. Most recently, 核辐射检测 was updated on September 29, 2026 and Hourglass Timer on October 18, 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.*