
Plynx - DIY IoT
Make DIY IoT Great Again
Only for iPhone
Free · Designed for iPhone
iPhone
Control Arduino, ESP8266, ESP32, and Raspberry Pi from your iPhone. Build custom dashboards with drag-and-drop widgets. Open source. No cloud required.
Plynx is an iOS client for the Blynk Legacy server, designed for makers and hobbyists who want to control their IoT projects from iPhone.
Build custom dashboards with 20+ widgets - buttons, sliders, gauges, RGB controllers, joysticks, and real-time graphs. Everything runs on your own server, giving you complete control over your data.
FEATURES
• Dashboard Builder
Drag-and-drop interface to create custom control panels. Resize widgets, organize them on tabs, customize colors and labels.
• 20+ Widgets
- Controllers: Button, Slider, Joystick, zeRGBa (RGB picker), Step control
- Displays: Gauge, LCD, LED, Value display, SuperChart (real-time graphs)
- Advanced: Terminal, Timer, Menu
• Hardware Support
Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, and any hardware that runs Blynk Legacy libraries.
• Real-Time Control
WebSocket-based communication for instant response. See sensor values update live, control outputs with zero lag.
• Self-Hosted or Cloud
Connect to your own Blynx server (recommended) or use the public cloud instance at plynx.cc. Your choice, your data.
• Open Source
PlynxConnector library is open source on GitHub. Transparent protocol implementation, no hidden telemetry.
HOW IT WORKS
1. Set up a Blynk Legacy server (instructions on GitHub: blynkkk/blynk-server)
2. Download Plynx on your iPhone
3. Connect to your server (enter IP and port)
4. Create a project and add widgets
5. Flash your hardware with Blynk library code
6. Control and monitor your devices
PERFECT FOR
- Home automation enthusiasts
- Arduino/ESP32 developers
- Raspberry Pi projects
- DIY robotics
- Sensor monitoring systems
- Educational IoT projects
THE BACKSTORY
Started as a personal project to revive Blynk Legacy after the official app was discontinued. The legacy server works perfectly, but needed a modern iOS client. Built from scratch using Swift and reverse-engineered protocol specs.
No ads. No tracking. No subscriptions. Just a tool for makers.
TECHNICAL NOTES
• Requires iOS 18.0+
• Works with Blynk Legacy server only (not compatible with Blynk 2.0)
• Supports SSL/TLS connections
• Local network access for LAN servers
• Push notifications for hardware events (optional)
Open source connector: github.com/NickP005/PlynxConnector
Legacy server: github.com/blynkkk/blynk-server
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
The developer, Niccolo Pagano, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Niccolo Pagano
- Size
- 4.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- Languages
- English and Italian
- Age Rating
4+
- 4+
- Copyright
- © 2025 Niccolo Pagano