Also, for tracking team/ family, check these out below. It's good for situations like hunting, SHTF, hiking, offroading, skydiving, kayaking, etc. There's also a PC based program. You can track in real time, send rally points, map POIs, plot routes, send chat messages, videos and more.
iTAK
The Team Awareness Kit (TAK) (known as the Tactical Assault Kit in the Department of Defense) application: iTAK is a collaborative geospatial application to see your teams’ locations, sensor information, videos, chat, and more in real-time. iTAK supports Department of Defense (DoD) and commerci…
apps.apple.com
ATAK-CIV (Android Team Awarene - Apps on Google Play
An extensible, geospatial and situational awareness platform.
play.google.com
WinTAK is Publicly Available - CivTAK / ATAK
ATAK / CivTAK - Android Team Awareness Kit Portal. News, Licensing and Support for TAK Tools. Chat, Discussions and Downloads.
www.civtak.org