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Sfax vs. SRFax


If you’re a medical professional looking for a reliable online fax service, chances are you’ve skimmed through a few comparison articles out of curiosity. You may already be wondering—what’s up with Sfax and SRFax? As it turns out, these two HIPAA compliant services have more differences than a simple addition of the letter “r.” As the cheaper option, SRFax definitely appeals to customers’ wallets—but are there circumstances in which Sfax might offer preferable services despite the extra cost? FindAFax has a review of SRFax, but if you’re looking for a direct comparison with Sfax, read on.

Account Flexibility

SRFax allows for multiple users without necessitating that everyone get their own individual fax numbers. In a similar vein, Sfax permits multiple organizations with multiple users and fax lines to utilize the same single plan. Plus, there’s no user limit for this service. Both simplify the account-holding process, meaning that you’ll be keeping track of just one account rather than 10.


HIPAA compliance comes into play here, with Sfax coming out on top for security, but SRFax provides more convenience. Sfax maintains that the use of unencrypted email would not be HIPAA compliant and thus limits their emails to the realm of notifications, which users can opt in and out of. On the other hand, SRFax utilizes email to a greater extent, notably providing options to access the service itself and send faxes using email. While this seems convenient at first—and SRFax does offer PGP email encryption—their competitor has a point. If you want the best protection for sensitive info, staying away from email might be something to consider.


Sfax offers digital signing as well as annotation. SRFax, in comparison, does not. If you’ve been dreaming of a paperless office, look to Sfax.


Considering that this category effectively sums up the whole point of the service, these two better do it well. Sfax users can simultaneously send and receive an unlimited number of faxes via the cloud, which is promising for the extreme faxers out there. SRFax simply allows users to attach as many documents as desired to an email message, which is then converted to fax format and sent.

Free Trial

SRFax has a 60-day free trial period that allows for cancellation at any time. Sfax’s free trial is a bit diminutive in comparison, clocking in at just 14 days.


To keep client information safe, Sfax features military-grade encryption, two-factor authentication, IP restricted accessibility, and more. SRFax provides password protection, SSL encryption, firewalls, and optional PGP encryption for emails.


SRFax is much less expensive, and also employs a system that rewards users with a $20 credit for each referral who signs up to use the service. The cheapest plan, Basic 25, clocks in at $3.29/month and $36/year. For Sfax, the cheapest plan (Solo) is available for $9/month or $89/year.

Final Verdict

Sfax holds the promise that users will “stop sucking at faxing.” In keeping with the tagline, Sfax offers quality service for those who are still feeling skittish about faxing through email. The added bonus of eSignatures only increases its appeal. If you’re looking for something you can try out first, though, SRFax’s 60-day trial period takes the cake. And the price, of course, is just another plus. Overall, both services provide secure and extensive faxing capabilities with the kind of flexibility that can only make your life easier.