# MerryIoT Sensor vs DevicesTool

The clearest difference is update cadence: DevicesTool at every 2 months against MerryIoT Sensor's every 5 months. MerryIoT Sensor's advantage is iOS requirement (13.0 vs 17.6). 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.

MerryIoT Sensor ships an update every 5 months, DevicesTool every 2 months. The most recent releases landed on September 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | MerryIoT Sensor | DevicesTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/merryiot-sensor/id1614807356/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 33 MB | 25 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [BROWAN COMMUNICATIONS INCORPORATION](https://appshunter.io/developer/1584963490) | [Shenzhen Dragino technology development co.LTD](https://appshunter.io/developer/1785155238) |

## What reviewers say

### MerryIoT Sensor

[App page](https://appshunter.io/ios/app/merryiot-sensor/id1614807356)

Monitor your home's environment with this app. It tracks air quality, detects water leaks, and alerts you to unexpected movement, helping ensure a healthy and safe living space.

**Highlights:** Air quality monitoring, Water leak detection, Movement detection, Home safety alerts, Healthy home environment

**Features:** macOS Compatibility

**In-app purchases:** none


### DevicesTool

[App page](https://appshunter.io/ios/app/devicestool/id6751866369)

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

**In-app purchases:** none


## Frequently asked questions

### Is MerryIoT Sensor free?

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

### Is DevicesTool free?

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

### Do MerryIoT Sensor or DevicesTool have ads?

Neither MerryIoT Sensor nor DevicesTool shows ads.

### Which is updated more often, MerryIoT Sensor or DevicesTool?

MerryIoT Sensor ships an update every 5 months, and DevicesTool every 2 months. Most recently, MerryIoT Sensor was updated on September 23, 2026 and DevicesTool on October 9, 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.*