MqttClient vs Coldlink
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MqttClient
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.
- MQTT client functionality
- Broker server testing
- Topic monitoring
- Send and receive messages
- Save configurations
- User/password authentication
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A simple and fast client for Mqtt, the "internet of things protocol" It can be use for test your Broker server , check if the broker it's online, check your topics. You can send messages and read messages from a topic, you can set user, password, client id, topic, port and server ip. You can save a configuration for fast test. The tool it's made for test activities on Mqtt server Broker, no SSL support at now. Don't insert in HOST "tcp://" only host name or ip
Coldlink
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This NFC app, which supports the ISO/IEC 14443 and ISO/IEC 15693 protocols, is used to configure the specification parameters of ColdLink NFC data loggers and to view data. It allows you to set the logger’s configuration and start-up parameters, and to wake the device from low-power mode. In addition, it supports viewing the final PDF or CSV reports.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MqttClient | Coldlink |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Luca Ceci | Henan Plustrace Electronic Technology Co.,Ltd |
In-app purchases
MqttClient
No in-app purchases
Coldlink
No in-app purchases
