There's some operational cost (for running servers and such), but not that high. There's considerable customer support cost. The main thing that I feel makes

There's some operational cost (for running servers and such), but not that high. There's considerable customer support cost. The main thing that I feel makes life tough is that the pipeline from, say, doing some paid ads and seeing the results is several months long, and the feedback loop on changes that can affect conversion rates and monetization is similarly very long. We've learned to cope with it but it would be nice to have a one-month feedback loop or shorter.