PayKKa provides an SDK that enables merchants to embed a native checkout in their apps and supports direct integration with Objective-C and Swift iOS app projects. This makes it easy for merchants to integrate the PayKKa gateway, accept payments and complete transactions within their apps, and customize callbacks for various payment statuses. The latest iOS SDK download link can be found in the iOS SDK Release History.

The SDK supports direct integration with Objective-C and Swift (UIKit / SwiftUI). It has been tested and is compatible with devices running iOS 14 or later.
The following table lists the device models, iOS versions, and other compatibility details that have been verified through testing:
| Model | iOS Version | Apple Pay Support |
|---|---|---|
| iPhone XR | 14.5 | ✅ Supported |
| iPhone 11 | 15.3 | ✅ Supported |
| iPhone 14 Pro | 18.5 | ✅ Supported |
| iPhone 15 Pro Max | 18.5 | ✅ Supported |
| iPhone 17 Pro | 26.1 | ✅ Supported |