What are some alternatives?
When comparing Stormpath and LoginRadius, you can also consider the following products
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Okta - Enterprise-grade identity management for all your apps, users & devices
OneLogin - On-demand SSO, directory integration, user provisioning and more
Atlassian Crowd - Crowd is a single sign-on and user identity solution.
Google Cloud IAM - Google Cloud Identity & Access Management (IAM) lets administrators authorize who can take action on specific resources, giving you full control and visibility to manage cloud resources centrally.
Amazon Cognito - Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.