Comparison

來電管家 Call Guard vs 水務易 eWater

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

來電管家 Call Guard

This service automatically blocks millions of unwanted calls, including spam, overseas numbers, and hidden caller IDs. Customize your call experience by setting up a VIP list or personal blacklist for ultimate control.

Highlights
  • Automatic junk call interception
  • Overseas call notification
  • VIP contact list
  • Personal blacklist
  • Hidden caller ID blocking
Features
Read full description

Call Guard has blocked over 400 million junk calls for all users since its launch*, providing a hassle-free service to protect against unwanted calls. Call Guard has 5 key features: 1) No setups required, the database is updated automatically to intercept junk calls at the network level 2) Overseas Call Notification - Identify incoming overseas calls 3) VIP List - Only allow calls from approved contacts 4) Personal Blacklist - Blocks numbers you don't want to hear from 5) Blocks calls with a hidden caller ID^ SmarTone is committed to protecting your privacy, and our Call Guard service never saves your contact lists. Please visit https://www.smartone.com/hk/callguard-en for details. To activate the service: 1. Please call (852) 2880 2688 or visit any of our stores 2. Download and install the "Call Guard" app in your iPhone 3. Open the app and choose from a variety of functions, based on your needs Service is provided by SmarTone. We are always excited to hear from you. Email: customer_care@smartone.com Enquiry: (852) 2880 2688 * Launched in Aug 2011. ^ The caller ID of some international calls may be hidden due to the IDD setting of the overseas provider. • This service is exclusive to SmarTone users. This service requires a monthly subscription fee. Please visit https://www.smartone.com/hk/callguard-en for details. Terms and conditions apply to this service.

About

水務易 eWater

Features
Read full description

The Water Supplies Department launched a new integrated mobile app "eWater", consolidating the existing WSD mobile apps into a one-stop personalised digital water services information platform with an optimised user interface and enhanced features. Through “eWater”, users can access a wide range of water supplies information such as real-time push notifications on latest updates on water suspension and resumption, anytime and anywhere. Users can also manage their accounts, and apply for various water services directly within the app, including taking up and closing of water accounts, settling water bill payments via Faster Payment System with e-banking mobile apps, applying for e-bill services, and viewing billing summaries and payment histories without the need to deal with the submissions by post or in-person, providing a one-stop experience for users to access WSD services in an easy and flexible manner. “eWater” shows the amount due on the latest water bill with push notification options for bill issuance and payment deadlines. Users may also subscribe to specific concerned districts or housing estates to receive location-specific water suspension and resumption alerts, ensuring they stay informed about any water supplies status in their concerned area.

Screenshots

來電管家 Call Guard4 screens
水務易 eWater4 screens

Verdict

The call

The clearest difference is update cadence: 水務易 eWater at monthly against 來電管家 Call Guard's every 3 months. 來電管家 Call Guard's advantage is iOS requirement (12.0 vs 15.5). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

來電管家 Call Guard ships an update every 3 months, 水務易 eWater monthly. The most recent releases landed on June 8, 2026 and September 12, 2026 respectively.

Scorecard2 real differences · 8 level
來電管家 Call Guard versus 水務易 eWater: the parameters behind the verdict, then further details
Parameter來電管家 Call Guard水務易 eWater
PriceFreeFree
Rating2.3 (4 ratings) — better—
Positive reviews8.9% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationSubscription—
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.5
Further details — not scored
Size23 MB87 MB
Age rating4+4+
DeveloperSmarTone Mobile Communications LimitedWater Supplies Department, the Government of the HKSAR

In-app purchases

None

來電管家 Call Guard

No in-app purchases

None

水務易 eWater

No in-app purchases

Questions

Is 來電管家 Call Guard free?
來電管家 Call Guard is free to download, with no in-app purchases.
Is 水務易 eWater free?
水務易 eWater is free to download, with no in-app purchases.
Do 來電管家 Call Guard or 水務易 eWater have ads?
Neither 來電管家 Call Guard nor 水務易 eWater shows ads.
Which is updated more often, 來電管家 Call Guard or 水務易 eWater?
來電管家 Call Guard ships an update every 3 months, and 水務易 eWater monthly. Most recently, 來電管家 Call Guard was updated on June 8, 2026 and 水務易 eWater on September 12, 2026.

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