I bet that, like me, lots of your friends are talking about Zello. It's taken the country by storm (literally) and hit #1 on the iTunes downloads chart.
Zello is a smartphone app that turns your phone into a "Walkie-Talkie" and allows you to communicate via voice with friends and family that have the app, or join public chats. Think of it as a cross between a Walkie-Talkie and a CB or Ham Radio.
Here's the caveat: It requires a cellular data or WiFi connect in order to work.
Just like Facetime or Skype and all the other apps that let you voice or video chat, if you aren't connected to the internet, Zello doesn't work.
Photo: Zello Inc / Google Play