content: On the one hand I agree with you, but on the other hand a dev has to make money somehow, especially when you're providing a service with any kind of backend.  They could introduce a free ad-supported option with full features, but honestly I can't see a way for them to backtrack on features without   4ad  a backlash.  Once the genie's out of the bottle there's not much you can do to monetize it after the fact without backlash.