Preparedness guidance, technical evidence, and field notes.
A single place to understand how Crisis Connect is prepared, where it helps, and where its limits are. Source-backed guidance instead of filler; verifiable publications instead of unsupported claims.
Our reference guides
Durable references for preparing the app before a crisis, reviewing the trust model, and verifying technical decisions.
Fifteen minutes before a disaster: build your family communication plan
Choose a contact, define two meeting places, and run one short communication test without internet access.
Why offline-first communication is more than ‘messaging without internet’
Explore how online, local, and secure layers work together—and where Bluetooth and operating systems set limits.
Get ready in five minutes
Grant the right permissions, add trusted contacts, and send one test message with internet access disabled.
Mobile technical architecture
Bluetooth transport paths, end-to-end encryption, trust bootstrap, and controlled expansion layers.
Trust Center
Data practices, security posture, open-source evidence, and direct verification links.
Offline communication in earthquake response
See the gap nearby communication can fill when networks fail, and the limits that still apply.
Our publishing standard
Disaster communication depends on trust. Every new long-form resource will make the following information visible.
- Author, publication date, and last-updated date
- Primary sources and verifiable links
- A clear distinction between product capability and real-world limits
- A clear warning that Crisis Connect does not replace official emergency services