# Terncy vs Water device

The clearest difference is rating: Terncy at 2.8 against Water device's 1.0. Terncy also leads on review sentiment (25% vs 0%) and ratings volume (6 vs 1). On price, update cadence, 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.

Terncy holds the better App Store score, 2.8 against 1.0. That said, the two scores are not equally well evidenced: Terncy has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of Terncy's written reviews are positive against 0% of Water device's.

Terncy ships an update every 5 weeks, Water device every 2 months. The most recent releases landed on June 5, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | Terncy | Water device |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/terncy/id1321273998/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/water-device/id1573363503/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 106 MB | 12 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Xiaoyan Technology Co., Ltd.](https://appshunter.io/developer/1321273997) | [Wenzhou Runxin Manufacturing Machine Co., Ltd.](https://appshunter.io/developer/1573363505) |

## What reviewers say

### Terncy

[App page](https://appshunter.io/ios/app/terncy/id1321273998)

Control and manage your Terncy smart home devices with ease. This app allows you to add, remove, and configure devices, and even update their firmware. Enjoy seamless integration with Siri for voice commands.

**Highlights:** Control Terncy home automation devices via Siri, Update Terncy device firmware, Add and remove devices, Configure devices

**Features:** macOS Compatibility

**In-app purchases:** none


### Water device

[App page](https://appshunter.io/ios/app/water-device/id1573363503)

Experience the benefits of soft water for a better lifestyle. This application helps you understand and manage your water quality.

**Highlights:** Soft water benefits, Water quality management, Lifestyle improvement

**In-app purchases:** none


## Frequently asked questions

### Is Terncy free?

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

### Is Water device free?

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

### Which has better reviews, Terncy or Water device?

Terncy is rated higher. Terncy averages 2.8 out of 5 from 6 ratings, while Water device averages 1.0 from 1 ratings.

### Do Terncy or Water device have ads?

Neither Terncy nor Water device shows ads.

### Which is updated more often, Terncy or Water device?

Terncy ships an update every 5 weeks, and Water device every 2 months. Most recently, Terncy was updated on June 5, 2026 and Water device on August 20, 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.*