# 來電管家 Call Guard vs 水務易 eWater

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.

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

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.

## The numbers

| Metric | 來電管家 Call Guard | 水務易 eWater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (4 ratings)](https://appshunter.io/ios/app/call-guard/id421384383/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 8.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Subscription | — |
| Size | 23 MB | 87 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SmarTone Mobile Communications Limited](https://appshunter.io/developer/358071022) | [Water Supplies Department, the Government of the HKSAR](https://appshunter.io/developer/790111274) |

## What reviewers say

### 來電管家 Call Guard

[App page](https://appshunter.io/ios/app/call-guard/id421384383)

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:** macOS Compatibility

**In-app purchases:** none


### 水務易 eWater

[App page](https://appshunter.io/ios/app/ewater/id6449998378)

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

**In-app purchases:** none


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