What are some alternatives?
When comparing AngularJS and React, you can also consider the following products
Okta - Enterprise-grade identity management for all your apps, users & devices
Backbone.js - Give your JS App some Backbone with Models, Views, Collections, and Events
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Vue.js - Reactive Components for Modern Web Interfaces
OneLogin - On-demand SSO, directory integration, user provisioning and more