Observed arrival · 2026-10-22
Hajj Sonar: messaging through the crowd
A free app presented as a way for Hajj and Umrah pilgrims to message and find one another over Bluetooth mesh, without internet, phone numbers, or accounts.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Hajj and Umrah pilgrims keeping track of their group
- Worth noticing
- The page says messages can relay through other phones, extending reach beyond Bluetooth’s direct range, which it describes as typically tens of meters.
Field notes
The page frames its use case around crowded pilgrimage settings, naming Mina, Arafat, and the Haram, and gives examples of a group splitting between tents or someone stepping away. Its sample interface shows a nearby contact at 40 meters and a suggested meeting point at gate 79. The site also links to a GitHub project and offers English and Arabic; the visible material does not verify real-world range or performance.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue