CMHK vs 世紀21樓盤
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CMHK
Manage multiple phone numbers from a single device. Easily switch between numbers for calls and texts, and protect your privacy by controlling which number is displayed. Ideal for CMHK postpaid customers needing flexible communication.
- Manage up to 5 numbers on one phone
- Switch numbers for calls and SMS
- Control caller display number
- Activate secondary numbers instantly
- Privacy protection with number switching
- Manage numbers without switching SIMs
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China Mobile Hong Kong “Call Manager”－ CMHK postpaid customers can take control of a maximum of 5 numbers (include 1 HK fixed-line number) in a single mobile phone via “Call Manager”. You can choose any of your mobile numbers to be shown on your counterparty's mobile with caller display function at Hong Kong. Another function of the app is to let you know which number your counterparty is calling. Main feature: One APP for Multi-Number: Easy to manage Multi-Number without switching numbers, changing mobiles or call forwarding. Ease Communication: To switch your mobile numbers for making or receiving calls and sending or receiving SMS freely. Apply the secondary number at your fingertips: the secondary number will be activated right away upon the subscription via APP. It is good for long term and short term use. Privacy Protection: Secondary mobile number can be switched on or off for your privacy protection. *“Call Manager" is an exclusive service available to monthly plan subscribers of China Mobile Hong Kong. #Fixed-line number as “Secondary Number” could support incoming calls only, it cannot make any outgoing calls. #Mobile number as “Secondary Number” could support incoming calls at Roaming only, it cannot make any outgoing calls. * Each SIM card can support up to 4 local numbers (1 main and 3 secondary numbers) * Secondary numbers can be switched off subject to your need * "Duo Hao Tong" is an exclusive service available to monthly plan subscribers of China Mobile Hong Kong
世紀21樓盤
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C21的樓盤廣告，最新世紀21地產代理合作平台！地產代理必須的工具！
Screenshots
Verdict
The clearest difference is update cadence: CMHK at every 6 weeks against 世紀21樓盤's every 3 months. 世紀21樓盤's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CMHK ships an update every 6 weeks, 世紀21樓盤 every 3 months. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.
| Parameter | CMHK | 世紀21樓盤 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 11.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | China Mobile Hong Kong Company Limited | Century 21 Hong Kong Limited |
In-app purchases
CMHK
No in-app purchases
世紀21樓盤
No in-app purchases
