Freemium Enterprise = Collaborative / Business-Critical / Annuity-Like Dropbox ) Slack ) 18MM 3.0% ine 4MM 50% ine L L ) ) d r d r e a e a R B R B ( ( lue lue B B ( ( Total 9MM 1.5% Total s 2MM 25% s r f r f e o e o s s % U % U r r id e id e a s a s P U P U id 0 0% id a a 0 0% P 2016 2017 2018 P 2015 2016 2017 Wix ) SurveyMonkey ) 4MM 4% ine 0.8MM 4% ine L L ) ) r d r d a e a e B R B R ( ( lue lue B B ( ( 2MM 2% Total 0.4MM 2% Total s s r f r f e o e o s s U % U % id r id r e e a s a s P U P U 0 0% id 0 0% id a a 2016 2017 2018 P 2016 2017 2018 P Paid Users Paid % of Total Users Source: Dropbox = Public releases & Goldman Sachs Investment Research estimates. Slack = Public press release (05/18), SurveyMonkey = Company releases. Wix = Company presentation (3/19). Wix total users represent those with an account. Note: Paid users refers to subscribers to Internet Trends premium products. Paid user % of total = share of payers in a period divided by total active users in the same period. 108 2019