send url via wifi

You shouldn't need custom software on the phone for iBeacon.

When I replied to your message I sent you this link: http://stackoverflow.com/questions/26404738/ios-passbook-with-estimote-ibeacon

which links to: https://developer.apple.com/ibeacon/Getting-Started-with-iBeacon.pdf

and also: http://stackoverflow.com/questions/26404738/ios-passbook-with-estimote-ibeacon

That says:

• Bluetooth must be turned on
  
• Location services must be turned on (Settings -> Privacy -> Location Services)
  
• Passbook needs to be authorised to use Location Services
  
• Background App Refresh needs to be turned on (Settings -> General -> Background App Refresh)
  
  

But yes, if it's too much to ask users to have that done on their phones then you may be out of luck.

Manufacturers have to be careful about what they enable by default on their phones, or you'd be spammed with advertisements whenever you went to a shopping centre!