Similar to Filedrop or AirDrop by Apple, the Viggo app allows you to throw content into the air in order to share with others in the vicinity. The social networking platform lets you share content including photos, contact information, files and more using Bluetooth technology.
Compatible with iOS devices, the simplistic app is extremely easy to use. You just open the app, throw content and it will become available to all those within Bluetooth range (as long as they also have the Viggo app downloaded on their smartphones). There is also an ephemeral component -- turn off the app or disable sharing and the content will not be available anymore. For added security, you can protect individual items as well as collections with a password.