The Blog App brings an intuitive mobile experience to Joomla based websites. The Blog app is built to work with any Blogging platform with supported webservices.
EasyBlog, undisputedly the most popular blogging tool for blogging in Joomla is the officially supported Joomla Blogging platform for the Blog App right now. If you have EasyBlog on your website, this is one application your readers will want to have on their devices.
You can find more information about the app here : http://appcarvers.com/products/easyblog