Accessing the “info” button and details screen is the same in iOS 12 or later for iPhone and iPad, here’s where to look: Open the Messages app in iOS 12 as usual, and then open any message thread or conversation At the very top of the screen look for the contacts name and icon, and tap on that right where the tiny light grey “>” button is

A lowercase letter, enclosed in a rounded square or circle. Implemented in apps or websites to indicate that help or further information is available. May be used as a logo for tourist information signage in a town or city.