# MqttClient vs Coldlink

The clearest difference is update cadence: Coldlink at every 3 days against MqttClient's every 10 months. Coldlink also leads on iOS requirement (13.0 vs 16.0). 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.

MqttClient ships an update every 10 months, Coldlink every 3 days. The most recent releases landed on October 6, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | MqttClient | Coldlink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/mqttclient/id928932457/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 1 MB | 4 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Luca Ceci](https://appshunter.io/developer/923764949) | [Henan Plustrace Electronic Technology Co.,Ltd](https://appshunter.io/developer/1870756229) |

## What reviewers say

### MqttClient

[App page](https://appshunter.io/ios/app/mqttclient/id928932457)

This utility app provides a fast client for MQTT, the internet of things protocol. It allows users to test broker servers, monitor topics, send and receive messages, and save configurations for quick access. It's designed for testing MQTT broker activities.

**Highlights:** MQTT client functionality, Broker server testing, Topic monitoring, Send and receive messages, Save configurations, User/password authentication

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

**In-app purchases:** none


### Coldlink

[App page](https://appshunter.io/ios/app/coldlink/id6758077321)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MqttClient free?

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

### Is Coldlink free?

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

### Do MqttClient or Coldlink have ads?

Neither MqttClient nor Coldlink shows ads.

### Which is updated more often, MqttClient or Coldlink?

MqttClient ships an update every 10 months, and Coldlink every 3 days. Most recently, MqttClient was updated on October 6, 2026 and Coldlink on September 26, 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.*