iPTT - Walkie Talkie

Do you use tradtional walkie-talkie? If yes, this will be a good app for you and most importantly, it is not restricted by distance because it is using data plan.

What actually so good about this App?

Push-to-talk is probably the most effective way for a group to communicate in realtime, and iPTT delivers just that (and more). iPTT is a simple but powerful push-to-talk app designed for the iPhone and iPod Touch . Whether you're interested to socialize, discuss special interests or as productivity tool for your teams, iPTT has been built with your needs in mind. And unlike traditional push-to-talk networks iPTT's network spans the entire globe and joining is currently free!