OpenOTP Authentication Server vs Zero-TOTP
| OpenOTP Authentication Server | Zero-TOTP | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Android, api, iOS, Linux, macOS, self-hosted, Web, Windows | iOS, self-hosted, Web |
| Free plan | Yes | Yes |
| Code type | — | totp |
| Push approvals | — | No |
| Encrypted backup | — | Yes |
| Team administration | — | No |
| Supported platforms | — | Web app; self-hosted web app; iOS and CLI apps are not currently in development |
Both are listed in Best Authenticator Apps. On Inferse, OpenOTP Authentication Server scores higher on our published basis.