How can we make hover texts work on mobile devices?

A great disadvantage of hover text is that it does not work on mobile devices. I found an old thread asking for info buttons such as below.

how can we add such a button to the right of a question using HTML that wil work across all devices?

Hi Amir,

Hover texts are actually working on mobile devices. When you touch the field on a mobile screen mobile, hover text is displayed. Can you please let us know on which device or how you failed to make it work? It'd be a great help for us to investigate it further. 

In the meantime though, you can use sub labels to provide information for your users. 

Thank you for contacting us.

Kind Regards