Duo Mobile is an authentication app for securing company and personal data on iOS and Android phones and tablets.
Alternatives to OpenOTP Authentication Server
OpenOTP Authentication Server combines multi-factor authentication with identity management in cloud or on-premise deployments. It supports mobile push, certificates, magic links, YubiKey, FIDO2 passkeys, software tokens, federated SAML, OIDC and OAuth access, directory integrations, adaptive policies, passwordless authentication and device trust controls. EAP network access control, mobile signatures and badging extend its role beyond login. Windows, macOS and Linux plugins…
HYPR Authenticate provides passwordless, phishing-resistant multi-factor authentication using passkeys.
LoginTC is a multi-factor authentication platform that adds a second verification step when people access applications and systems.
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IBM Verify
AndroidiOSWebAPI7.3From $15,899.29 a year - 5

Protectimus MFA
Protectimus MFA provides multi-factor authentication for teams and customers, with cloud and on-premise deployment options.
Free planAndroidiOSWebAPI7.3From $2 a month - 6
miniOrange Multi-Factor Authentication
miniOrange Multi-Factor Authentication requires users to verify their identity with two or more factors before accessing an account or system.
Free planWebLinuxmacOSSelf-hosted7.2From $2 a month - 7
Spriv Adaptive MFA
Spriv Adaptive MFA adds verification to logins across web, Windows, Linux, iOS, and Android environments.
Free planAndroidiOSWebAPI7.2From $7 a month - 8

WatchGuard AuthPoint
WatchGuard AuthPoint is a cloud-based multi-factor authentication service that verifies users before they access computers, VPNs, cloud services, and applications.
AndroidiOSWebAPI7.2 - 9
WiKID
WiKID provides an on-premises two-factor authentication solution for organizations.
Free planAndroidiOSWebAPI7.2From $240 a year - 10
SurePassID
AndroidiOSAPILinux7.0From $48 a year - 11
Entrust Identity App
Entrust Identity App provides one-time passcodes for signing in to websites, VPNs, and other online resources, and can verify transactions by showing…
Free planAndroidiOSmacOSWindows6.9Free plan - 12

LinOTP
LinOTP is an open-source platform for multi-factor authentication, built to protect digital identities and transactions.
Free planAndroidiOSWebAPI6.9Free plan - 13
DigitalPersona Mobile
DigitalPersona Mobile is an authenticator app for Android and iOS used with HID DigitalPersona.
AndroidiOSAPISelf-hosted6.8 - 14

Symantec IT Management Suite
Symantec IT Management Suite manages, patches, and remediates application and operating system configurations across desktops, laptops, and servers…
WebAPILinuxmacOS6.8 - 15

privacyIDEA
privacyIDEA is an open-source, modular authentication server for adding two-factor authentication to applications, VPNs, remote access, SSH, websites, and web portals.
AndroidiOSWebAPI6.7From €165 a month - 16

SecurEnvoy MFA
SecurEnvoy MFA verifies identity before granting access, combining knowledge, possession, and biometric factors.
AndroidiOSWebAPI6.7 - 17

Deepnet DualShield MFA Platform
AndroidiOSWebAPI6.6 - 18
LiveEnsure
LiveEnsure provides contextual authentication for websites, apps, and sessions through a cloud service.
Free planAndroidiOSWebAPI6.6Free plan - 19
V-FRONT
AndroidiOSWebAPI6.6From $5 a month - 20

CryptoPhoto
CryptoPhoto provides login authentication and transaction signing through mutual authentication.
AndroidiOSWebAPI6.5From $1 a year - 21
PingID
PingID is an identity and access management service for adding multifactor authentication to sign-ins.
AndroidiOSWebmacOS6.5From $3 a month - 22
Pointsharp MFA
Pointsharp MFA adds authentication factors beyond passwords to help protect users, applications, and infrastructure across on-premises, hybrid, and cloud environments.
AndroidiOSWebLinux6.5 - 23

IDmelon
IDmelon lets organizations turn existing ID badges, NFC cards, key fobs, and smartphones into manageable FIDO security keys for workforce logins.
AndroidiOSWebAPI6.4 - 24
Powertech Multi-Factor Authentication
Powertech Multi-Factor Authentication adds extra verification to IBM i systems, including AS/400 and iSeries.
AndroidiOSWebAPI6.3 - 25

Authelia
Authelia is an open-source authentication and authorization server and portal that adds multi-factor authentication and single sign-on to applications.
Free planWebAPILinuxSelf-hosted6.2Free plan - 26
AuthLite
LinuxmacOSWindows6.2 - 27

ESET Secure Authentication
AndroidiOSWebAPI6.2 - 28
RSA Authenticator (SecurID)
RSA Authenticator (SecurID) is an authentication system for organizations securing on-premises environments and supporting access to cloud and on-premises applications.
AndroidiOSmacOSSelf-hosted6.2 - 29

Secret Double Octopus
Secret Double Octopus is a workforce authentication platform for multi-factor and passwordless access to desktops, web and corporate apps, and privileged systems.
AndroidiOSWebAPI6.2 - 30
GoTrust ID
GoTrust ID is a FIDO-certified passwordless authentication platform for enterprise use across on-premises, hybrid, and cloud environments.
AndroidiOSWebLinux6.0

