# 世紀21樓盤 vs 港話通 HKChat

The clearest difference is update cadence: 港話通 HKChat at every 10 days against 世紀21樓盤's every 3 months. 世紀21樓盤's advantage is iOS requirement (11.0 vs 15.5). 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樓盤 ships an update every 3 months, 港話通 HKChat every 10 days. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 世紀21樓盤 | 港話通 HKChat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/hkchat/id6752329493/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 18 MB | 45 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Century 21 Hong Kong Limited](https://appshunter.io/developer/405907603) | [HKChat OmniServe Limited](https://appshunter.io/developer/1838912113) |

## What reviewers say

### 世紀21樓盤

[App page](https://appshunter.io/ios/app/21/id1671702436)

**Features:** macOS Compatibility

**In-app purchases:** none


### 港話通 HKChat

[App page](https://appshunter.io/ios/app/hkchat/id6752329493)

This app provides AI-powered assistance for common legal and financial scenarios in Hong Kong. It offers clear explanations of typical practices, potential risks, and when to seek professional advice. The tool also helps interpret financial information without offering investment recommendations, all in Cantonese.

**Highlights:** Legal scenario explanations, Financial information interpretation, Cantonese language support, Local context understanding, Problem clarification before answering, Risk identification

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

**In-app purchases:** none


## Frequently asked questions

### Is 世紀21樓盤 free?

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

### Is 港話通 HKChat free?

港話通 HKChat is free to download, with no in-app purchases.

### Do 世紀21樓盤 or 港話通 HKChat have ads?

Neither 世紀21樓盤 nor 港話通 HKChat shows ads.

### Which is updated more often, 世紀21樓盤 or 港話通 HKChat?

世紀21樓盤 ships an update every 3 months, and 港話通 HKChat every 10 days. Most recently, 世紀21樓盤 was updated on October 4, 2026 and 港話通 HKChat on October 5, 2026.

---

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