MQTT Loupe vs MQTT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MQTT Loupe
Inspect MQTT messages exchanged on a broker with this intuitive utility. Connect to brokers, subscribe to topics, and view message details. Features include JSON highlighting, hex viewer, and secure connection options.
- Inspect MQTT messages
- Connect to any MQTT broker
- Subscribe to topics
- Full-text search across topics
- JSON highlighting
- Hex viewer for binary payloads
- Secure connection options
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MQTT Loupe is an intuitive utility to inspect MQTT messages exchanged on an MQTT broker. Connect to any public or local MQTT broker, subscribe to topics and view details of messages being transmitted. Don't remember that one message or topic? Fire up the search to find it instantly using full-text search through all topics, and results updating live with new hits appearing as they arrive. With built-in JSON highlighting, this app is perfect for monitoring Zigbee2Mqtt. And if you need to work with binary message payloads, the built-in hex viewer has you covered. Got frequently used topics that are further down the hierarchy? Make them favorites for easy and instant access. Concerned about security? Let the server's certificate be validated before connecting; you don't have to allow insecure connections based on untrusted certificates. Need more? Provide a client certificate to authenticate yourself against the server. All features in a nutshell: - clean and simple interface - hierarchical topic view - sidebar with history of recently opened topics - powerful full-text search capabilities across all topics and for a single message - search results are automatically updated when new messages arrive - extended message details, with proper formatting and syntax highlighting of JSON messages - support for binary message payloads, displayed as either ISO Latin-1 or in a hex view - easily copy any topic or message value - authentication with username/password or client certificates - connect over MQTT or WebSocket protocol - support for MQTT 3.1.1 and MQTT 5 - support for SSL/TLS - support for the Server Name Indication (SNI) TLS extension - support for self-signed certificates - full server certificate validation - manage and connect multiple brokers at once - full support for quality of service
MQTT
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The app has a control range with the ability to control between zero and five lights and doors, depending on the use case. By means of a red-green indicator, the user is shown the connection status of the server. In the settings area of the app the server connection details can be entered. Depending on the use case, the controls for the lights or doors can be switched on and off. For the individual lights and doors, the corresponding theme as well as the message can be set. In addition, further settings for the transmission can be selected.
Screenshots
Verdict
The clearest difference is update cadence: MQTT Loupe at every 3 weeks against MQTT's every 11 months. MQTT Loupe also leads on iOS requirement (13.0 vs 15.0). 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.
MQTT Loupe ships an update every 3 weeks, MQTT every 11 months. Both last shipped on November 3, 2026.
| Parameter | MQTT Loupe | MQTT |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jakob Bieling | Marco Gasser |
In-app purchases
MQTT Loupe
No in-app purchases
MQTT
No in-app purchases






