gpg4o vs Secure Message
| gpg4o | Secure Message | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | €99.95/mo | — |
| Open source | No | No |
| Platforms | Windows | Web, Linux |
| Free plan | Yes | Yes |
| Secure delivery | attachment | link |
| Recipient verification | identity | — |
| Message expiry | No | Yes |
| Outlook integration | Yes | — |
| Gmail integration | No | — |
| Admin access controls | Yes | Yes |
Both are listed in Best Email Encryption Software, Best File Encryption Tools. On Freedom251, gpg4o scores higher on our published basis.