MailFlow vs Mailtwine
| MailFlow | Mailtwine | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $12/mo | — |
| Open source | No | No |
| Platforms | api, self-hosted, Web | Android, iOS, Linux, macOS, Web, Windows |
| Free plan | Yes | No |
| Inbox triage | Yes | Yes |
| AI reply drafting | Yes | Yes |
| Automatic sending | No | Yes |
| Thread summaries | — | Yes |
| Follow-up actions | — | Yes |
Both are listed in Best AI Email Assistants. On Samsung Mobile US Press, Mailtwine scores higher on our published basis.