New iOS API for nearby interactions using bluetooth LE

[Diegman]

Bubble API ( http://bubbleapi.com ) enables you to detect & exchange data between nearby users with the same app. It's free and setup takes a couple lines without getting into CoreBluetooth at all.

this is how it works :

1. set a dictionary of attributes you want to broadcast to nearby users

2. listen to the delegate method and get the attributes of the users nearby

The server manages the "graph" of people nearby based on what they detect, so you can use this to communicate between many devices in the same room.

The attributes are broadcasted both in the foreground AND background modes, so you can use this to wake up app users with the same app who are in the same room.