Under the Hood
No internet. No cell towers. Just neighbors finding neighbors.
In a grid-down emergency, your phone still works. Stronghold Radio turns it into a mesh node — finding nearby phones and passing messages hop by hop through the neighborhood without touching the internet.
Your phone finds other Stronghold Radio phones nearby and connects automatically. No Wi-Fi, no cell signal, no accounts. If the Bluetooth radio in your pocket is on, you're already part of the network.
A message from your phone can travel through multiple neighbors' phones to reach someone blocks away. The network builds itself — each new phone that joins extends the range for everyone.
Works in airplane mode. Works when towers are down. Works when the power is out. Built for the moment everything else fails — because that's exactly when you need it most.
Stronghold Radio is in final development. Join the waitlist and we'll notify you the moment it's available — one email, no spam.
Get Notified at Launch