Creating local folios is great when you don't want to constantly upload your folios and occupy the data line.
but what about working offline? like in the train, on the road or during network outages like acrobat.com?
Creating offline folios still gives not the possibility to be network independent.
For a real offline solution and device preview, the folio builder should work without the need to log in.
Or am I missing something here?
I don't understand. You can preview a local folio on desktop and on an Android connected device. You do not need to log into the folio builder in order to see & work on your local folios. See the image of me not logged in to the folio builder panel, yet I can see my local folios and have preview available.