INTERVAL app icon

Get INTERVAL

Download Options

Web App

Launch Web App

Works on any modern browser. No installation required.

Instant access to the full signal network

Launch App
Android

Download for Android

Native Android experience with haptic feedback and background operation.

Requires Android 8.0 or later

Download APK

Direct APK install — enable “Install unknown apps” in your device settings

iOS

iOS

Coming soon

Coming soon

Getting Started

Create Your Account

Sign up and become an operator on the INTERVAL network.

Claim Your Callsign

Choose a NATO prefix and 3-digit number as your unique identity.

Start Transmitting

Tap, type, or speak Morse to send signals across the network.

Decode Signals

Decode incoming transmissions and build your skill profile.

System Requirements

Web

Modern browser (Chrome, Firefox, Safari, Edge) with JavaScript enabled

Android

Android 8.0+ (API 26), ~25MB storage

Recommended

Headphones for Morse audio reception