multiple web view in one app (eg:- one app with facebook, google and yahoo)

Here is an example for two webViews in one viewController:

import UIKit
import WebKit
class ViewController: UIViewController {
    @IBOutlet weak var webViewA: WKWebView!
    @IBOutlet weak var webViewB: WKWebView!
   
    let urlA: String = "https:/
    let urlB: String = "https:/
   
    override func viewDidLoad() {
        super.viewDidLoad()
       
        let myURLA = URL(string: urlA)
        let myURLB = URL(string: urlB)
       
        let myRequestA = URLRequest(url: myURLA!)
        let myRequestB = URLRequest(url: myURLB!)
       
        webViewA.load(myRequestA)
        webViewB.load(myRequestB)
       
        webViewA.allowsBackForwardNavigationGestures = true
        webViewB.allowsBackForwardNavigationGestures = true
    }
}

Just put 2 WKWebViews in your Viewcontroller, create the outlets and use the code above.

You can also navigate through the websites.