Tridion Mobile and Responsive



I am new to SDL Tridion, i am checking that there is something called tridion mobile that its part of tridion website.

What is the difference between tridion mobile and responsive on tridion website, should i use tridion mobile or i can work on styling and responsiveness to adapt the designs on mobile.

Note : I don't need to have 2 versions of my website 1 mobile and 1 desktop, i need 1 responsive version.  


Thank You