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Amazon Cognito in 2026: Everything That Changed, for Teams Who Wrote It Off

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October 26, 2026

8 min read

Cognito spent two years fixing the reasons people left it: new Lite, Essentials and Plus tiers with managed login and passkeys, then in 2026 multi-Region replication, password-hash import, client-secret rotation, federation triggers, self-service rate limits and machine-to-machine tokens without a domain. What changed, what it costs, and whether to look again.

Amazon Cognito
Identity
Authentication
Passkeys
CIAM

Why people left

For years the complaints about Cognito were consistent: a hosted UI that looked dated and could barely be styled, no passkeys, painful migrations in (you could not bring password hashes) and out, a single Region with no good answer for regional outages, and rough edges around machine-to-machine and federation. Many teams paid Auth0 or built their own to avoid it. Most of those reasons are now gone.

November 2024: the reset

Cognito moved to three feature tiers. Lite keeps the basics at the lowest price. Essentials — the default for new user pools — adds managed login (a new, properly brandable hosted sign-in experience), passwordless sign-in with passkeys and email or SMS one-time codes, and access-token customisation. Plus adds threat protection: compromised-credential detection and adaptive authentication.

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2026: the gaps closed

When

What

Why it matters

January 29

Inbound federation Lambda triggers

Transform SAML and OIDC attributes before they are stored — including oversized group claims that used to break sign-in

February

Client secret rotation and custom secrets

Two active secrets per app client, so rotation no longer means downtime

June 3

Multi-Region replication (Essentials and Plus)

A synchronised standby user pool in another Region; existing users keep signing in during a regional failover

July 15

Import users with password hashes

bcrypt, scrypt, Argon2id and PBKDF2-SHA256 — users arrive and sign in with their existing passwords

July

Self-service provisioned API rate limits

Raise or lower limits on demand for launches and spikes

August 31

GetClientToken for machine-to-machine

App clients get access tokens through the SDK or API, without a user pool domain; works with WAF and PrivateLink

October

Multi-Region replication in GovCloud (US)

The same resilience for government workloads

From AWS What's New announcements, 2026.

What it costs now

  • Lite and Essentials: the first 10,000 monthly active users free. Essentials is $0.015 per MAU after that; Lite $0.0055, falling to $0.0046 above 100,000.

  • Plus: $0.020 per MAU, no free tier.

  • Users who sign in through SAML or OIDC federation: 50 free, then $0.015 per MAU.

  • Multi-Region replication: an extra $0.0045 per MAU per replica on Essentials, and 30% more on machine-to-machine token requests.

Multi-Region, honestly

Replication keeps users, credentials, configuration and federation set-up in sync with a standby pool, and both Regions stay active. You decide when to fail over — with your own health checks and DNS — and during failover existing users sign in normally but new registrations and profile updates are unavailable. Lambda triggers, email and SMS sending, WAF rules and log streaming must be set up in the second Region yourself before you need them. It is a real answer to "what happens to sign-in if us-east-1 has a bad day", provided you rehearse it.

Should you look again?

If you are on AWS and building a consumer or prosumer product, yes: Essentials with managed login and passkeys is a credible default, and password-hash import makes moving in a data job rather than a forced password reset. If you sell to enterprises and need self-service SSO configuration and SCIM, a B2B-focused provider still does more for you out of the box. Either way, keep your own user IDs as the primary key so the choice stays reversible.

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As of October 26, 2026. Provided as is, for general information, and accurate to the best of our knowledge on the date shown. Not legal, compliance, tax, financial or other professional advice. Prices, limits and vendor services change; check current vendor documentation before relying on anything here. Terms of use.