FusionAuth vs Duo Security: Identity & Access Management Comparison (2026)

An independent side-by-side comparison of FusionAuth and Duo Security for identity & access management buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each vendor is cited by major AI engines when real buyers ask identity & access management questions. Tracked across ChatGPT, Perplexity, Gemini, and Claude over the last 90 days. Methodology.

ChatGPT
FusionAuth: tracking…
Duo Security: tracking…
Perplexity
FusionAuth: tracking…
Duo Security: tracking…
Gemini
FusionAuth: tracking…
Duo Security: tracking…
Claude
FusionAuth: tracking…
Duo Security: tracking…

Probes run hourly; each (engine × query) combo retests every ~3 days. Fresh categories may show "tracking…" until probes complete.

Pricing

FusionAuth
Starting price
Free tier
fusionauth.io
Duo Security
Starting price
Free tier
duo.com

Key Features

FusionAuth

Feature data is being indexed.

Duo Security

Feature data is being indexed.

When to choose FusionAuth

Choose FusionAuth if your team prioritizes its strengths over Duo Security's. Full guidance populates as FusionAuth's feature data is indexed.

When to choose Duo Security

Choose Duo Security if your team prioritizes its strengths over FusionAuth's. Full guidance populates as Duo Security's feature data is indexed.

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