I have used the Subscription ID in my App and am getting following error at runtime.
Error Domain=POFaceServiceClient error - http response is not success : 
                {"error":{"code":"Unspecified","message":"Access denied due to invalid subscription key. Make sure you are subscribed to an API you are trying to call and provide the right key."}}
                     Code=401 "(null)"
I taken the ID from the Keys after creating a new service. I even regenerated them. Every time I run the program, same error is thrown.
Hope you guys have a fix.
Cheers!