A+blood group
Urgent todayToday · 9:00 PM
Riyadh Central Hospital
⌖ Al Sulaymaniyah · 4.2 km
1/2
The hospital blood bank asked the family to bring eligible donors before tonight.
✓
Transparency statusRequest document supplied
Interactive prototype · Fictional data · Riyadh
✦Community response, hospital control
Turn an urgent blood appeal into coordinated action.
Nidaa helps families reach willing nearby donors without exposing patient details or making medical decisions.
24h auto-expiry0 patient names shown100% hospital screening
Riyadh response radius12 opt-in donors nearby
LiveA+A+A+
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Hospital
appeal origin
appeal origin
Only relevant donors are alertedExact donor locations stay private
Community board
Active community appeals
Fictional requests for demonstration only
O−blood group
Tomorrow · 11:00 AM
North Riyadh Medical Center
⌖ Al Nakheel · 7.8 km
2/3
Three willing donors requested. Final eligibility is determined only at the hospital.
✓
Transparency statusRequester phone verified
AB+blood group
Tomorrow · 4:00 PM
Al Noor Community Hospital
⌖ Al Malaz · 9.1 km
0/1
Appeal expires automatically after the hospital-requested time.
✓
Transparency statusAwaiting document review
Safety by design
Designed for trust from the first alert
Minimum personal data
Patient names and donor locations are never shown in a public appeal.
Clear verification
Every appeal shows what was checked—and what was not.
Automatic closure
Expired or fulfilled requests stop notifying donors.