FAX.PLUS vs Sinch Fax API

FAX.PLUS is a fax service for sending and receiving documents through web, desktop, Android, iOS, email, Google and multifunction printers. Users can select local, toll-free or international fax numbers, or port an existing number. Faxes can be sent to over 180 countries, with numbers available from 48 countries. The free plan includes 10 pages total. Basic costs $6.99 a month and includes 200 pages per month, one fax number and one member; its maximum is 60 pages per fax. Premium costs $13.99 a month for 500 pages, one number and one member. Business costs $27.99 a month for 1,000 pages and five members; Enterprise costs $79.99 a month for 4,000 pages and unlimited members. The service supports Google Workspace, Microsoft, Slack, Zapier, Teams, cloud storage and APIs. Its admin console manages users, roles, number access and usage limits. Faxes can be broadcast to up to 500 recipients with delivery tracking, and AI can convert them to searchable text and structured data. Stored documents use 256-bit AES encryption; transfers use TLS 1.2 or higher. Paid plans include a 30-day free period.

Sinch Fax API is a cloud service for sending and receiving faxes through a REST API. It supports delivery tracking and webhooks for incoming or completed faxes, with Basic or OAuth 2 authentication. If storage is enabled, fax logs and media remain available for 13 months before deletion. Listed formats include DOC, DOCX, PDF, TIF, JPG, TXT, PNG, URLs, and HTML. A customer portal shows fax status and send or receive times, and provides controls for users, groups, roles, and permissions. Sinch describes intelligent routing and automatic retries for failed transmissions, and says its U.S. fax-processing network has 99.999% uptime and redundant infrastructure. Customers can select local or toll-free numbers or bring their own; the infrastructure is described as scalable for high volumes. The service supports stated HIPAA, SOC 2, and GDPR compliance needs and secure transmission for healthcare data. A free Sinch Build Dashboard account is required to start, and signup includes a free virtual number for testing. Pay-as-you-go costs $0.05.