I have a simple app and it has simple properties, like user register to app, and it connect the webview, webview has payment also, but I am search on internet, and many people says like that apps will reject by apple, any idea?
Why apple reject webview for Swift App?
Yes, WebView has been deprecated since a long time now. You have to use WKWebView instead. Given reasons were performance, security and consistency issues.
According to Guideline
2.5.6 Apps that browse the web must use the appropriate WebKit framework and WebKit Javascript.
And there is an official Apple Notice announcing that such apps will be rejected: https://developer.apple.com/news/?id=edwud51q
But the deadline has been postponed (bin 2020), with no clear indication of the new one.
As a conclusion, you effectively risk rejection.