HomeAppsBusinessDuo MobileApps like Duo Mobile Here are some great alternatives to Duo Mobile by Duo Security LLC : Duo Number - 2nd Phone Line ★4.1 UserLock Push ★4.5 Group2FA: 2FA Passcode Sharing ★4.7 SafeNet MobilePASS+ ★4.4 SecureAuth Authenticate ★3.2 Two Factor Authenticator App ★4.1 Multifactor ★3.6 Authenticator - Authkey 2FA ★4.1 Salesforce Authenticator ★4.5 MojeID Klíč ★3.4 Authenticator - 2FA App ★4.0 My Authenticator App ★4.1 Authenticator App - 2FA ★4.5 Evo Mobile ★4.7 ESET Secure Authentication ★4.2 Authenticator App ★4.4