eFax vs InterFAX (2026): which should you pick?
As of Nov 12, 2026, eFax grades higher than InterFAX: 2.8 against 2.4 out of 4.0.
Checked Oct 23, 2026 and Nov 12, 2026 · graded Oct 24, 2026 and Nov 12, 2026 by ToolGPA
eFax grades higher on ease of use and platforms. They get the same grade on value for money, the free plan and features.
Price, platforms and features side by side. The table says where each price was read and when.
eFax
Online fax by email, web and apps, with personal and business plans
InterFAX
Cloud fax by subscription or prepaid credit, with REST and SOAP APIs
Which one is for you
Pick eFax if
- Fits if you fax within the US and Canada and want it all in your email
- Works for small medical offices that want a signed BAA on a plan bought online, which is Business
Look elsewhere if
- Skip it if you fax abroad on Personal, which covers pages to the US and Canada only
- Pricey if you need a signed BAA, which Personal lacks; Business is $33.33 a month billed yearly
- Not for you if you want a desktop app on a Mac, as the print-to-fax app is Windows only
- Watch out: extra pages are 10 cents on Personal and 7 cents on Business, and international rates vary by country
- Watch out: on Business, extra users are $10 a month and extra numbers $5, and the API needs Corporate, priced by sales
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
| 2.8GPAeFaxGood | 2.4GPAInterFAXFair | |
|---|---|---|
| Value for money | CPersonal is $15.83 a month billed yearly ($18.99 monthly) for one number and 200 pages, past the start of this category's dearer quarter at $14.95. Faxing abroad and a signed BAA need Business at $33.33. | 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 | CA 7-day trial of Personal with up to 200 pages, and no free plan after it. The listing doesn't say whether the trial takes a card. | 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 | BEmail to fax, local, toll-free or transferred numbers, a Windows print-to-fax app, phone apps with e-signing and searchable storage on every plan, with an API on Corporate. That covers the job, split across its plans. | 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 | BNo store rating on record. Email to fax is on every plan, so you send by attaching a document to an email, and the apps are there if you want them. | CNo store rating on record. The pitch is built around developers and IT teams wiring fax into other software. |
| Platforms and integrations | AWeb, Windows, iPhone and Android, with Dropbox, Google Drive and Epic, and a REST API on Corporate. There's no Mac app, and the API is only on the plan sold through sales. | 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 | faxing by email within the US and Canada | 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: eFax and InterFAX. How we grade
Price against what you get
eFax starts at $15.83 a month and scores 3.3 out of 4 on features, ease of use and platforms. InterFAX starts at $9.95 a month and scores 2.7.
eFax scores higher, and starts $5.88 a month higher: the question is whether the extra is worth that to you. Of the other online fax services on the chart, none scores higher than eFax for less, and 2 score higher than InterFAX for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- InterFAX also covers workflow automation.
At a glance
| eFax | InterFAX | |
|---|---|---|
| Pricing | Free trial | Free trial |
| Starts at | $15.83 per month for 200 pages, billed annually ($18.99 billed monthly) | $9.95 per month for 100 inbound and 100 outbound pages, billed monthly |
| Free plan | None | None |
| Free trial | 7-day free trial of the Personal plan, with up to 200 pages | Free trial on monthly plans; the product page offers 30 days of free credits |
| Web | ||
| Windows | ||
| iOS | ||
| Android | ||
| Made by | Consensus Cloud Solutions Inc. | Upland Software, Inc. |
| Price read from | efax.com | uplandsoftware.com |
| Checked | Oct 23, 2026 | Nov 12, 2026 |
Worth knowing
eFax
- The Personal plan covers pages to the US and Canada only and does not include a signed BAA; Business does.
- Pages over the plan cost 10 cents each on Personal and 7 cents on Business, and international rates vary by country.
- Extra users on Business are $10 a month each and extra numbers $5 a month each.
- The desktop app is for Windows; no Mac app is listed.
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
eFax
- Email to fax
- Send a fax by emailing the document to the recipient's number, and get incoming faxes in your inbox. Included on every plan.
- Local, toll-free and ported numbers
- Choose a local or toll-free number, or transfer the one you already have. Business adds extra numbers at $5 a month each.
- Print-to-Fax desktop app
- A free Windows 10 app sends faxes from the print menu of other programs, with up to 10 documents per fax and over 200 file types.
- Mobile apps and e-signatures
- iPhone and Android apps send and receive faxes, and you can sign a fax electronically before sending it.
- Searchable fax storage
- Every plan keeps sent and received faxes in online storage that can be searched later.
- Corporate, API and healthcare tools
- eFax Corporate adds a REST API and admin portal, and Consensus sells add-ons for Epic workflows, AI data extraction and FedRAMP-authorized government faxing.
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
eFax
Personal$15.83
per month for 200 pages, billed annually ($18.99 billed monthly)
One user and one fax number, pages to the US and Canada, 10 cents per extra page. First month $4.99 on monthly billing.
Business$33.33
per month for 500 pages, billed annually ($39.99 billed monthly)
Five users and one number, pages to 51 countries, 7 cents per extra page and a signed BAA. First month $14.99 on monthly billing.
CorporateCustom
Plans built with sales, with the full eFax API, an admin portal, a dedicated account manager and HITRUST certification.
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
eFax
- Annual discount
Save up to 17% with annual billing
eFax's pricing page lists Personal at $15.83 a month billed annually against $18.99 monthly, and Business at $33.33 against $39.99.
- Other savings
Reduced first month on monthly plans
The pricing page takes $14 off the first month of Personal ($4.99) and $25 off the first month of Business ($14.99) on monthly billing.
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, eFax or InterFAX?
As of Nov 12, 2026, InterFAX is cheaper to start with: $9.95 a month, against $15.83 a month for eFax. eFax starts at $15.83 per month for 200 pages, billed annually ($18.99 billed monthly), and InterFAX starts at $9.95 per month for 100 inbound and 100 outbound pages, billed monthly.
Which has a free plan, eFax or InterFAX?
As of Nov 12, 2026, neither eFax nor InterFAX has a free plan. Both have a free trial.
Which platforms do eFax and InterFAX run on?
As of Nov 12, 2026, only eFax lists Windows, iOS and Android apps. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
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.