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Head-to-head · Authenticator Apps

Authy vs Duo Mobile

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Authy #3 in Authenticator Apps 9.1/10 Free plan Free plan✓ 2 of 4 features Visit Authy
Duo Mobile #5 in Authenticator Apps 8.9/10 Free plan · 30-day trial Free planFree trial✓ 3 of 4 features Visit Duo Mobile

Authy leads on 0 checks, Duo Mobile on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAuthy · 9.1/10
  • Free planboth
  • Free trialonly Duo Mobile
  • Most featuresDuo Mobile · 3 of 4

Authy scores higher on our rubric for authenticator apps: 9.1 against 8.9 out of 10; our editors rank them #3 and #5.

Authy is the better fit for mobile users needing multi-device token sync. Duo Mobile is the better fit for teams needing push MFA plus third-party OTPs.

  • Authy fits best

    Mobile users needing multi-device token sync

  • Duo Mobile fits best

    Teams needing push MFA plus third-party OTPs

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Side by side

Feature Authy 9.1/10 Visit ↗ Duo Mobile 8.9/10 Visit ↗
At a glance
Editor score 9.1 8.9
Ranking #3 in Authenticator Apps #5 in Authenticator Apps
Best for Mobile users needing multi-device token sync Teams needing push MFA plus third-party OTPs
Pricing model Free Free plan + paid
Starting price Free $3/user/mo
Free plan ✓ ✓
Free trial — 30 days
Deployment Mobile Mobile
Platforms iOS, Android iOS, Android
Support Tickets, Docs Docs
Built for Solo, Small business Solo, Small business, Mid-market, Enterprise
Features Authy 2/4 · Duo Mobile 3/4
Push approvals Not checked yet ✓ (best)
Encrypted backup ✓ ✓
Multi-device sync ✓ (best) Not checked yet
Team administration Not checked yet ✓ (best)
Specs
Code type Totp Totp
Supported platforms iOS, Android iOS, Android
Our review
Pros
  • Generates TOTP codes offline, including after accounts are added by QR code
  • Encrypted cloud backup and restore with synchronization across mobile devices
  • PIN, password and biometric protection plus device management controls
  • Supports one-tap push approvals plus TOTP and HOTP codes
  • Encrypted backup, Instant Restore, and Security Checkup add useful safeguards
  • Administrative device enrollment and management support team deployments
Cons
  • Supported product is focused on iOS and Android mobile apps
  • Does not provide push approvals for account sign-ins
  • No team administration features for managed organization use
  • Backup and restore depend on operating system and device settings
  • Backup restoration does not work across platforms
  • Administrative controls are provided through the broader Duo service
Our verdict

Authy is a free two-factor authentication app for individuals who need time-based one-time passcodes across supported mobile devices. It adds accounts by scanning QR codes and generates TOTP codes offline, making it suitable for services…

Read the review →

Duo Mobile is a smartphone authenticator for individuals and organizations using Cisco Duo. It combines one-tap push approval and denial with TOTP and HOTP passcode generation, covering both Duo-protected applications and compatible…

Read the review →
  1. AuthyAuthenticator Apps 9.1Free plan
  2. Duo MobileAuthenticator Apps 8.9Free plan · 30-day trial

Strengths and trade-offs

  • Authy — where it wins

    • Generates TOTP codes offline, including after accounts are added by QR code
    • Encrypted cloud backup and restore with synchronization across mobile devices
    • PIN, password and biometric protection plus device management controls

    Where it doesn't

    • Supported product is focused on iOS and Android mobile apps
    • Does not provide push approvals for account sign-ins
    • No team administration features for managed organization use

  • Duo Mobile — where it wins

    • Supports one-tap push approvals plus TOTP and HOTP codes
    • Encrypted backup, Instant Restore, and Security Checkup add useful safeguards
    • Administrative device enrollment and management support team deployments

    Where it doesn't

    • Backup and restore depend on operating system and device settings
    • Backup restoration does not work across platforms
    • Administrative controls are provided through the broader Duo service
  • Authy9.1/10 · Free plan

    A focused free authenticator for mobile users who need synced TOTP tokens.

    Visit AuthyFull verdict →
  • Duo Mobile8.9/10 · Free plan · 30-day trial

    A flexible authenticator for Duo push approvals, third-party OTPs, and team device management.

    Visit Duo MobileFull verdict →

More comparisons

All authenticator apps comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update