Limits, pricing history. Verified November 2026. Last updated 2026-11-11.
duo.com's free tier offers Two-factor authentication (2FA) for website or app… It's stable — the change we last considered recording was refused on 2026-10-21, and we read the page again on 2026-11-11 and confirmed the terms above.
The day we last read the vendor's page, and the day we last confirmed the terms we publish.
Free Tier Details
Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens.
We read that on 2026-11-11 from https://duo.com/, and our check recorded: the page names duo.com as "duo" and states amounts, none of which we matched to the terms we publish.
From duo.com, read 2026-11-11:
Duo Free for teams of 10 or less
When You'll Outgrow duo.com's Free Tier
When your usage exceeds the free tier limits, you'll need to upgrade.
Pricing Change History (0 recorded)
No recorded pricing changes for duo.com. This is a good sign — stable pricing.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
Yes, duo.com offers a free tier: Free. Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens.
What is duo.com's free tier?
duo.com's free tier is called "Free". Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens.
Is duo.com's free tier reliable?
duo.com's free tier is considered stable.
Is duo.com's free tier good for production?
duo.com's free tier can be suitable for small production workloads and side projects. We rate it stable and it offers Two-factor authentication (2FA) for website or app…, so it's a reasonable starting point. Monitor your usage against the limits and have an upgrade plan ready.
What changed in duo.com's pricing?
We refused the change we last considered recording for duo.com on 2026-10-21, then read the page again on 2026-11-11 and confirmed the terms we publish for it.
When will I outgrow duo.com's free tier?
When your usage exceeds the free tier limits, you'll need to upgrade. When you outgrow the free tier, evaluate paid plans against alternatives — sometimes a competitor's free tier covers what you need.