# IoT RTU vs ControlFreqUK

The clearest difference is review sentiment: IoT RTU at 33% against ControlFreqUK's 0%. IoT RTU also leads on update cadence (monthly vs every 8 months) and iOS requirement (8.0 vs 10.3.4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

IoT RTU ships an update monthly, ControlFreqUK every 8 months. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | IoT RTU | ControlFreqUK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Free | Free |
| Size | 8 MB | 19 MB |
| Requires iOS | **8.0** | 10.3.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [朝山 马](https://appshunter.io/developer/596304901) | [CONTROL FREQ LIMITED](https://appshunter.io/developer/1412766887) |

## What reviewers say

### IoT RTU

[App page](https://appshunter.io/ios/app/iot-rtu/id1268543236)

This app provides remote monitoring and control for industrial M2M and IoT devices. It utilizes cellular networks like GSM, GPRS, 3G, 4G, and NB-IoT for seamless communication.

**Highlights:** Remote monitoring, Industrial M2M control, IoT device management, Cellular network support, GSM, GPRS, 3G, 4G, NB-IoT compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### ControlFreqUK

[App page](https://appshunter.io/ios/app/controlfrequk/id1412766888)

This utility app allows remote management of Control Freq GSM systems. It enables control over gates, doors, and intercoms, including user and PIN code management for multi-occupancy entrances. Requires a stable internet connection for proper functionality.

**Highlights:** Remote user management, Control gates and barriers, PIN code management, Intercom system management, Wiegand unit operation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IoT RTU free?

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

### Is ControlFreqUK free?

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

### Do IoT RTU or ControlFreqUK have ads?

Neither IoT RTU nor ControlFreqUK shows ads.

### Which is updated more often, IoT RTU or ControlFreqUK?

IoT RTU ships an update monthly, and ControlFreqUK every 8 months. Most recently, IoT RTU was updated on October 12, 2026 and ControlFreqUK on October 14, 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.*