# MQTT Debug & Analyzer Client — IoT Monitor & Protocol Tool

> IoT MQTT traffic debugger, monitor, and analyzer for developers. (iPhone/iPad app by 小玲 王.)

- Source: https://appshunter.io/ios/app/mqtt-debug-and-analyzer-client/id6759897721 (this page in markdown: same URL + `.md`)
- Developer: [小玲 王](https://appshunter.io/developer/1573722736)
- Category: Developer Tools
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 18 MB
- Languages: Korean, Russian, American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Thai
- Released: 2026-03-08
- Data updated: 2026-08-25
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/mqtt-debug-and-analyzer-client/id6759897721/reviews.md

## What is MQTT Debug & Analyzer Client?

MQTT Debug & Analyzer Client is a professional utility designed for IoT developers, network engineers, and smart home enthusiasts. Debug, monitor, and analyze your MQTT traffic with ease.

Key Features
• Advanced Connectivity: Support for TCP, WebSockets, and SSL/TLS (Certificates management included).
• Protocol Support: Fully compatible with MQTT 3.1.1 and the latest MQTT 5.0 features (User Properties, Shared Subscriptions).
• Data Visualization
• Syntax highlighting for JSON, XML, and plain text.
• Hex view for binary data inspection.
• Real-time charts for numerical payloads.
• Intuitive Interface: Chat-style message history makes tracking Publish/Subscribe flows simple.
• Broker Compatibility: Works seamlessly with EMQX, Mosquitto, HiveMQ, AWS IoT, Azure, and Google Cloud IoT.
• Supports dark mode and light mode
• Support for displaying replies in hexadecimal or plain text
• Support sending messages in hexadecimal format

Why choose us?
• Reliable: Keeps background connections alive (where supported) for continuous monitoring.
• Flexible: Manage multiple broker profiles and switch between them instantly.
• Insights: Filter messages by topic or content to find exactly what you are looking for.

Perfect for debugging Home Assistant setups, Tasmota devices, or industrial PLC data.

MQTT Pro Subscriptions

You can subscribe for MQTT Pro Subscriptions to all features and content offered for purchase within the app.

MQTT Pro offers subscriptions. The subscription prices are:

(i) Monthly Subscription ($0.99 / Month)
(ii) Yearly Subscription ($2.99 / Year)

You can subscribe to a Monthly Subscription plan ($0.99 billed once a month) or a Yearly Subscription plan ($2.99 billed once a year).

Payment will be charged to iTunes Account at confirmation of purchase.

Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. The prices are in US dollars. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence.

Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

Our app is functional without purchasing an Auto-Renewable subscription, and you can use all the unlocked content after the subscription expires.

Q: How do I restore the subscriptions on new devices?
A: You can tap the 'Restore' button on the subscription page.

Privacy Policy: https://www.whalesgrowth.top/pp/
Terms of Service: https://www.whalesgrowth.top/tos/

## Key features

- Advanced connectivity (TCP, WebSockets, SSL/TLS)
- MQTT 5.0 protocol support
- Syntax highlighting for JSON, XML, text
- Hex view for binary data
- Real-time charts for numerical payloads
- Chat-style message history
- Broker compatibility with major platforms

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| MQTT Yearly Pro | $4.99 | per year |
| MQTT Month Pro | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| MQTT Lifetime Pro | $5.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/mqtt-debug-and-analyzer-client/id6759897721/reviews.md

### 5/5 — 使用感受还不错，过段付费了

*2026-07-09*

希望能够优化一下 topic 订阅部分，增加一项 topic 别名配置，订阅多条 topic 时容易无法区分

**Developer response:** 感谢提出宝贵建议，下个版本更新 :)

### 2/5 — 好像发不了十六进制

*2026-05-12*

好像发不了十六进制

**Developer response:** 您好，可以升级至 1.6.0 版本，已经支持十六进制发送啦 :)

### 5/5 — 目前为止 感觉最好用的 MQTT 软件

*2026-04-07*

本来支持 MQTT 的软件很少尤其是中文，这款界面美观简洁。发现 问题和作者反馈了 作者立马给解决  🙏作者如此重视 修复更新了还单独跟我说一声

**Developer response:** 感谢使用！你的支持是我持续更新的动力！有您这样优质的用户，是苹果开发者生态的荣幸，就该如此重视 :P

### 2/5 — 用不成

*2026-03-13*

你这个有问题呀 只显示字节不显示内容

**Developer response:** 感谢使用和反馈。软件已经支持字节内容展示了，请升级至 1.6.0 版本。保持联系～

## Frequently asked questions about MQTT Debug & Analyzer Client

### What is MQTT Debug & Analyzer Client?

MQTT Debug & Analyzer Client is a professional utility designed for IoT developers, network engineers, and smart home enthusiasts to debug, monitor, and analyze MQTT traffic with ease.

### What MQTT versions does MQTT Debug & Analyzer Client support?

It is fully compatible with MQTT 3.1.1 and the latest MQTT 5.0 features, including User Properties and Shared Subscriptions.

### Can I visualize my MQTT data with this app?

Yes, the app offers data visualization features such as syntax highlighting for JSON, XML, and plain text, hex view for binary data inspection, and real-time charts for numerical payloads.

### Which IoT platforms does MQTT Debug & Analyzer Client work with?

It works seamlessly with major platforms including EMQX, Mosquitto, HiveMQ, AWS IoT, Azure, and Google Cloud IoT.

### How does MQTT Debug & Analyzer Client handle background connections?

The app is designed to be reliable by keeping background connections alive (where supported) for continuous monitoring, ensuring you don't miss any traffic.

### What are the subscription options for MQTT Debug & Analyzer Client?

You can subscribe to MQTT Pro for all features and content. Options include a monthly subscription for $0.99 or a yearly subscription for $2.99. Subscriptions automatically renew unless turned off 24 hours prior to the end of the current period.

### How do I restore my subscriptions on new devices?

To restore your subscriptions on new devices, simply tap the 'Restore' button on the subscription page within the app.

### Is MQTT Debug & Analyzer Client available on all devices?

Currently, MQTT Debug & Analyzer Client is supported on iPhone and iPod devices. It is rated for ages 4 and up.

## Version history (last 5 releases)

### 1.8.0 — 2026-07-20

- Bug fixes and improvements.

### 1.7.0 — 2026-07-10

- Bug fixes and improvements.

### 1.6.1 — 2026-06-29

- Bug fixes and improvements.

### 1.6.0 — 2026-05-28

- Bug fixes and improvements.

### 1.5.1 — 2026-04-22

- Bug fixes and improvements.

## More apps by 小玲 王

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All apps by 小玲 王: https://appshunter.io/developer/1573722736

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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 2026-08-25.*