Duo Mobile vs Proton Authenticator
| Duo Mobile | Proton Authenticator | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | Yes | No |
| Paid from | $3/mo | Free |
| Open source | No | No |
| Platforms | Android, iOS | Android, iOS, Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Paid from | $3/user/mo | — |
| Code type | totp | totp |
| Push approvals | Yes | — |
| Encrypted backup | Yes | Yes |
| Team administration | Yes | — |
| Supported platforms | iOS, Android | iOS, Android, macOS, Windows, Linux |
| Multi-device sync | — | Yes |
Both are listed in Best Authenticator Apps. On Freedom251, Proton Authenticator scores higher on our published basis.