Instead of Duo Mobile
Duo Mobile alternatives
Duo Mobile pairs sign-in verification with company access controls. It supports one-tap Duo Push approvals, time-based passcodes, and third-party TOTP accounts. Duo Restore backs up and restores Duo-protected accounts on a replacement Android or iOS device, and Security Checkup gives users a mobile-device security score. The app also supports biometrics and passcodes, works on iOS and Android phones and tablets, and supports many smart watches. Duo’s wider MFA service can connect to company systems and set access policies using factors such as role, location, application, network, and device health.
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Proton Authenticator
by Proton AuthenticatorFree plan AndroidiPhoneLinux+2Free TOTP codes with encrypted backup and desktop apps — Proton Authenticator adds encrypted backup, multi-device sync, and Linux, macOS, and Windows apps beyond Duo Mobile’s iOS and Android availability.
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Yubico Authenticator
by Yubico AuthenticatorFree plan AndroidiPhoneLinux+2TOTP and HOTP codes across desktop and mobile — Yubico Authenticator supports HOTP as well as TOTP and desktop platforms, but lacks Duo Mobile’s push approvals, encrypted backup, and team administration.
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Bitwarden
by Bitwarden Inc.Free plan Open source AndroidAPIExtension+6Password management alongside authenticator alternatives — Bitwarden combines password, note, credit-card, and identity storage with passkey management and generators, unlike Duo Mobile’s MFA focus.
Free · Premium $1.65/mo billed annually Visit site - 5
Zoho OneAuth
Free plan AndroidiPhoneMac+1Free MFA for Zoho work accounts — Zoho OneAuth adds MFA for employees’ Zoho work accounts and offers sync and backup across mobile and desktop, while Duo connects to broader company systems.
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Google Authenticator
Free plan AndroidiPhoneFree offline codes for supported sites and apps — Google Authenticator generates TOTP and HOTP codes offline and supports QR setup, while Duo Mobile adds push approvals and company access controls.
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SAASPASS Authenticator
by SAASPASS AuthenticatorFree plan AndroidExtensioniPhone+4Authenticator with team administration and broad platform support — SAASPASS adds TOTP and HOTP, sync, backup, team administration, and browser and desktop platforms beyond Duo Mobile’s iOS and Android apps.
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miniOrange Authenticator
Free plan AndroidAPIiPhone+5 - 12
Authy
Free plan AndroidiPhone - 13
Microsoft Authenticator
Free plan AndroidiPhone - 14
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2FAS Auth
Free plan AndroidExtensioniPhone - 16
TwoFac
Free plan AndroidExtensioniPhone+4 - 17
Open Authenticator
Free plan AndroidiPhoneLinux+3 - 18
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SelfHostAuth
Free plan AndroidAPIExtension+6 - 21
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For someone who only needs codes, that company-focused scope and its paid plans may be unnecessary: Duo offers a free plan for up to 10 users, while paid plans start at $3 per user per month. Its app platforms are iOS and Android. The alternatives differ in desktop and browser availability, sync and backup, code types, offline code generation, or password storage. Before switching, consider whether you rely on Duo Push, organization-managed controls, or integrations, and compare the replacement’s platforms and account features with your needs.