# IDExpert vs 台灣自來水

The clearest difference is rating: IDExpert at 4.0 against 台灣自來水's 1.3. IDExpert also leads on iOS requirement (10.0 vs 12.0). 台灣自來水's advantage is update cadence (every 2 weeks vs every 5 weeks) and ratings volume (4 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

IDExpert holds the better App Store score, 4.0 against 1.3. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 11% of IDExpert's written reviews are positive against 13% of 台灣自來水's, so the app with the better star average is not the one people write more warmly about.

IDExpert ships an update every 5 weeks, 台灣自來水 every 2 weeks. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IDExpert | 台灣自來水 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/idexpert/id1447069966/reviews)** | [1.3 (4 ratings)](https://appshunter.io/ios/app/id1546429022/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 11.1% of reviews | **13.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 37 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Changing Information Technology Inc.](https://appshunter.io/developer/329855504) | [台灣自來水公司](https://appshunter.io/developer/862986973) |

## What reviewers say

### IDExpert

[App page](https://appshunter.io/ios/app/idexpert/id1447069966)

This app provides strong authentication for identity security, integrating biometric, push, and OTP methods. It requires a companion Auth Server and is registered by scanning a QR code.

**Highlights:** Biometric authentication, Push notifications for authentication, One-Time Password (OTP) support, QR code registration, Identity security

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### 台灣自來水

[App page](https://appshunter.io/ios/app/id1546429022)

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

**In-app purchases:** none


## Frequently asked questions

### Is IDExpert free?

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

### Is 台灣自來水 free?

台灣自來水 is free to download, with no in-app purchases.

### Which has better reviews, IDExpert or 台灣自來水?

IDExpert is rated higher. IDExpert averages 4.0 out of 5 from 1 ratings, while 台灣自來水 averages 1.3 from 4 ratings.

### Do IDExpert or 台灣自來水 have ads?

Neither IDExpert nor 台灣自來水 shows ads.

### Which is updated more often, IDExpert or 台灣自來水?

IDExpert ships an update every 5 weeks, and 台灣自來水 every 2 weeks. Most recently, IDExpert was updated on October 14, 2026 and 台灣自來水 on October 24, 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.*