The question with Overcast, is whether it will be able to compete in the open market with Marco's almost quixotic desire to avoid any form of tracking whatsoever. He won't even track stop/start/listen actions, and now he's eliminating tracking pixels (https://marco.org/2018/04/27/overcast42) - all very admirable, but by foregoing all the obvious revenue opportunities, will he be able to make it up by attracting a large enough audience who will purchase/subscribe to his app so that he can continue to develop it? Is privacy an important enough attribute for the podcast listening audience?