We are the provider of certain (on-line) services and we have different pricing for different user categories, depending on their volume of operations. Currently we use "tariff plan" as a term for pricing plan, but I think this term may be less common in the US than, say, "rate plan".
So, my question is: which term is more appropriate to describe a price plan for the consumer of online services, especially in American English. I personally tend to call it a "rate plan". Please advise.