# 數之寶島 vs HRV Screening：早期檢測先導計劃

The clearest difference is iOS requirement: 數之寶島 at 12.0 against HRV Screening：早期檢測先導計劃's 18.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

數之寶島 ships an update every 6 months, HRV Screening：早期檢測先導計劃 every 4 months. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 數之寶島 | HRV Screening：早期檢測先導計劃 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Size | 175 MB | 9 MB |
| Requires iOS | **12.0** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [The University of Hong Kong](https://appshunter.io/developer/451384643) | [College of Professional and Continuing Education Limited](https://appshunter.io/developer/924358949) |

## What reviewers say

### 數之寶島

[App page](https://appshunter.io/ios/app/id6744041597)

**Features:** macOS Compatibility

**In-app purchases:** none


### HRV Screening：早期檢測先導計劃

[App page](https://appshunter.io/ios/app/hrv-screening/id6753956332)

**In-app purchases:** none


## Frequently asked questions

### Is 數之寶島 free?

數之寶島 is free to download, with no in-app purchases.

### Is HRV Screening：早期檢測先導計劃 free?

HRV Screening：早期檢測先導計劃 is free to download, with no in-app purchases.

### Do 數之寶島 or HRV Screening：早期檢測先導計劃 have ads?

Neither 數之寶島 nor HRV Screening：早期檢測先導計劃 shows ads.

### Which is updated more often, 數之寶島 or HRV Screening：早期檢測先導計劃?

數之寶島 ships an update every 6 months, and HRV Screening：早期檢測先導計劃 every 4 months. Most recently, 數之寶島 was updated on October 15, 2026 and HRV Screening：早期檢測先導計劃 on October 28, 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.*