MQTT Spy vs Device Information Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MQTT Spy
This application allows for testing the pub/sub MQTT protocol. Connect to an MQTT broker to send and receive messages, control IoT devices, and monitor sensors. It offers features for saving broker lists, custom publishing buttons, and data monitoring in ASCII or HEX.
- Save broker list
- Custom publish buttons
- Monitor data as ASCII or HEX
- Auto-send commands at intervals
- Keep screen on/off option
- Send log files
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INTRODUCTION: - MQTT Spy is used for testing pub/sub protocol with MQTT - Simply create a MQTT connection with broker and test MQTT messaging - With this app, You can control any MQTT enabled IoT devices and monitor sensors with pub/sub protocol. FEATURES: - Save broker list - Separate panels for subscribe and publish data - Custom your own buttons for frequent publishing of same data. - Monitoring receiving data as ASCII or HEX. - Publish Data as ASCII or HEX. - Auto send commands at timed interval - Selection for \r \n at the end of sending data. - Send Log file of Subscribed and Published data. - Keep Screen on/off option.
Device Information Tool
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A fast, accurate, and privacy-first utility that shows everything you want to know about your Apple devices. This tool has the most complete information available. By downloading, you are supporting a small independent open source developer who makes this information freely available to everyone and keeps it updatable by everyone. What you get: • Detailed hardware and software information including model, chip, storage, memory, introduction date, and minimum and maximum OS versions. • Battery information showing level and charge status. • Thermal indicator to recognize device temperature. • Orientation and display data showing how the system reports screen state. • Idle timer control to prevent the screen from dimming or locking when needed. • Device capabilities and sensors such as biometrics, LIDAR, ECG, Fall Detection, Oxygen Sensor, and more. • Direct support and reference links to Apple documentation based on your exact device. Why you’ll love it: • Privacy-first design with no data collection. All device information stays on your device. • Lightweight and fast with minimal battery or resource usage. • Continuously updated with new Apple devices, sensors, and operating system support. • Ideal for developers, IT support, and anyone who wants to know the exact capabilities of their Apple devices. This is a tool for exposing the information in the open source Kudit Device framework. Feel free to contribute to this project at http://github.com/kudit/Device If you have any suggestions or feedback, please reach out to us at support+device@kudit.com! https://www.kudit.com/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Device Information Tool at none against MQTT Spy's 1. Device Information Tool also leads on ads (none vs shown) and update cadence (monthly vs every 4 months). MQTT Spy's advantage is iOS requirement (10.0 vs 15.0). On price 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
MQTT Spy costs $0.99 and Device Information Tool $0.99 up front. MQTT Spy sells 1 one-off in-app purchase. Device Information Tool asks for nothing beyond the download.
MQTT Spy ships an update every 4 months, Device Information Tool monthly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | MQTT Spy | Device Information Tool |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | #47 — better |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 26 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Gopi Gadhiya | Kudit LLC |
In-app purchases
MQTT Spy
- Remove Ads$2.99
Device Information Tool
No in-app purchases
Questions
Is MQTT Spy free?
Is Device Information Tool free?
Do MQTT Spy or Device Information Tool have ads?
Which is updated more often, MQTT Spy or Device Information Tool?
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