title: Can an iOS app receive data from any bluetooth device?
body: <p>So my question is can we create an iOS app that can receive data from any bluetooth devices? Even the devices we buy it form eBay?</p>
  
  <p>Any encoding when the data sent from the devices make us can not decode them? Or another description : Can the bluetooth device limit the app that can connect to them ?</p>
  
  <p>Thank you very much.</p>