Compare FaxFlow vs. LuzardoFax

FaxFlow is a versatile online fax service available for iOS, Android, and web platforms that serves as a modern substitute for traditional fax machines and landlines. Users can easily capture documents using their smartphone camera or import files from PDF, Word, or image formats, then add a professional cover sheet, input the recipient's fax number, and send the fax seamlessly. Each transmission provides a delivery confirmation, accommodates unlimited pages, and is capable of reaching over 180 countries worldwide. This application is particularly useful for sending IRS and tax documents, legal papers, and real estate contracts. While the app itself can be downloaded for free, sending faxes necessitates a subscription. Additionally, it offers handy tools such as a fax cover sheet generator and a directory for US fax numbers, enhancing the user experience. The app has received impressive ratings of 4.8 out of 5 stars on the App Store and 4.6 out of 5 stars on Google Play, reflecting its popularity and reliability among users. Overall, FaxFlow is a comprehensive solution for anyone looking to handle faxing tasks efficiently without the need for outdated hardware.

LuzardoFax is a cloud fax platform for organizations that transmit protected health information under HIPAA. The architecture is deliberately narrow. Documents are converted server-side and flattened to monochrome before transmission, so a colour element that would vanish on the receiving end never leaves the system. Fax content is never sent by email: notifications carry page count, size and time only — never the document, the sender or the recipient. On outbound faxes the document never leaves our servers; the carrier receives a tokenised URL valid for 30 minutes. On inbound faxes the carrier necessarily receives the transmission, and we delete its copy through their API as soon as ours is stored, logging the result. The Zapier integration exposes triggers but no send action — routing PHI through a third-party automation layer was ruled out at design time rather than shipped and disclaimed. Billing is metered on actual document pages rather than transmission duration. Failed and cancelled transmissions record zero billed pages. At 110 percent of the monthly allowance, sending and receiving pause rather than accruing overage. Each Business Associate Agreement signature is hashed and anchored to the Bitcoin blockchain through OpenTimestamps. Customers can download the agreement, the .ots proof and an evidence record, and verify the execution date against the blockchain without relying on LuzardoFax existing at the time of verification. Encrypted at rest with LUKS2 (AES-256), TLS 1.3 in transit, per-account audit logs, two-factor authentication, and per-user audit logs with role management on the Business plan.