Offering basic services for free while charging a premium for advanced or special features.(adjective)
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Use "freemium" in a sentence
"While you might not have heard the term freemium, if you use any Web product that costs you nothing, then you have direct contact with the freemium strategy."
"These games, downloaded for free, are known as "freemium" games."
"What one calls freemium another calls marketing. reply"