EtherFax vs InterFAX (2026): which should you pick?
As of Nov 13, 2026, InterFAX grades higher than EtherFax: 2.4 against 2.0 out of 4.0.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
InterFAX grades higher on the free plan. They get the same grade on value for money, features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
InterFAX
Cloud fax by subscription or prepaid credit, with REST and SOAP APIs
Which one is for you
Pick EtherFax if
- Fits if you are a hospital or clinic swapping faxes with Epic or OnBase
- Works for agencies that need a FedRAMP-listed fax service
Look elsewhere if
- Not for you if you want a price before you talk to anyone, because none is published
- Skip it if you are one person who wants to sign up and send a fax today
- Watch out: email faxing is described for Microsoft 365 and Google Workspace users only
- Watch out: it is pitched at organizations and workflows, so a small office may find it more than it needs
Pick InterFAX if
- Fits if you want to add fax to your own software through an API
- Works for healthcare and finance teams that need compliance statements
Look elsewhere if
- Skip it if you want a yearly rate, as prices are shown monthly only
- Tight if you want toll-free numbers or several lines, which need a custom quote
- Watch out: PCI DSS compliant outbound faxing costs an extra per-fax fee that isn't published
- Skip it if you fax twice a year from a home office, as the pitch is built for developers and IT teams
How we grade them
| 2.0GPAEtherFaxFair | 2.4GPAInterFAXFair | |
|---|---|---|
| Value for money | CNo price is published, so it sits in the middle of online fax tools, which start at $6.99 a month for the cheaper quarter. | C$9.95 a month for 100 inbound and 100 outbound pages, matching the category's $9.95 middle. Extra pages are $0.09 each, and long pages are billed in six-second steps. |
| Free plan and trial | FNothing free is listed: no free plan and no trial, only a contact-the-company route. | CA free trial on monthly plans, which the product page describes as 30 days of free credits. The listing doesn't say if a card is needed. |
| Features | BEngage for sending and tracking, Flow for AI routing, a REST API and printer firmware integrations cover the job. The listing names no gap in it. | BREST, SOAP and SMTP APIs, Gmail and Outlook sending, Salesforce and healthcare connectors, and SOC 2, ISO 27001 and HIPAA statements. The listing shows no gap in the fax job itself. |
| Ease of use | CNo store rating is on record and it is sold to organizations, so setup means talking to the company and connecting your records system. | CNo store rating on record. The pitch is built around developers and IT teams wiring fax into other software. |
| Platforms and integrations | BWeb only, but with Epic, OnBase, Teams, Slack, Microsoft 365, Google Workspace, Canon and Ricoh integrations, plus an API. | BWeb admin, with REST, SOAP and SMTP APIs, code libraries on GitHub, and Epic, OncoEMR and Salesforce connectors. No phone or desktop app is listed. |
| Best for | cloud faxing for hospitals and government | fax with an API and compliance papers |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: EtherFax and InterFAX. How we grade
Where they differ
At a glance
| EtherFax | InterFAX | |
|---|---|---|
| Pricing | Paid | Free trial |
| Starts at | Not published | $9.95 per month for 100 inbound and 100 outbound pages, billed monthly |
| Free plan | None | None |
| Free trial | None listed | Free trial on monthly plans; the product page offers 30 days of free credits |
| Web | ||
| Made by | ETHERFAX, LLC | Upland Software, Inc. |
| Price read from | Not confirmed | uplandsoftware.com |
| Checked | Nov 13, 2026 | Nov 12, 2026 |
Worth knowing
EtherFax
- No prices are published; the site directs visitors to contact the company.
- Aimed at organizations, with no self-serve plan for individuals.
- Email faxing is described for Microsoft 365 and Google Workspace users.
InterFAX
- Subscription prices are shown monthly only; no annual rates are listed.
- Pages longer than one minute are charged in six-second increments at one-tenth of the per-page cost.
- Toll-free numbers, multiple lines and larger prepaid packages need a custom quote from sales.
- PCI DSS compliant outbound faxing costs an additional fee per fax; the fee is not published.
Key features
EtherFax
- Engage fax application
- A web-based client for sending, receiving and tracking faxes, with shared workspaces so incoming faxes go to teams rather than individuals.
- Flow document routing
- Flow acts as a digital mailroom that uses AI to open, sort and route incoming documents into a system of record.
- Secure Exchange Network
- Faxes sent between endpoints on the EtherFax network travel over its own cloud network instead of phone lines.
- Scanner and printer integrations
- Cloud faxing is built into Xerox and Lexmark firmware and integrates with Canon and Ricoh devices.
- REST API
- A developer API lets third-party applications send and receive faxes through the network.
- Compliance claims
- The site says its commercial environment complies with HIPAA and SOC 2 and is HITRUST and PCI DSS certified, and that its government service meets FedRAMP High.
InterFAX
- REST, SOAP and SMTP APIs
- Developers can add faxing to an application with REST, SOAP or SMTP APIs and GitHub libraries for Java, .NET, PHP, Ruby and more.
- Email and desktop integrations
- Send faxes from Gmail, Outlook or any email client over SMTP, and fax from inside Salesforce.
- Healthcare integrations
- Connectors are listed for Epic 2017 and later and for OncoEMR, with HIPAA and PHIPA alignment stated for inbound and outbound faxes.
- Compliance options
- The vendor lists SOC 2 audited, ISO 27001 accredited and HIPAA compliant, plus PCI DSS compliant outbound faxing for a small extra fee per fax.
- Web admin and worldwide servers
- A web admin screen monitors usage, and servers in several regions are offered for data sovereignty.
Plans
EtherFax
Pricing could not be confirmed. See etherfax.net.
InterFAX
Fax + 200$9.95
per month for 100 inbound and 100 outbound pages, billed monthly
Local fax number included, no setup fee or contract; $0.09 per additional page.
Fax + 500$22.95
per month for 250 inbound and 250 outbound pages, billed monthly
Local number included, no contract; $0.09 per additional page.
Fax + 1000$42.95
per month for 500 inbound and 500 outbound pages, billed monthly
Local number included, no contract; $0.08 per additional page.
CustomCustom
Built with sales: toll-free numbers, multiple lines, extra security options and data sovereignty at high volume.
Pre-paid Basic$10
one-time purchase of 91 pages at $0.11 per page
No monthly commitment or minimum. A $50 Level 1 package gives 500 pages at $0.10; larger packages come from sales.
Ways to pay less
EtherFax
No public discounts listed.
InterFAX
- Other savings
Free developer program with free faxing to one number
InterFAX says its free Developer program includes API access, free faxing to one number and expert support.
Common questions
Which is cheaper, EtherFax or InterFAX?
As of Nov 13, 2026, EtherFax has no price we could confirm, and InterFAX starts at $9.95 per month for 100 inbound and 100 outbound pages, billed monthly.
Which has a free plan, EtherFax or InterFAX?
As of Nov 13, 2026, neither EtherFax nor InterFAX has a free plan. InterFAX has a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.