Can a Shopify app work in Arabic?

Yes, and properly — not a translated left-to-right screen. Eleganza La Mode is browsed in English and Arabic and priced in AED, with the layout rebuilt for right-to-left reading rather than mirrored.

The translation is the easy half. The hard half is that a right-to-left screen reads in a different order, so where things sit has to change, not only what they say.

Currency matters as much: a price shown in the wrong currency is a price nobody trusts.