Kagi News (formerly Kite) Product Manager here,

You can use the website and even make it a web app if you want. We’ll be releasing a mobile version that will be better suited but will have the same features :)

Will you have an RSS feed that can be integrated into Tapestry (mobile app by Iconfactory)?

It's existed for months by now, and has been usable for nearly as long. I'd say you can decide if you need extra fluff like native apps or further "polishing" at this point.