Dmenu shows you a (restaurant's / café's) menu card right on your phone in a matter of seconds.
Actually, it is a mini website, that is accessed via one of many innovative customer interaction methods, and displays food or drinks menu cards digitally.
The primary origin of the Dmenu is derived from the urgent need for
social distancing compliant customer interaction methods, that arose
from the 2020 Covid-19 pandemic.
The secondary reason of existence is the clear advantage of usage over conventional menu cards.
Digital Menu cards can be changed instantaneously, all at once, when having implemented a "single source of truth". All known advantages of digital over physically printed apply.