Sharer vs Sharper - What's the difference?

As nouns the difference between sharer and sharper

is that sharer is one who shares while sharper is (dated) a swindler; a cheat; a professional gambler who makes his living by cheating.

(sharp).

(en noun)

One who shares.

(informal) A dish at a restaurant, etc. intended to be shared between several people.

Can we order the seafood platter as a sharer ?

(head)

(sharp)

(wikipedia sharper) (en noun)

(dated) a swindler; a cheat; a professional gambler who makes his living by cheating.

* chiseler * spiv