Hello,
I hope you and your loved ones are safe from COVID19!
I went through your current web app and feel confident to make it responsive(mobile as well as desktop friendly) and add a chat/video chat feature into it as per your requirements. I am an expert web developer having more than 7 years of experience and extensive knowledge. Please initiate a quick chat to discuss further.
My skills: PHP (OOP & CMS & Other frameworks) JavaScript, Wordpress, PHP5, MySQL, HTML5, CSS3, XHTML / DHTML, AJAX, jquery, Responsive Design and PSD to CSS.
I am looking forward to your response.
Best regards,
Mukesh