Stayconnectedwhentheinternetcan't.
When millions gather in Mina, Arafat and around the Haram, networks fall silent. Hajj Sonar lets phones talk directly to each other — so you can still find your family.
The silence
On the busiest days, the towers go quiet. People shouldn't.
An elderly parent steps away for wudu. A group splits between tents. Messages hang on "sending…" while the crowd moves on. It's the most important journey of a lifetime — and the moment connection matters most.
How it works
Three steps. No towers.
Turn on Bluetooth
That's the only signal you need. No SIM, no Wi-Fi.
Open Hajj Sonar
Your phone quietly joins a local mesh with every nearby device.
Message & find
Text, locate and gather your group — even with zero internet.
Messages hop, phone to phone.
Out of direct range? Your message relays through other pilgrims' devices — encrypted the whole way — until it reaches the person you're looking for.
Features
A quiet companion for the loudest days.
Offline-first mesh
Bluetooth mesh messaging that works with zero bars.
Sense who's nearby
See your people before you see them.
End-to-end encrypted
Only the recipient can read it.
No number, no account
Your cryptographic key is your identity.
Hajj & Umrah
Designed around the rhythm of the rites.
Battery-conscious
Lightweight enough for long days in Arafat.
Your words stay between you.
Messages travel only between devices on the mesh. Nothing is stored in the cloud, because there is no cloud.
No servers
No tracking
No phone numbers
No central authority
Powered by open source
Built on Sonar mesh technology.
Built on the same foundation that powers decentralized, censorship-resistant communication. Every line is open for anyone to inspect.
Bring it on your journey.
Free. Available for iOS and Android.
Questions, answered.
Yes. Hajj Sonar uses only Bluetooth between nearby phones — no cellular data or Wi-Fi required.
Direct Bluetooth range is typically tens of meters. Beyond that, messages hop through other phones running the app, extending reach across the crowd.
Yes, completely free.
No. There are no servers, no accounts and no phone numbers. Your messages never leave the mesh.
It's optimized for pilgrimage use — lightweight scanning designed to last through long days.