Great product and great to see that people are still working on things around RSS. One minor nitpick: You should have a search bar on the frontpage. Or rather the page you get when you click on the search button should be the frontpage, maybe with a bunch of links to the code, an about page, etc..
at the moment there is no business use case being a just started open source project, but there is an API and then companies can design what they want.