Zello is a free walkie-talkie app that allows users to connect with and message each other. But you do need cellular service or internet access to use it.
The free Red Cross Hurricane app helps you stay up to date with any severe weather alerts and track the storm. You can also let others know you're safe, even if the power is out. The app includes a strobe light and alarm.
Snapchat's Snap Map feature can be used to monitor areas hit by hurricanes. Users post photos or videos to their stories, which can be viewed around the world with the location. You can check on your home, learn of power outages and check on friends.
Waze is a traffic and maps app that relies on users providing real time information. It's a good way to check on road closures and traffic back-ups.
GasBuddy recently updated its app to provide information on gas and power availability in areas impacted by hurricanes. The free app allows people to easily search for stations that have fuel and power.
Facebook has activated its Safety Check service in Florida. The feature allows users to notify friends and family that they are safe. Users can also check on their friends and mark them as safe if they can't access Facebook.