speech to text is not working on iPhone 7/8/11 with UIWebView or WkWebView

I had issue with speech to text is not working in IOS Devices with UIWebView so we have moved to UKWebView to fix this issue.

Tested with iPhone 7, 8 and 11. Only iPhone 8, It is working after multiple attempts. iPhone 8, 11, it is not working at all even with multiple attempts.

Are there any new plugins that needs to be added? Are there any existing plugins that needs to be upgraded ? Could you please guide us to fix this issue?

Any help is appreciated!