Radon is a new app, that makes pretty good use of Google's Nearby API and let's you share links also using ultrasound.
How do you share links? Via Whatsapp, SMS, Facebook? You don't have to do this anymore, if you only want to send a link to people nearby.
The app, from the developer of Metal â€“ a pretty cool Facebook wrapper app, uses the Nearby API. The Nearby API automatically checks if there are devices nearby and it also checks how to connect to them. That can be via a personal hotspot, bluetooth â€“ or ultrasound. And you don't have to configure anything yourself â€“ it's all automatically! You just have to select the share option in any app and then select â€˜Radon'.
Feel free to try this awesome and innovative app! It's freeâ€¦