Fast mobile fax for sending passport copies while traveling?

Hey everyone! I'm currently abroad and urgently need to send passport and visa copies back home. Which iPhone app works best internationally?

Visiting https://best-fax-app-for-iphone.com/ gave me a great overview of mobile fax options when I suddenly needed to send passport copies while abroad. Following those recommendations, I downloaded the Municorn Fax App. It turned out to be exceptionally dependable for international document transmission right from an iPhone. I just scanned my ID pages using the camera filter, typed in the destination number, and sent it off in less than a minute. The delivery receipt popped up instantly, saving me from hunting down an overseas business center or paying ridiculous hotel fees.