SOAP, originally defined as Simple Object Access Protocol,
It is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks.
for more Info do Google.
“How can we integrate SOAP in iOS“
Answer : http://www.priyaontech.com/2012/10/soap-based-webservices-integration-in-an-ios-app/
solved What is SOAP Services ? How can we integrate SOAP in IOS? [closed]