UI : I have to add a subscribe button with Red Color.
User Interface, is the packaging material, the quality of the wrapping items and the placement and indication of openings. The wrapped present as well as the interaction between the object, and the recipient make up the entire experience
UX: Is this Button is really required?
UX is where we try to find out the experience of the end user, and assure user is able to understand all the feature we are trying to broadcast.