MQTee
Works Works.
Free
About
A native MQTT 5 client for iOS devices that offers a visual topic tree browser, full MQTT 5.0 support, and iCloud sync for seamless connection management. It allows for multi-tab publishing with syntax highlighting and provides a real-time event log for debugging.
✓Native MQTT 5 client
✓Visual topic tree browser
✓Full MQTT 5.0 support
✓iCloud sync for connections
✓Multi-tab publishing with syntax highlighting
✓Real-time event log
✓Apple Shortcuts & Siri integration
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What's New in MQTee
1.1
October 22, 2026
• Fixed a crash that could happen after the app spent about an hour reconnecting to an unreachable broker. • Disconnecting no longer makes the broker publish your Last Will message. • TLS connections now trust the certificates your system trusts, including ones installed by you or your organization. • More reliable publishing and subscribing, including large subscription lists. • Shortcuts now wait for the broker to confirm a publish and no longer disconnect the session open in the app. • Message lists keep updating and show how many new messages arrived when the history limit is reached. • Formatting JSON keeps large numbers exactly as typed. • Topics with empty levels, such as a//b, now appear correctly in the topic tree. • Clear errors for invalid ports, keep alive, and session expiry values in the connection editor and when importing. • Layout fixes on iPhone and iPad, VoiceOver labels for icon buttons, and many smaller fixes.
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FAQ
What is MQTee?
MQTee is a native MQTT 5 client for iPhone and iPad, built with SwiftUI and Rust. It provides advanced features for managing MQTT connections and messages without lag or web views.
Does MQTee support MQTT 5.0 features?
Yes, MQTee offers full support for MQTT 5.0, including shared subscriptions, user properties, no-local, retain handling, session expiry, and more. It also supports MQTT 3.1.1.
How does MQTee handle connection data?
Your MQTT connections and credentials are automatically synced across your iPhone and iPad via iCloud. Credentials are securely stored in iCloud Keychain, ensuring ease of use and security.
Can I publish messages with MQTee?
Yes, MQTee allows for multi-tab publishing per connection. It features JSON syntax highlighting and automatic payload detection for various formats like JSON, XML, hex, and plaintext.
Is MQTee suitable for debugging MQTT workflows?
MQTee includes a structured, real-time event log that can be filtered by level, category, and direction. This feature is ideal for debugging MQTT workflows as they happen.
Can I automate MQTee with other apps?
Yes, MQTee integrates with Apple Shortcuts and Siri. You can automate your MQTT workflows by publishing messages and reading retained values from any app or Siri command.
What are the pricing and limitations of MQTee?
MQTee is completely free to use with no limits, paywalls, or feature gating. All features are available to all users without any cost.
Does MQTee have ads?
No, MQTee does not contain advertisements. It is a free application with no in-app purchases or ads, providing an uninterrupted user experience.
