It is possible to set up Chipolos on multiple mobile devices. Both Chipolo Android and iOS applications are capable of sharing. Lower on the page are detailed picture guides for both Android and iOS. Video tutorial:

Android - Sharing Chipolo (iOS instructions below)

• First, connect the Chipolo to the first phone;
  
  
• Go to the detail view of the active Chipolo;
  
• Tap on the settings button (3 little dots);
  
  
• Tap on 'Sharing <Chipolo name>';
  
  
• Tap on 'Share this Chipolo';
  
  
• Enter the e-mail address of the other user of the Chipolo;
  
  
• The user will now be requested to accept your shared Chipolo.

Once accepted the Chipolo can be ringed and from the new device if the first device isn't connected with it anymore. There are no simultaneous connections possible, only one device at the time. 

iOS - Sharing Chipolo

• First, connect the Chipolo to the first phone;
  
  
• Go to the detail view of the active Chipolo;
  
• Tap on the settings button (3 little dots);
  
  
• Tap on 'Sharing <Chipolo name>';
  
  
• Tap on 'Share this Chipolo';
  
  
• Enter the e-mail address of the other user of the Chipolo;
  
  
• The user will now be requested to accept your shared Chipolo.

Once accepted the Chipolo can be ringed and from the new device if the first device isn't connected with it anymore. There are no simultaneous connections possible, only one device at the time.