No app. No install. No account. Opens in any browser. Works offline forever.
Wren is a 12KB file. You open it in any browser. You type messages. You share the file to the person next to you via AirDrop, Bluetooth, or USB. That person opens it and has every message you wrote. They add theirs. They share it. The file IS the network.
No app store. No phone number. No account. No internet. No server. Nothing to install. Nothing on your phone that wouldn't already be there. Close the browser tab and the evidence is gone.
Built for the more than 90 million people in Iran who have been cut off from the world since January 8, 2026 — and for anyone, anywhere, who has been separated from the people they love.
Someone shares you a file called wren.html. Open it in any browser. That's it. You're on the mesh.
Six channels: general, alert, water, medical, shelter, family. Start with ! for emergencies.
Hit share. Every message you've typed bakes into the copy. The next person gets everything.
Each hop adds more messages. By the 10th share, the file carries a complete picture of a city.
Wren Zero is sneakernet — messages travel at the speed of sharing. If you can install an app (from someone who already has it, via Bluetooth APK transfer), these add real-time Bluetooth mesh on top.
These require installation. If you have no app store access, they can be shared Android-to-Android via Bluetooth APK transfer. Wren Zero requires nothing — just a browser.
A $7 circuit board (Meshtastic on a Heltec V3) becomes a 15km radio relay. A dozen cover a city. Solar powered. Runs forever. This is how neighborhoods become networks — and networks become a voice that cannot be shut off.
We know you are in a blackout. We know you may not see this page today, or tomorrow, or for weeks. But we also know this: you will find a way. You always have.
When you do get through — even for a moment — save this page. Open Wren Zero. Share it to every phone you can reach. Each phone that carries it makes the mesh stronger for everyone behind you.
Your words are worth carrying. Wren carries the voice.
Wren is built by Lesson of the Day, PBC — a California Public Benefit Corporation with a perpetual mission. We cannot be acquired. We cannot be shut down. We exist to serve. All code is GPL3. These designs do not belong to us. They belong to you.