# JCH MQTT Monitor — Your MQTT tool

> Your MQTT tool (iPhone/iPad app by JOACHIM CHRISTOF HUBEN.)

- Source: https://appshunter.io/ios/app/jch-mqtt-monitor/id6751897749 (this page in markdown: same URL + `.md`)
- Developer: [JOACHIM CHRISTOF HUBEN](https://appshunter.io/developer/1837435756)
- Category: Developer Tools, Productivity
- Price: $1.99 (on sale, was $2.99)
- Age rating: 4+
- Requires: iOS 16.6 · 10 MB
- Released: 2025-09-05
- Data updated: 2026-09-09
- User reviews in markdown: https://appshunter.io/ios/app/jch-mqtt-monitor/id6751897749/reviews.md

## What is JCH MQTT Monitor?

JCH MQTT Monitor  is your go‑to tool for developing, testing, and operating IoT/IIoT systems — with native Sparkplug B and MQTT 5 support. Create connections, live‑subscribe to topics, view message details with syntax highlighting, publish messages, export your tracked log and reuse your favorites.

Features:
Fast navigation with saved favorites for connections, topics and different types of messages.
MQTT 3.1.1 & 5: QoS 0–2, retain, content type, user properties, response topic, correlation data.
Sparkplug B: Send NBIRTH/NDATA/NDEATH/DBIRTH/DDATA/DDEATH, pick metric types.
Publish: Fast sending, JSON validation, reusable favorites with placeholders.
Visualization: view and compare values in custom diagrams 
Subscribe: Live view, wildcards, filters, history.
Connections: Websocket, TLS/SSL, username/password.
MQTTTraffic Analyser: Connection stability, message frequency & size, QoS / retain usage, topic structure.
UX: Clean, fast, optimized for testing and debugging.
Perfect for device bring‑up, telemetry testing, backend integration, and Sparkplug B PoCs.


## Version history (last 5 releases)

### 3.3.0 — 2026-08-24

- Improved inline editor and CodeAssist.

### 3.2.0 — 2026-01-12

- improved payload editing in CodeAssist

### 3.1.0 — 2026-01-06

- Introducing the first version of "CodeAssist" for easier payload generation.

### 3.0.1 — 2026-01-03

- small visual improvements.

### 3.0.0 — 2025-12-26

- MQTT5 connection settings extended.
- MQTT5 additional flow Control settings. 
- MQTT5 publishing option settings. 
- Extended color picker implemented.

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## More apps by JOACHIM CHRISTOF HUBEN

- [MyDailyLoop: Habit Tracker](https://appshunter.io/ios/app/mydailyloop-habit-tracker/id6753007124)
- [ZugFunker](https://appshunter.io/ios/app/zugfunker/id6756926194)
- [JCH SSH Client](https://appshunter.io/ios/app/jch-ssh-client/id6757359927)
- [RecipeStash: Your Recipe Box](https://appshunter.io/ios/app/recipestash-your-recipe-box/id6758549254)
- [JCH Notes](https://appshunter.io/ios/app/jch-notes/id6759219643)

All apps by JOACHIM CHRISTOF HUBEN: https://appshunter.io/developer/1837435756

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*