Alternatives · Online Fax
InterFAX alternatives
As of Nov 13, 2026, the best InterFAX alternative for most people is Notifyre (2.2 GPA), second in our ranking of online fax services.
InterFAX compared with 6 alternatives: SRFax, eFax, Phaxio, Notifyre, Sfax and 1 more.
InterFAX is a paid product with a free trial, starting at $9.95 per month for 100 inbound and 100 outbound pages, billed monthly. None of the alternatives has a free plan. 2 more offer a free trial.
Listings checked up to Nov 12, 2026 · Where the facts come from
Black Friday: is there a InterFAX sale?
At a glance
Price against what you get
InterFAX starts at $9.95 a month and scores 2.7 out of 4 on features, ease of use and platforms. None of the 3 alternatives on this chart both scores higher and starts lower.
eFax scores higher without starting lower. Notifyre starts lower without scoring higher.
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
How each one differs from InterFAX
SRFax
Email-to-fax service with HIPAA plans and a REST API
- SRFax starts at $10.70 per month for 200 pages, billed annually ($12.60 billed monthly).
- SRFax does not cover workflow automation, which InterFAX does.
Suits: Healthcare offices in the US and Canada that need HIPAA or PHIPA compliant faxing
eFax
Online fax by email, web and apps, with personal and business plans
- eFax starts at $15.83 per month for 200 pages, billed annually ($18.99 billed monthly).
- eFax also lists Windows, iOS and Android apps.
- eFax does not cover workflow automation, which InterFAX does.
Suits: Individuals and small offices faxing within the US and Canada
Phaxio
Pay-per-page fax API for developers, from 7 cents a page
- Phaxio starts at $10 minimum top-up, then 7 cents per page in the US and Canada.
- Phaxio does not cover workflow automation, which InterFAX does.
Suits: Developers who need fax inside an application
Notifyre
Pay-per-page online fax and business texting, with a fax API
- Notifyre starts at $4.90 per month to receive 200 pages; sending is $0.03 a page.
- Notifyre also covers business texting.
- Notifyre does not cover workflow automation, which InterFAX does.
Suits: Offices that send faxes now and then and do not want a subscription
Sfax
HIPAA cloud fax for healthcare offices, with print drivers and an API
- Sfax also lists Windows, macOS and iOS apps.
- Sfax does not cover workflow automation, which InterFAX does.
Suits: Medical offices that need audited, HIPAA-compliant faxing
OpenText Fax (RightFax)
Enterprise fax server software that connects to EHR and ERP systems
- OpenText Fax (RightFax) also covers reports.
Suits: Hospitals and large enterprises replacing legacy fax servers
Limits worth knowing in 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.
Common questions
What are the alternatives to InterFAX?
The alternatives to InterFAX in this directory are SRFax, eFax, Phaxio, Notifyre, Sfax and OpenText Fax (RightFax). Each one has a side-by-side comparison with InterFAX.
Is there a free alternative to InterFAX?
None of the alternatives listed here has a free plan. eFax and Sfax offer a free trial.
Which InterFAX alternatives work on Windows?
The InterFAX listing does not include a Windows app. eFax and Sfax list one.
Which InterFAX alternatives work on macOS?
The InterFAX listing does not include a macOS app. Sfax lists one.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 23, 2026 to Nov 12, 2026. Vendors change prices without notice, so confirm on their site before you buy.