eFax vs Sfax

Here is a comparison between Online Fax Service products Sfax & eFax.
The comparison details include features, reviews, ratings and pricing.

Product Name eFax Sfax RingCentral Fax
Editor's Rating




Website Website Website Website
Price US$12.95/mo US$36/yr US$7.99/mo
Review Read Read Read

Smart phone apps, digital signature, large file faxing, enhanced security, multiple email addresses, 24x7 support, 30-day free trial.

Digital signature, mobile apps, easy integration with business applications, unlimited users, highly secure environment, HIPAA compliant, in-house support, no hidden charges.

Toll free numbers, vanity numbers, send/receive fax as email, integration with cloud storage, encrypted connection, phone alerts, online log, free trial.


Separate allocation for incoming and outgoing fax pages, some of the advanced features like fax preview not compatible with Mac, high prices.

Costly priced monthly plans, free trial for just 14 days as against industry standard of 30 days, does not offer fax through email.

It’s a complete online phone solution and hence the interface can sometimes be ‘too much’ for fax only users, the entry level plan does not have phone support


eFax is one of the largest and oldest online fax services out there. It gives you the option to choose a local fax number from 4,300 cities across 49 countries worldwide.

Sfax is highly secure, HIPAA compliant cloud based internet fax service that is designed to meet the rigorous requirements of healthcare and other data sensitive industries.

RingCentral offers multiple internet fax plans based upon the number of pages. You can either choose to have a common fax number for all your employees or go for a dedicated fax number for each one of them.

Online Fax Service Features
Tollfree Numbers
Local Numbers
Port Numbers
Vanity Numbers
Email Fax
Fax Alerts SMS
Online Account
Fax Archive
Integrations 4
Preview Faxes
Custom Cover
Additional Page 10¢ 10¢ 5.9-3.9¢
Internation Fax
Mobile Apps 2
Digital Signature
Fax Machine
Free Trial 30 Days 14 Days 30 Days
Support Options 3 2 3