This ia kinda hard to pronounce haha
Theres no accentuation on the word for syllable emphasis
There is one on the Ε. It is marked not above, but to the left of it.
I don't see it either but I think this is a problem with the font in Android, not Duo. (It's the same when I type a word with the accent on an initial capital.)
I can see the accent on my Android phone. It's small but it's there