What is the difference between Exclusive Offer and Smart Skip If Already Purchased?

In the Exclusive Offer feature, the upselling offer will be shown to the customers only once, whether they accept or reject it.

Smart Skip If Already Purchased is a global feature, so as to say, the Offer will be shown to the customers only when they have not purchased the offer product already either normally or via upsell.

The Exclusive Offer feature is available in the funnel settings while the Smart Skip is a configuration under the Global Settings tab