What are some alternatives?
Devise - Flexible authentication solution for Rails with Warden.
Okta - Enterprise-grade identity management for all your apps, users & devices
SquareSpace - Squarespace is the easiest way for anyone to create an exceptional website. Pages, galleries, blogs, e-commerce, domains, hosting, analytics, 24/7 support - all included.
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Satellizer - Satellizer is a nd-to-end, token-based authentication module for AngularJS
Microsoft Azure Active Directory - Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups and help secure access to applications including Microsoft online services like Office 365 …