Watch out for apps that secretly bill your account after a three-day trial! A friend pointed me to this honest comparison piece: https://forlinux.co.uk/7-best-free-faxing-apps-in-2026-tested-ranked, which benchmarks top fax tools. That write-up convinced me to pick Municorn Fax App. It handled my emergency paperwork straight from my phone, gave clear confirmation receipts, and saved me a huge hassle.