No Internet • No SIM • No Cellular

Offline Emergency Messaging App
Powered only by Bluetooth. Resilient. Secure. Disaster-Proof.

Crisis Connect operates on a disaster-proof 4-layer Bluetooth protocol stack, built for rescuers who cannot rely on collapsed infrastructure.

For first responders & civilians in crisis situations

100% OfflineE2E EncryptedBluetooth Only

No Internet? No Problem.

Pure Bluetooth infrastructure. No Wi-Fi Direct, No Hotspots, No Tethering. Just direct device-to-device communication.

Direct Messaging

Connect directly to others nearby. Send messages and make voice calls without internet or cellular signal.

Voice Call
Text
1:1

Emergency Tools

Built-in survival suite: Compass, Metal Detector, Signal Finder, and Offline Maps for navigation without internet.

Compass
Metal Detector
Signal

Survival Guide

Access critical first aid instructions, shelter building techniques, and emergency protocols stored locally on your device.

Coordinates
Offline
Share
How It Works

Three Steps to Connect

Scan a QR code to save family and trusted people as Emergency Contacts — so you can reach them later, even with no internet.

01

Scan & Save

Scan a QR code to add family and trusted people as Emergency Contacts before anything happens.

02

Direct Offline Connection

When you need help, connect directly to nearby saved contacts — no internet, no SIM, no cellular network.

03

Private Messaging

Send messages and location updates with end-to-end encryption to keep your communication private.

Powered by
DiscoveryGAP/GATT
TransportRFCOMM
SecurityAES-GCM

Operating continuously on low-energy spectrum

Your Safety Companion

Always Connected, Always Safe

Crisis Connect turns your phone into a vital survival tool. Chat without internet, access emergency tools, and view offline guides when you need them most.

1

Offline Messaging

Send secure text and voice messages directly to nearby devices using high-fidelity RFCOMM channels.

2

Disaster Tools

Essential survival utilities including Metal Detector, Signal Finder, and Offline Maps in one integrated suite.

3

Survival Guide

Access critical first aid, shelter building, and survival techniques stored locally on your device.

App Logo
Crisis Connect
AM

Alex Miller

17:00

Position confirmed.

SJ

Sarah Jenkins (Field Team)

16:45

Stay calm. We are close.

Real-World Scenarios

Crisis Connect saves lives when traditional networks fail.

Search and rescue team working in earthquake rubble

Under the Rubble

Phone broadcasts BLE signals even if the user is immobilized, aiding rescue teams.

Collapsed infrastructure after disaster

Infrastructure Collapse

Communication persists for AFAD & UMKE teams when cell towers fail completely.

Remote mountain wilderness area

Remote & Wild

Essential for campers, mountaineers, and units in areas without coverage.

Frequently Asked Questions

Common questions about Crisis Connect and how it works.

Range varies by device and environment—approximately 100 meters in open areas, potentially less through walls or rubble. Bluetooth is designed for short-range proximity communication.

Under-the-Rubble Connection

Stay connected even under rubble. Use RFCOMM to communicate directly with saved contacts (family) nearby via P2P Bluetooth. Broadcast SOS signals for location tracking and two-way communication with field rescue teams.

Trapped users connect peer-to-peer via Bluetooth and broadcast SOS signals to rescue teams above for triangulation.
Above Ground

Field Team

Rescue Unit

−45dBm Receiving SOS

Field Medic

First Responder

−52dBm Receiving SOS
Collapsed Structure
Under Rubble

YOU

Trapped User

Broadcasting SOS
P2P LINKED
Direct Bluetooth Connection

FAMILY

Saved Contact

Under Rubble

Trapped users connect peer-to-peer via Bluetooth and broadcast SOS signals to rescue teams above for triangulation.

Family & Saved Contacts

Communicate directly with your pre-saved family members and close contacts via P2P Bluetooth. Send secure messages and voice transmissions through the RFCOMM protocol.

P2P ConnectionPre-Saved ContactsRFCOMM

SOS & Field Teams

Broadcast an SOS signal to alert rescue teams of your location. Once field teams detect you, establish two-way communication to relay your situation and needs.

SOS BroadcastLocation TrackingTwo-Way Comm
Both methods are fully Bluetooth-based
Ready when you are

We are connecting liveswhen it matters most.

Join the network that saves lives. Whether you are an organization or an individual, be part of the resilient future.