This looks great but I don't see anything about pricing / business model, which worries me. Are they going to start charging for subscriptions once they're esta

This looks great but I don't see anything about pricing / business model, which worries me. Are they going to start charging for subscriptions once they're established? or inserting ads everywhere to make money? or do the intend to pursue freemium features with a solid "free forever" feature set? I only really want to invest the time and energy into getting my friends using this service if it's the latter.