Although the debate on HTML5 versus native apps seems to be favouring native apps currently, particularly in terms of user experience and performance, average developer revenues tell a very different story. Our survey data shows the mean average revenue for developers who consider HTML5 for mobile devices their primary platform is the highest of all platforms, just over twice that of the next nearest (iOS)*. However, the rewards are very unevenly shared, with the median average revenue for the same developers under half that of their iOS counterparts. Diving into the data we can see significant differences in revenue depending on how mobile apps built with web technologies are delivered to users and the categories they target. Understanding these differences could improve your chances of succeeding with HTML5.