IDTech iOS Framework Guide  1.1.088
API reference for UniPay
Call the Singleton instance of the IDT_UniPay framework object:

A Singleton instance has been established in the IDT_UniPay class. To utilize the delegate protocols, best practices would be initialize the connection by setting the delegate with the singleton instance.

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//init object
[IDT_UniPay sharedController].delegate = self;
}