I'm not trying to be mean, but I'm not sure where this app fits in its genre. There are many well established ePub reading app, and they all blow this one out of the water as far as formatting options go, and lots of formatting options seem to be the main feature that make these other ePub reading apps so popular. It will take a lot of effort to match or best Mantano and some of the others as they are lightyears more advanced than this one. Plus this one seems rather buggie still.