I think the webapp/startup line blurred together in the funding frenzy of the past few years where revenue-less webapps could be acquired profitably for the fou

I think the webapp/startup line blurred together in the funding frenzy of the past few years where revenue-less webapps could be acquired profitably for the founder. But the line is growing more distinct starting as revenue regains its importance in the scene. Startups are projects with clear revenue goals, and relatively detailed plans by which to attain those goals, that the founders expect to turn into some sort of business. Webapps may just be useful and fun distractions without concrete monetization plans and/or goals. They have the potential to grow into startups, but are missing a lot of the other components that go along with it (business planning, revenue projects, goal deadlines, etc.). That said, there's still no absolutely clear delineation. Some may alternate between the two definitions.