MailFlow vs Serif
| MailFlow | Serif | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | $30/mo |
| Open source | No | No |
| Platforms | Web | Web, Windows, macOS, iOS |
| Free plan | Yes | No |
| Inbox triage | Yes | — |
| AI reply drafting | Yes | — |
| Automatic sending | No | — |
Both are listed in Best AI Email Assistants. On Samsung Mobile US Press, Serif scores higher on our published basis.