Flex Email-to-Fax vs Sfax
| Flex Email-to-Fax | Sfax | |
|---|---|---|
| Platforms | Web | Web, Windows, macOS, iOS |
| Virtual fax number | Yes | Yes |
| Free plan | No | |
| Monthly page allowance | 350 pages/mo | |
| Inbound faxing | Yes | |
| Mobile apps | Yes | |
| Compliance support | hipaa |
Listed together in Best Online Fax Services