Match Group: quarterly paid member count 2014-2021

According to the source: "Subscribers are users who purchase a subscription to one of our services. Users who purchase only à la carte features are not included in Subscribers."
Also according to the source: "Average Subscribers is calculated by summing the number of Subscribers at the end of each day in the relevant measurement period and dividing it by the number of calendar days in that period."
From the second quarter 2021, Match Group reports 'payers" instead of "subscribers": "rather than presenting Average Subscribers and Average Revenue per Subscriber (“ARPU”), we now present Payers and Revenue Per Payer (“RPP”) (as defined below). Unlike Average Subscribers, which included only users who purchase a subscription and were counted on a daily basis, Payers include all users from whom we earn revenue (including those who make only à la carte purchases) and are counted as unique users in a given month. Similarly, ARPU was a daily metric and included Direct Revenue sourced from subscribers only, whereas RPP is a monthly metric and includes all Direct Revenue. We believe that Payers and RPP, which account for non-subscriber users and the associated revenue, is more useful in evaluating the performance of our business."