| Price from | $18.99/mo | $5/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 3 | 4 |
| Spec score · Online Fax Services | 9.2 (#1) | 9.1 (#3) |
| Spec score · Online fax services | 9.1 (#4) | 8.9 (#11) |
| Spec score · eFax Software | 9.3 (#1) | 8.6 (#8) |
| Spec score · Customer Service Fax Software | 9.3 (#1) | 8.7 (#3) |
| Compliance support | hipaa | none |
| Founded | 1999 | 2004 |
| Free plan | No | No |
| Headquarters | Los Angeles, California, United States | 700 S. Flower St., 15th Floor, Los Angeles, CA 90017, United States |
| Inbound faxing | Yes | Yes |
| International faxing | Yes | Yes |
| Mobile apps | eFax provides Android and iOS applications for sending and receiving faxes from smartphones and tablets. | Yes |
| Monthly page allowance | 200 | 100 |
| Rating on Google Play | 4.1 out of 5 from 15.8K reviews | 4.1 out of 5 from 2,110 reviews |
| Rating on Trustpilot | 4.3 out of 5 from 2,371 reviews | 3.0 out of 5 from 1,332 reviews |
| Virtual fax number | Yes | Yes |
| Web portal | The MyAccount portal lets users manage and track documents from any internet-connected device. | MyFax Central lets users send and receive faxes in a browser and manage contacts, users, settings, and usage reports. |
| What it does | eFax sends, receives, stores and signs faxes through email, web portals, mobile devices and cloud services without a physical fax machine. | MyFax is a cloud fax service that sends and receives faxes through email, a browser portal, or mobile apps without fax hardware. |