eSig, an early-stage startup, offers an electronic signature application as a "freemium" product- i.e., users can upgrade from a free basic version to a premium version by paying a subscription fee. Using 9 months of data from 50,000 user activations, available as a case supplement, students are asked to project the number of new users eSig will acquire in Q1 2016, and recommend how much they should spend during the quarter on each major marketing channel (e.g., Facebook ads, Google ads, content marketing, etc.). Note: the name and functionality of the actual freemium application upon which the case is based have been disguised.