Duo Security

Name: Duo Security
Brand: Duo Security
Price: 3 USD
Rating: 4.6 (1051 reviews)

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Multi-factor authentication for enterprises

From $3/mo (free plan available)

Freemium Security Identity & Access

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4.6 (1,051 across the web)

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Reviews on G2 Capterra

1,051 reviews tracked

The Bottom Line

Updated May 26, 2026

Price: From $3/mo (free plan available). Compare plans

Key facts

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

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

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

Louis Corneloup Updated May 26, 2026 · how we evaluate Source duo.com ↗

Ratings Across the Web

4.6 (1,051 reviews)

Duo Security holds an aggregate rating of 4.6 out of 5 from 1,051 reviews across G2 and Capterra, last checked September 17, 2026.

Ratings aggregated from independent review platforms. Learn more

Key Features

Two-factor authentication
Device trust
Adaptive access
Single sign-on
Remote access
Endpoint security

Pricing Plans

Free Trial

Pricing checked Oct 4, 2026

Duo Security plans and prices, checked October 2026
Plan	Price	Details
Free	$0	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 +1 more Show less Basic policy
Advantage	$6/per user/month	Growing companies Adaptive MFA Device trust VPN integration +1 more Show less Phishing detection
Premier	$9/per user/month	Advanced security All Advantage Zero trust Risk-based auth +1 more Show less Dedicated support

Calculate your cost View full pricing

Is Duo Security worth the price?

Good value

Duo Security's pricing is fair, offering a generous free tier for up to 10 users.

The Essentials tier at $3/user/month provides good value for small teams, while the jump to Advantage at $6/user/month for adaptive MFA is competitive. This pricing structure is best for businesses of all sizes looking for scalable and robust MFA solutions.

Full Duo Security pricing: every plan, hidden costs and alternatives

How Duo Security's pricing compares

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

Duo Security

$240

Entry paid plan, monthly, per user. Pricing checked Oct 4, 2026.

Reviews

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4.6/5

Across 1,051 verified user reviews on Capterra, G2

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Best Duo Security Alternatives

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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 alternatives 6+ tools ranked, pricing + verdict per pick Duo Security vs LastPass Head-to-head: features, pricing, who wins Duo Security vs CyberArk Head-to-head: features, pricing, who wins Duo Security vs Auth0 Head-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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