Umbrella - a free open source app to help people learn about digital and physical security. From how to use Signal for safe communication to how to deal with a kidnapping. Multiple languages and widely used by journalists, activists, aid workers, traveling business people and those any one living in high risk countries.
More info: https://www.secfirst.org
iOS: https://apps.apple.com/us/app/umbrella-security/id1453715310
Android: https://play.google.com/store/apps/details?id=org.secfirst.u...
Web (Beta): https://umbrella.secfirst.org