4SecureMail vs Soverin
| 4SecureMail | Soverin | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | €3.25/mo |
| Open source | No | No |
| Platforms | Web | Web, iOS, Android |
| Free plan | No | No |
| Paid from | 8.24 /mo | — |
| Encryption scope | transport_only | — |
| Custom domains | Yes | — |
| Mailbox storage | 0.5 GB | 25 GB |
| Email aliases | 3 aliases | — |
| IMAP support | Yes | — |
| Private calendar | No | — |
Both are listed in Best Private Email Services. On Inferse, 4SecureMail scores higher on our published basis.