Sec MQTT Pub vs Dukto Link
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
Dukto Link
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Send files to any computer on your Wi-Fi. No cloud, no account, no cable. Dukto Link moves files between your iPhone and any Mac, Windows PC, or Linux machine on the same network directly, device to device. Nothing is uploaded, nothing is stored on a server, and nothing leaves your network. Open the app and nearby devices appear automatically. Tap one to send. What you can send • Files and entire folders • Photos and videos from your library • Text snippets and clipboard contents • Anything from other apps, via the share sheet Built for real use • Cross-platform - works with Dukto on Windows, macOS and Linux • Choose where received files/media land • Recents keeps a history you can reopen or resend Private by design Transfers are peer-to-peer over your local network. There are no accounts, no analytics, and no servers. Dukto Link collects nothing. Free, with every feature included. An independent iOS client for the Dukto protocol, originally created by Emanuele Colombo.
Screenshots
Verdict
The clearest difference is update cadence: Dukto Link at every 3 weeks against Sec MQTT Pub's every 28 months. Sec MQTT Pub's advantage is iOS requirement (14.0 vs 16.2). 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.
Sec MQTT Pub ships an update every 28 months, Dukto Link every 3 weeks. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.
| Parameter | Sec MQTT Pub | Dukto Link |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 28 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Care Active Corp. | Gorjan Shukov |
In-app purchases
Sec MQTT Pub
No in-app purchases
Dukto Link
No in-app purchases
