Gratis

Gratis /ˈɡreɪtɨs/ is the quality of an action where the action is willingly provided without any requirement by the provider for compensation or monetary remuneration. It is often referred to in English as free of charge (FOC), complimentary, or on the house. Companies, producers, and service providers often provide certain things free of charge as part of a larger business model, pricing strategy, or as a donation.