FusionAuth may suit teams managing end users at scale that need configurable authentication and authorization.
Free plan Free trial From $162 a month, billed yearly AndroidiPhone & iPadWebWindowsMacLinux+2
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Best OAuth Server Software 2026
Every product here is ranked by Samsung Mobile US Press's record score: what its maker publishes about it, where it runs (Android first), whether it is free to try, and how recently the facts were read.
02
Google Cloud Identity
It suits organizations that need to manage identities, app access, and devices from a central console.
AndroidiPhone & iPadWeb+4 Record6.6 Visit
03
Duende IdentityServer
AndroidiPhone & iPadWeb+5 Record6.2 Visit
04
Authgear
Authgear suits teams building web or mobile apps that need authentication, identity management or SSO.
AndroidiPhone & iPadWeb+2 Record6.0 Visit
05
Ory
Ory fits teams building customer, partner, machine, or AI-agent identity systems across cloud or self-hosted environments.
WebWindowsMac+3 Record6.0 Visit
6
authentik
WebWindowsMac+3 $5 a month, billed yearly Record5.6 Visit authentik suits homelab users and organizations needing self-hosted identity controls across applications, devices, and APIs.
7
Kinde
AndroidiPhone & iPadWeb+1 $25 a month Record5.6 Visit Kinde is aimed at SaaS founders, product teams, and engineers who want authentication, billing, and feature flags in one cloud platform.
9
Okta Customer Identity Cloud
AndroidiPhone & iPadWeb+4 $35 a month Record5.6 Visit Auth0 may suit organizations building customer sign-in and access workflows across applications, including teams that need single sign-on, passwordless methods, or…
11
Descope
AndroidiPhone & iPadWeb+2 $249 usage-based Record5.4 Visit Descope suits teams building B2C or B2B applications that need authentication, user management or authorization.
14
Auth0 Guardian
AndroidiPhone & iPad $35 a month Record5.3 Visit Guardian suits people completing MFA on an iOS or Android device and organizations adding Guardian capabilities to their own apps.
16
Logto
AndroidiPhone & iPadWeb+3 $24 a month Record5.3 Visit Logto fits developers building consumer apps, SaaS products, or enterprise applications that need authentication and authorization.
18
Frontegg
AndroidiPhone & iPadWeb+1 Free plan Record5.0 Visit Frontegg is aimed at developers and architects building customer-facing products, as well as infosec, customer success, support and product teams.
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