| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 3 |
| Spec score · Multi-Factor Authentication Software | 8.1 (#12) | 7.6 (#31) |
| Integrations | IDmelon SSO supports SAML 2.0 and OIDC and can integrate with Microsoft Entra ID, ADFS, Okta, Ping Identity, and Google Workspace. | The maker names firewalls, Apache HTTP Server, and OpenSSH as examples of systems that implement RADIUS. |
| Purpose | IDmelon lets organizations use existing ID badges, NFC cards, key fobs, and smartphones as manageable FIDO security keys for workforce logins. | multiOTP is RADIUS-based and can be used for VPN authentication, SSL-VPN connections, and extranet portals. |
| Support | The contact page directs product support requests to its technical team and provides a Vancouver, Canada office address. | Pro includes mail support and firmware updates for the current major version; Enterprise renewal is needed for new firmware updates and mail support. |
