This is the first Shiny app I created (as an exercise).
Based on simulations, this app calculates the probability of rolling a given score (or a higher one) in DnD, combining (almost) unlimited numbers of up to 3 types of dice, and an (optional) modifier.
The app is available here.
(NOTA: Para la versión en Español, entra a https://shiny.jdl-svr.lat/ProbDnD/)