Arabic font too small
I am using the iPad app. Arabic fonts are tiny - it is a problem, since in Arabic the shape of letters is nuanced. Having a "font size" option in an app is really beginner level in app design!
It would be good if they tested this stuff to see if it were usable. I sometimes get the sense that the Duolingo paid staff dosen't even really test this stuff out with the newer courses in non-Western languages, because some of the stuff slides through that is so bad and so easy to fix that I can't think of any other explanation other than that they aren't even really having anyone with the ability and authority to make changes even look at or test out the courses before they go live.
The problem is everywhere :(
Even in the Word part of the web site, the word title is displayed very big but it is cropped and so some diacritics disappear (you can check this by copying the word then paste it somewhere else like Microsoft Word).
My family knows when I'm working on Arabic because I use a looking glass :-D