Flex Email-to-Fax vs InterFAX
| Flex Email-to-Fax | InterFAX | |
|---|---|---|
| Free trial | Yes | |
| Platforms | Web | Android, api, iOS, Web, Windows |
| Virtual fax number | Yes | Yes |
| Free plan | No | |
| Inbound faxing | Yes | |
| Mobile apps | No | |
| International faxing | Yes | |
| Compliance support | hipaa |
Listed together in Best Online Fax Services