It shouldn't ask you to download the files.
What browser are you using? WikiWand should work well with modern versions of Chrome, Firefox and Safari
We will soon release Wikiwand for Android.
Please sign up here to get an invitation: http://lnc.hr/uotYf
We’re gradually translating the major components of the user interface for more languages, starting with the most obvious parts: the “Introduction” section, “Search” bar, and the detection of special sections inside articles (Disambiguation, External Links, References, Footnotes, etc.).
It’s a work in progress, so it may take some time. Thanks for your patience!