Real-time video streaming with ultra-low latency. No cloud, no delay, no complexity.
Relay turns your iPhone or iPad into a video streaming system for local networks. Stream video between Relay devices with ultra-low latency - perfect for practice mirrors, sports training, and real-time visual feedback.
FEATURES
Ultra-Low Latency
Hardware-accelerated H.264 encoding delivers sub-100ms end-to-end latency on quality local networks. See yourself in real-time, not a second later.
Local Network Only
Everything stays on your WiFi network. No cloud services, no internet required, no monthly fees. Your video never leaves your local network.
Dual Mode Interface
Switch between Camera mode (stream your device's camera) and Monitor mode (receive video from other Relay devices). Simple, focused interface optimized for iPhone and iPad.
Zero Configuration
Automatic device discovery via Bonjour. No IP addresses to remember, no complex network setup. Just select a device and start streaming.
Video-Only by Design
No audio means no echo, no sync drift, and predictable performance. Perfect for scenarios where you just need to see yourself in real-time.
Camera Flexibility
Use any camera connected to your iPhone or iPad - built-in front or back cameras. Stream to any other device running Relay on your network.
PERFECT FOR
• Dance studios and practice mirrors
• Sports training and form analysis
• Camera positioning and framing checks
• Presentation monitoring and confidence displays
• Video feedback for teaching and coaching
• Remote camera preview before recording
• Turn an iPad into a wireless monitor
TECHNICAL DETAILS
• Hardware-accelerated H.264 encoding/decoding via VideoToolbox
• UDP/RTP streaming protocol (RFC 3984)
• Automatic device discovery via mDNS/Bonjour
• 1080p video at 30 fps
• Portrait and landscape orientation support
• Front and back camera support
REQUIREMENTS
• iOS 17.0 or later / iPadOS 17.0 or later
• Strong WiFi connection (5GHz recommended for optimal performance)
• Camera permission for Camera mode
• Private WiFi network (not public/isolated networks)
• Relay app on both sending and receiving devices
PRIVACY
Relay doesn't collect, store, or transmit any data outside your local network. No analytics, no tracking, no cloud services, no servers. Everything is peer-to-peer on your local WiFi.
SUPPORT
Visit our website for documentation, FAQs, and support.
