MQTTapp - Access MQTT Broker

In-app purchases
5K+
Downloads
Content rating
PEGI 3
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About this app

MQTTapp: An Intuitive MQTT Client

MQTTapp is designed to help users connect to MQTT brokers and use MQTT efficiently. Whether for professional or personal use, it provides a set of practical features to simplify your MQTT experience.

Key Features:

- Hierarchical Topic Display -
Organize topics and messages in a clear hierarchical structure.
Expand topics to view subtopics and recently received messages.

- Detailed Message View -
View current and previous messages with formatted JSON data for improved readability.

- Account Management -
Add and manage accounts seamlessly. Start or stop connections using simple controls.

- Demo Account -
Test the app without a broker.
This account allows you to explore features available in the Pro version and is automatically removed once you create a regular account.

- TCP and WebSocket connections -
Supports both TCP and WebSocket connections with optional base path to enable flexible connection to MQTT brokers.

- Secure connections -
Choose between SSL-encrypted or unencrypted connections, with the option to disable SSL validation.

- Random or custom client IDs -
Use random IDs to avoid conflicts or specify them as needed.

- Message filtering -
Filter messages or receive system messages by using topic filter $SYS/#.

- Scalable User Interface -
Adjust the app's display size from 50% to 200% for better usability.

- Search Function -
Find terms quickly with the integrated search bar.

- Display server certificates for SSL accounts -

- Save and share messages as JSON files

Pro Version Features:

The Pro version includes additional features for advanced use:
- Publish and delete messages
- Organize topics across multiple accounts in favorites, with current values and charts in favorites
- Filter topics and messages when searching
- Split view in overview and favorites
- Visualize numerical data as charts
- Receive messages when the app is running in the background
- Use custom certificates to validate SSL connections
- Import messages from JSON files

MQTTapp offers a range of essential features for managing MQTT connections and messages. Upgrade to the Pro version to unlock more advanced functionalities tailored to your needs.
Updated on
Oct 30, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

Version 1.5.6 (128)
Stability improvement

App support

About the developer
Bertram Michael Vielsack
bertram@vielsack.com
Wolfsheck 42 69254 Malsch Germany
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