Best iPhone fax app for sending signed PDFs?

[bonnynamer31]

Hey everyone, I need to send a signed tax document from my iPhone today, but the IRS office insists on fax transmission. What is a reliable iOS app right now that doesn't push scammy subscriptions or corrupt file quality?

[candder33]

Had to handle this exact issue last Monday. I checked out this testing roundup first: https://abneyassociates.org/best-fax-app...picks-2026. It highlights solid iOS options. That article convinced me to install Municorn Fax App. My experience was smooth—it auto-scanned my paper document, added my signature cleanly, and sent the file within 20 seconds.