# IoT Aqualarm vs Roth QuickStop Sensor

The clearest difference is update cadence: Roth QuickStop Sensor at every 6 weeks against IoT Aqualarm's every 10 months. 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.

IoT Aqualarm ships an update every 10 months, Roth QuickStop Sensor every 6 weeks. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | IoT Aqualarm | Roth QuickStop Sensor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 weeks** |
| Size | 202 MB | 44 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sentient Technology Co. Limited](https://appshunter.io/developer/1598329454) | [Roth North Europe AS](https://appshunter.io/developer/1681766428) |

## What reviewers say

### IoT Aqualarm

[App page](https://appshunter.io/ios/app/iot-aqualarm/id1615567987)

**In-app purchases:** none


### Roth QuickStop Sensor

[App page](https://appshunter.io/ios/app/roth-quickstop-sensor/id6447560535)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IoT Aqualarm free?

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

### Is Roth QuickStop Sensor free?

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

### Do IoT Aqualarm or Roth QuickStop Sensor have ads?

Neither IoT Aqualarm nor Roth QuickStop Sensor shows ads.

### Which is updated more often, IoT Aqualarm or Roth QuickStop Sensor?

IoT Aqualarm ships an update every 10 months, and Roth QuickStop Sensor every 6 weeks. Most recently, IoT Aqualarm was updated on September 9, 2026 and Roth QuickStop Sensor on June 1, 2026.

---

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