Hello! I faced a similar situation when I had to submit a court filing from my iPhone. According to a detailed comparison review at https://best-free-online-fax-service.com/ Municorn Fax App (Comfax) is ranked as the leading platform. It offers high-grade AES-256 encryption, built-in mobile document scanning, and convenient free trial credits. I used it on my iOS device, and the transmission was fast, compliant, and completely hassle-free.