Sec MQTT Pub vs MQTTCP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sec MQTT Pub
This app provides a secure MQTT client for communicating with IoT devices using X.509 authentication and AES-128 encryption. It allows for customized messages and topics, offering a robust solution for secure IoT project communication.
- X.509 authentication
- Root CA authentication support
- AES-128 encryption
- Face ID / Touch ID support
- Customizable buttons for messages and topics
- Open-source project
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TLS IoT is an open-source end-to-end secured MQTTs client to communicate with your IoT device securely. The client supports the following features: • Use only X.509 to authenticate and secure the communication • Support Root CA authentication • AES-128 encryption to prevent the middle-man attack • Support Face ID / Touch ID You can define up to 4 buttons with customized messages and topics. TLS IoT tool is a secured and easy-to-use app. If you are looking for a highly secured MQTT tool for your IoT project, this app is for you. For more information about this project, including the source code and demos, please visit our project site: https://github.com/tracmo/open-tls-iot-client
MQTTCP
This app facilitates communication with MQTT, TCP, and UDP services. It offers features for publishing and subscribing to messages, connecting to TCP servers, and managing UDP listeners, all within a clean interface.
- MQTT publish/subscribe
- TCP client/server functionality
- UDP listener
- Username/password authentication
- Message history tracking
- Hexadecimal data visualization
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[Main Features] 1. MQTT * Clean and intuitive user interface * Supports publishing and subscribing to messages, suitable for communication between IoT devices. * Username/password authentication support * Automatic reconnection capability * Real-time subscription status display * Message publication history record * Supports viewing topic information in JSON tree format. 2. TCP CLIENT * Clean and intuitive user interface * Based on Apple's native Network framework, providing stable performance * Connect to any TCP server via IP address and port * Support for both text and hexadecimal data transmission modes * Message history tracking with timestamp markers * Hexadecimal data visualization with graphical interface 3. TCP SERVER * Clean and intuitive user interface * Based on Apple's native Network framework, providing stable performance * One-click start and stop operation * Real-time display of data from all connected clients * Ability to manage multiple client connections simultaneously * Support for both text and hexadecimal data transmission formats 4. UDP * Clean and intuitive user interface * Based on Apple's native Network framework, providing stable performance * One-click start and stop listening * Highly configurable, capable of adapting to various application scenarios * Supports automatic resource cleanup after disconnection * Efficient memory management, preventing data leaks ------------------------------ Welcome to MQTTCP! This application aims to provide a convenient way to interact with MQTT、TCP、UDP services. By downloading and using this application, you agree to comply with the End User License Agreement (EULA): Apple Standard EULA(https://www.apple.com/legal/internet-services/itunes/dev/stdeula/). Payment will be charged to your iTunes account at confirmation of purchase. Subscriptions will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscriptions and auto-renewal in your account settings.
Screenshots
Verdict
The clearest difference is in-app purchases: Sec MQTT Pub at none against MQTTCP's 3. Sec MQTT Pub also leads on iOS requirement (14.0 vs 18.2). MQTTCP's advantage is update cadence (every 7 months vs every 28 months). On price, rating, ratings volume and ads 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. MQTTCP sells 3 in-app purchases, starting at $0.99 per month. Sec MQTT Pub asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Sec MQTT Pub against 5.0 for MQTTCP. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Sec MQTT Pub ships an update every 28 months, MQTTCP every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Sec MQTT Pub | MQTTCP |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 28 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Care Active Corp. | xiao zhang |
Customer experience
Sec MQTT Pub
MQTTCP
In-app purchases
Sec MQTT Pub
No in-app purchases
MQTTCP
- Monthly3 Days trial$0.991 Month
- Annual3 Days trial$1.991 Year
- One-time Purchase$2.99









