18.3
FusionAuth is a Customer Identity and Access Management server for authentication, authorization, and user management.
Free planAndroidiOSWeb
Best Authentication Software in 2026
Authentication software helps manage sign-in and access for applications and services. The comparison covers authentication protocols, MFA methods, passkey sign-in, directory sync and deployment. Check the platform list before choosing a tool. If you need phone access, confirm that an Android app is available, then compare web, iOS, Windows, macOS or API support for your setup.
28.3
Google Cloud Identity centrally manages users and groups as a cloud identity service.
Free planAndroidiOSWeb
38.1
WorkOS provides APIs and hosted tools for SaaS companies adding enterprise capabilities to their applications.
Free planAndroidiOSWeb
- 4
1Password
1Password is a password manager for Android, iOS, Linux, macOS, Windows, and the web.
AndroidiOSWebAPI7.9From $2.99 a month - 5
Okta Customer Identity Cloud
Okta Customer Identity Cloud, also known as Auth0, helps organizations provide secure access to applications for users.
Free planAndroidiOSWebAPI7.7From $35 a month - 6
Descope
Descope is a customer and agentic identity platform for authentication, user management, authorization, and identity journeys.
Free planAndroidiOSWebAPI7.6From $249 a month - 7
Supabase
Supabase is a backend platform built around a Postgres database, with services for authentication, file storage, realtime data, and server-side functions.
Free planAndroidiOSWebAPI7.6From $25 a month - 8
Clerk
Clerk provides full-stack authentication and user management for applications, including Organizations and Billing.
Free planAndroidiOSWebAPI7.5Free plan - 9
Microsoft Defender for Business
AndroidiOSAPImacOS7.5 - 10
Logto
Logto provides identity and access management for modern apps and SaaS products, covering authentication and authorization.
Free planAndroidiOSWebAPI7.4From $24 a month - 11
IBM Verify
AndroidiOSWebAPI7.3From $15,899.29 a year - 12
MojoAuth
MojoAuth provides passwordless authentication for consumer apps through one API for customer sign-in across web and mobile.
Free planAndroidiOSWebAPI7.3From $120 a month - 13
authentik
authentik is an open-source, self-hostable identity and access management product for organizations managing workforce and customer access.
Free planWebAPILinuxmacOS7.2From $5 a month - 14
Frontegg
Frontegg provides customer identity and access management for customer-facing applications.
Free planAndroidiOSWebAPI7.1Free plan - 15
Stytch
Stytch is an identity platform for applications used by people and AI agents, bringing authentication, authorization, and security tools together.
Free planAndroidiOSWebAPI7.0Free plan - 16
ZITADEL
ZITADEL provides identity and access management for customers, employees, devices, and services.
Free planWebAPILinuxmacOS7.0From $100 a month - 17
Authsignal
AndroidiOSWebAPI6.9From $499 a month - 18
Entrust Identity App
Entrust Identity App provides one-time passcodes for signing in to websites, VPNs, and other online resources, and can verify transactions by showing…
Free planAndroidiOSmacOSWindows6.9Free plan - 196.9
- 20
Keycloak
Keycloak is open-source identity and access management software that adds authentication to applications and secure services, leaving those systems…
Free planWebAPILinuxSelf-hosted6.5Free plan - 21
Amazon Cognito
Amazon Cognito provides sign-up, sign-in, access control, and brokered AWS service access for web and mobile applications.
AndroidiOSWebAPI6.2 - 22
Authelia
Authelia is an open-source authentication and authorization server and portal that adds multi-factor authentication and single sign-on to applications.
Free planWebAPILinuxSelf-hosted6.2Free plan - 23
SecureAuth Workforce Authority
SecureAuth Workforce Authority is an identity and access product for securing workforce users, devices, and applications across modern and legacy environments.
AndroidiOSWebLinux6.2 - 24
Apereo CAS
Apereo CAS is a free, open-source identity provider and middleware for web authentication and authorization.
Free planWebAPISelf-hosted6.1Free plan - 25
Gluu Flex
WebAPILinuxSelf-hosted6.1
Choosing well
Check Android and other platforms
Start with the platforms you need. The category includes web, Android, iOS, API, Windows and macOS support, but availability can differ by tool.
For Xiaomi, Redmi or POCO use, verify Android support before comparing other platform options.
Compare free and paid plans
A free plan is available from tools in this category, while paid plans use different starting prices and billing units. Compare the published paid-from price with your expected use.
Check whether a free trial is offered and what access it provides during the trial.
Review sign-in methods
Compare the authentication protocols and MFA methods a tool supports. Passkey sign-in can matter if you want a passwordless option.
Match the available methods to the sign-in flow you need for your applications and users.
Look at directory sync
Directory sync can affect how identities and access are kept aligned. Check whether the tool supports the directory connection your setup requires.
Check deployment fit
Deployment is a comparison point for this category. Review how a tool can be deployed and whether that approach fits your services, devices and administration needs.
Questions people ask
Do these authentication tools have Android apps?
Android is one of the platforms represented in this category, but support varies by tool. Check the individual platform details before choosing.
Can I find a free authentication plan?
Yes. A free plan is offered by tools in this category. Compare its limits and the published paid-from price before committing.
Are free trials available?
A free trial is offered by tools in this category. Check the individual trial terms and duration.
What sign-in methods should I compare?
Compare supported authentication protocols, MFA methods and passkey sign-in. Choose the combination that matches your applications and users.
Which platforms are covered?
The category includes web, Android, iOS, API, Windows and macOS support. Confirm the exact platforms for the tool you are considering.