Am I reading this right? You do still need internet access, to actually retrieve the page from someone else. Also I'm not sure how this will reduce data costs. Do providers charge different amounts for getting data from different servers? The same amount of data is still going into your device, it's just coming from somewhere else than usual
Yes, I was confused as well. The current Hacker News title is “Ceno, browse the web without internet access”, but on the official site the headline/<title> reads “Ceno Browser | Share the Web!”.
That mismatch is likely what is causing the confusion. The HN title probably should be updated to reflect the current title used on the site.
Another possibility is that the original title actually was “browse the web without internet access” and the developers later changed the site headline after the post was submitted to HN.