Aside from both being functional languages, they have relatively little in common. Purescript has Haskell-style purity (with synchronous impurity via monads) an

Aside from both being functional languages, they have relatively little in common. Purescript has Haskell-style purity (with synchronous impurity via monads) and doesn’t have an inherent concept of processes or message passing like Elixir/Erlang do. Purescript is statically typed with no (I think?) macro system, and elixir is dynamic and makes extensive use of macros. Etc.