ARK2FA vs Duo Mobile
| ARK2FA | Duo Mobile | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | Yes |
| Paid from | — | $3/mo |
| Open source | No | No |
| Platforms | Web, Windows, Linux | Android, iOS |
| Free plan | No | Yes |
| Deployment | self_hosted | — |
| Supported factors | SMS, OTP, TOTP, HOTP, authenticator apps | — |
| App integration methods | ADFS MFA adapter, RADIUS proxy, LDAP, configurable HTTP/SMPP gateway | — |
| Paid from | — | 3 /user/mo |
Both are listed in Best Multi-Factor Authentication Software. On Inferse, Duo Mobile scores higher on our published basis.