# 世紀21將軍澳 vs REX HK

The clearest difference is update cadence: REX HK at every 4 weeks against 世紀21將軍澳's every 5 months. 世紀21將軍澳's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

世紀21將軍澳 ships an update every 5 months, REX HK every 4 weeks. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 世紀21將軍澳 | REX HK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/21/id406778432/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 6 MB | 76 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Multiple Listing System Limited](https://appshunter.io/developer/404512565) | [Pecunia Innovation Limited](https://appshunter.io/developer/1805186431) |

## What reviewers say

### 世紀21將軍澳

[App page](https://appshunter.io/ios/app/21/id406778432)

Access information on private housing and Home Ownership Scheme properties in the Tseung Kwan O district. This app also includes a convenient mortgage loan calculator.

**Highlights:** Tseung Kwan O private housing info, Home Ownership Scheme property details, Mortgage loan calculator, District property listings

**Features:** macOS Compatibility

**In-app purchases:** none


### REX HK

[App page](https://appshunter.io/ios/app/rex-hk/id6743940948)

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

**In-app purchases:** none


## Frequently asked questions

### Is 世紀21將軍澳 free?

世紀21將軍澳 is free to download, with no in-app purchases.

### Is REX HK free?

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

### Do 世紀21將軍澳 or REX HK have ads?

Neither 世紀21將軍澳 nor REX HK shows ads.

### Which is updated more often, 世紀21將軍澳 or REX HK?

世紀21將軍澳 ships an update every 5 months, and REX HK every 4 weeks. Most recently, 世紀21將軍澳 was updated on October 23, 2026 and REX HK on October 16, 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.*