Sfax vs eFax Corporate

eFax Corporate offers email-to-fax, cloud storage integrations, local fax numbers, and device applications to customers worldwide while Sfax offers faxing services only to US and Canadian customers.

Sfax vs eFax Corporate


 Price per pageHIPAA ComplianceSecure Fax TransmissionseSignature ToolFax API
eFax CorporateCustom PricingYesYesYesYes

Feature Breakdown

Sfax vs eFax Corporate

Are eFax Corporate and Sfax secure fax solutions?

eFax Corporate provides industry-grade encryption methods to prevent cyber threats. It uses TLS encryption and 256-bit AES encryption, which provide a strong layer of protection against interception. Moreover, eFax assigns secure IDs and a toll-free or local number for each user. Data is stored in Tier III or Tier IV data centers with 24/7 monitoring.

Sfax provides the same encryption methods. As an added form of security, it doesn’t allow single sign-on (SSO). Instead, it offers multiple users per fax line. Data is also stored on your Sfax account, which uses SSAE16 Type II certified Tier III or IV data centers. 

SSAE16 is a set of auditing standards and guidance for service organizations established by the American Institute of Certified Public Accountants (AICPA). It’s important to note that in May 2017, SSAE 16 was superseded by SSAE 18, which included notable improvements.

Do they comply with HIPAA?

eFax Corporate and Sfax are internet service providers that help you comply with the Health Insurance Portability and Accountability Act (HIPAA). Compliance with HIPAA means you must employ technical standards, such as encrypted communications, to ensure the privacy and safety of protected health information (PHI). 

Both fax services are willing to sign a Business Associate Agreement (BAA), which would make them accountable for any PHI mishandling. Note that you need to get the proper plan to ensure HIPAA compliance. For eFax, you must avail of its eFax Corporate Plan with BAA. For Sfax, you can get any plan higher than the Standard plan.

Sfax vs eFax Corporate
Sfax vs eFax Corporate

Does eFax Corporate and Sfax support email-to-fax?

Sfax doesn’t allow faxing via email because of security concerns. You can only send a fax using your sFax account. If you’re looking for an alternative to Sfax that allows email to fax, eFax Corporate can be a good choice. It lets you fax from Gmail, Outlook, Yahoo, and other standard email clients. 

To secure fax by email transmissions, eFax Corporate uses eFax Secure. eFax Secure emails your faxes using TLS 1.2 encryption to protect them during transit. Meanwhile, faxes received arrive with a URL to a secure website. This URL directs you to your eFax Corporate account so you can view the fax securely.

Does eFax Corporate and Sfax support mobile faxing?

eFax Corporate allows faxing through its free Android or iOS apps. This helps you eliminate the sluggishness in traditional faxing by turning your mobile device into a virtual fax machine.

Sfax, on the other hand, limits mobile faxing to iOS and through your web browser. Also, its iOS app lets you monitor fax activity and securely manage your faxes from anywhere. However, it’s crucial to note that the Sfax app’s last update was in January 2022. The lack of newer updates could pose serious security risks and compatibility issues.

Sfax vs eFax Corporate
Sfax vs eFax Corporate

Which is better for eSigning?

eFax and Sfax have eSignature features, so you can sign your faxes without printing them. You can digitally sign documents using eFax in two ways: using your finger to write on a touchscreen or choosing from your saved signatures. Sfax lets you drag and drop your signature into your document. 

Does eFax Corporate have better API integrations?

Both Sfax and the eFax Corporate plan include API and developer support. These fax services also employ APIs based on the RESTful standard, which lets you create user-friendly systems across different devices and platforms. You can make your fax workflows more efficient with APIs. Configuring APIs lets you fax directly using your current DMS or EHR system

Sfax vs eFax Corporate
Sfax vs eFax Corporate

What are their fax number provisions?

eFax Corporate lets you port your existing fax number to their service. Alternatively, you can choose from local or toll-free numbers. Toll-free numbers are easier to remember, but local numbers help establish credibility.

Sfax also offers number porting services. Also, you must pay a $10 one-time fee for each ported fax line.

Which service has pricing and plans fit for businesses?

eFax Corporate’s pricing focuses on customizable solutions, so the total cost depends on your specific faxing needs and compliance requirements.

Sfax, on the other hand, follows a subscription-based pricing model. Its lowest plan starts at $29 per month. If you’re doing high-volume faxing regularly, consider paying for its Enterprise plan with customized pricing.

Sfax vs eFax Corporate
Sfax vs eFax Corporate

Verdict: eFax Corporate vs Sfax?

Sfax and eFax are HIPAA-compliant internet fax services that take data security and privacy seriously. However, eFax Corporate offers more faxing features, such as cloud storage integrations, email-to-fax, and local numbers. Also, it doesn’t limit faxing to certain countries or regions.

As for Sfax, it’s a noteworthy option, especially if you want to ensure compliance with various industry regulations. The fax service provides a complete audit trail of all faxes sent and received.

Why businesses choose iFax over
eFax Corporate and Sfax

Cost Effective

Fax at the cheapest rate of $0.01 per page and scale your plan to match your fax requirements at any stage.

Advanced Features

Access a host of advanced features including fax OCR, cloud fax, Z apier integration, team fax and more

Full Compliance

Send and receive faxes with full compliance with industry regulations like HIPAA, GLBA, UETA & GDPR.

“I would definitely recommend them”

“Our organization has been using this iFax service for a few months now which has been working very well. The customer service team are excellent, they have been very helpful in explaining our usage and how we can benefit from upgrading to a better package that will cost us less instead of trying to sell us more than we need.”
Shamin R.
Digital Marketing Mentor

“Cloud-Based Faxing”

“It was cheaper compared to other providers, the ease of use and very intuitive design and the reliability of the faxes being sent. My team and I always get great support from the team whenever an issue needs to be dealt with.”

John M., CIO (Medical Practice)

“I compared the most popular online fax services iFax is overall the best value and feature rich!”

“Great customer service! The Google Workspace integration has been great for our organization. Everyone likes it compared to our previous service.”

Omar C., IT Expert (Non-Profit)


Choose iFax for full compliance and advanced features in one plan

Whether you’re a small business or a large organization, you can count on iFax to make your faxing process efficient and hassle-free.
“Easy to use”
“It was great and easy to use. I will use it again. I didn’t have to go anywhere to fax or provide my credit card number.”
Jacinda T., Medical Records (Hospital & Health Care)

Yes, it is. If you are in the healthcare industry and are in search for a HIPAA-compliant fax provider, RingCentral is a god option.

However, if you’re looking for more – free fax numbers, seamless fax broadcasts, and quick integration with EMR and EHR systems – iFax emerges as the superior fax service for a comprehensive and user-friendly experience.