(I work at Sift Science too.) Just to clarify, we charge 10 cents per unique user that you query in a month, not per query. So, you can query the same user as

(I work at Sift Science too.) Just to clarify, we charge 10 cents per unique user that you query in a month, not per query. So, you can query the same user as many times as you like in a month and the cost will not exceed 10 cents for that user.