# 台灣自來水 vs WAFERKEY

The clearest difference is update cadence: 台灣自來水 at every 2 weeks against WAFERKEY's every 2 months. 台灣自來水 also leads on iOS requirement (12.0 vs 15.6). WAFERKEY's advantage is review sentiment (23% vs 13%). 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.

台灣自來水 ships an update every 2 weeks, WAFERKEY every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 台灣自來水 | WAFERKEY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.3 (4 ratings)](https://appshunter.io/ios/app/id1546429022/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 13.0% of reviews | **23.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 37 MB | 140 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [台灣自來水公司](https://appshunter.io/developer/862986973) | [WAFERLOCK Corp.](https://appshunter.io/developer/1578239744) |

## What reviewers say

### 台灣自來水

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

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

**In-app purchases:** none


### WAFERKEY

[App page](https://appshunter.io/ios/app/waferkey/id1578239742)

This app provides a user-friendly mobile platform for access control. It allows you to unlock doors with your phone and manage access flexibly with options for recurring, temporary, or one-time permissions. You can also share access and review lock history.

**Highlights:** Unlock doors via smartphone, Flexible access management, Recurring, temporary, and one-time access, Share access permissions, Track lock history, Bluetooth 4.0+ compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 台灣自來水 free?

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

### Is WAFERKEY free?

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

### Do 台灣自來水 or WAFERKEY have ads?

Neither 台灣自來水 nor WAFERKEY shows ads.

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

台灣自來水 ships an update every 2 weeks, and WAFERKEY every 2 months. Most recently, 台灣自來水 was updated on November 3, 2026 and WAFERKEY on November 3, 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.*