hoehoe on "PureChat work on desktop but not on mobile"

Hi,

I have tried many option from PureChat dashboard to Wordpress but with not much help, is this because my theme does not support PureChat? I have tried many different livechat plugin its seem to work on both desktop and mobile device but their function is clearly not what I wanted eg: instantly chat through mobile app.

So my question is how do I get PureChat to work on mobile device not just on Desktop.

Thank You