, Craig_​Matthews wrote

RT vs. Pro really isn't at issue here since the database discussion is about the limitations of the WinRT / Store App API which is on both RT and Pro devices.

Ok - rephrase. If you intend to bundle SQL Express and are going to refuse to write a web-service to do the heavy lifting, you'll need to not write your app as a "Modern" metro app.

This means if you want to write it for a tablet, you'll need to write it for Pro, since RT can only do "Modern" apps