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Duo Security

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Multi-factor authentication for enterprises

SecurityIdentity & Access
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Reviews onG2Capterra
1050 reviews tracked

The Bottom Line

Entry price

From $3/mo (free plan available)

Biggest pro

Enterprise MFA leader

Biggest con

Expensive

TL;DR - Duo Security

  • Duo Security is a multi-factor authentication platform for securing access to applications
  • It provides 2FA, device trust, and single sign-on with easy deployment across any app
  • Free up to 10 users, paid plans from $3/user/month
Pricing: Free plan available
Best for: Growing teams
4.6/5 across review platforms

What is Duo Security?

Editorial review
Duo Security protects access with multi-factor authentication that's actually usable. Push notifications to phones, hardware keys, biometrics-2FA that doesn't frustrate users. The user experience is thoughtful. Device trust policies add security. Cisco backing provides enterprise credibility. Organizations implementing MFA choose Duo because it balances security with user experience.

Available on: Web

how we evaluateSourceduo.com ↗

Pros & Cons

Pros

  • Enterprise MFA leader
  • Good security
  • Easy setup
  • Many integrations
  • Cisco backing

Cons

  • Expensive
  • Cisco pricing complexity
  • Per-user costs
  • UI dated
  • Better free alternatives

Ratings Across the Web

4.6(1,050 reviews)
G2503 reviews
4.5/5
Capterra547 reviews
4.7/5

Ratings aggregated from independent review platforms. Learn more

Key Features

Two-factor authenticationDevice trustAdaptive accessSingle sign-onRemote accessEndpoint security

Pricing Plans

Free Trial

Pricing checked Jul 5, 2026

Free

Free

Up to 10 users

  • 2FA for 10 users
  • Mobile app
  • Basic integrations

Essentials

$3/per user/month

Small teams

  • Unlimited users
  • Single sign-on
  • User self-service
  • Basic policy

Advantage

$6/per user/month

Growing companies

  • Adaptive MFA
  • Device trust
  • VPN integration
  • Phishing detection

Premier

$9/per user/month

Advanced security

  • All Advantage
  • Zero trust
  • Risk-based auth
  • Dedicated support
Calculate your costView full pricing

How Duo Security's pricing compares

At $3/mo, Duo Security is the most affordable of its 5 direct competitors.

Duo Security
$3
LastPass
$3
Ping Identity
$3
OneLogin
$4
Okta
$6
Auth0
$240

Entry paid plan, monthly. Pricing checked Jul 5, 2026.

Reviews

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4.6/5

Across 1,050 verified user reviews on Capterra, G2

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Best Duo Security Alternatives

Top alternatives based on features, pricing, and user needs.

View full list →
LastPass logo
LastPassFreemium

Securely store, autofill, and share passwords across all your devices

4.5
Okta logo
OktaPaid

Enterprise identity management

4.6
Auth0 logo
Auth0Freemium

Identity platform for developers

4.4
OneLogin logo
OneLoginPaid

Identity and access management platform

4.5
CyberArk logo
CyberArkPaid

Secure every identity across human, machine, and AI with intelligent privilege controls.

3.2
Ping Identity logo
Ping IdentityPaid

Enterprise identity security solutions

4.5
See all security tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All Duo Security alternatives6+ tools ranked, pricing + verdict per pickDuo Security vs LastPassHead-to-head: features, pricing, who winsDuo Security vs OktaHead-to-head: features, pricing, who winsDuo Security vs Auth0Head-to-head: features, pricing, who wins

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Duo Security FAQ

How does Duo Security enhance enterprise security?

Duo Security protects access with multi-factor authentication, balancing strong security with a user-friendly experience. It offers various authentication methods like push notifications, hardware keys, and biometrics to secure logins. Device trust policies further add to the security posture of an organization.

Which teams benefit most from implementing Duo Security?

Duo Security is ideal for enterprise-level organizations that need to secure access for a large user base without compromising productivity. It's particularly well-suited for IT and security teams looking for a robust MFA solution with extensive integrations and enterprise credibility.

How does Duo Security compare to Okta for multi-factor authentication?

Duo Security is recognized as an enterprise MFA leader, similar to Okta, focusing on balancing security with user experience through methods like push notifications and biometrics. However, Duo is noted for its easy setup and many integrations, backed by Cisco's enterprise credibility.

What kind of trade-offs should organizations consider when choosing Duo Security?

Organizations should be aware that Duo Security can be expensive, with per-user costs and potential pricing complexity due to its Cisco backing. Some users also find the user interface to be dated, and there are free alternatives available for basic MFA needs.

How is Duo Security priced for businesses?

Duo Security offers a free tier for basic usage, allowing organizations to start with multi-factor authentication without initial cost. For more extensive features and higher usage, paid plans are available, which typically involve per-user costs.

Can Duo Security integrate with existing IT infrastructure?

Yes, Duo Security is known for offering many integrations, allowing it to connect with a wide range of existing IT systems and applications. This facilitates a smoother deployment and ensures that MFA can be applied across various access points within an enterprise.

Source: duo.com

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