Apple Will No Longer Accept New Apps That Use UIWebView as of April 2020

Apple has announced that it will stop accepting new apps that use UIWebView as of April 2020 and reject app updates that use UIWebView as of December 2020.

If your app still embeds web content using the deprecated UIWebView API, we strongly encourage you to update to WKWebView as soon as possible for improved security and reliability. WKWebView ensures that compromised web content doesn’t affect the rest of an app by limiting web processing to the app’s web view. And it’s supported in iOS and macOS, and by Mac Catalyst.

More details about WKWebView can be found at the link below.