Auth0 is a cloud service that provides a set of unified APIs and tools that instantly enables single sign-on and user management for any application, API or IoT device. It's modern identity infrastructure, built for developers. Auth0 provides open source SDKs for all popular platforms, all popular operating systems, all popular devices and all popular programming languages. It allows connections to any identity provider from social to enterprise to custom username/password databases. Auth0 is obsessed with making identity, authentication and authorization simpler for modern applications.
FusionAuth is a single-tenant CIAM solution that deploys on-premises, in your private cloud, or on their fully-managed FusionAuth Cloud. Their JSON REST API provides advanced identity management that is easy for developers to deploy and implement on any platform or framework.
LastPass is an award-winning password manager which helps millions of registered users organize and protect their online lives. For more than 100,000 businesses of all sizes, LastPass provides password and identity management solutions that are convenient, easy to manage and effortless to use. From enterprise password management and single sign-on to adaptive multi-factor authentication, LastPass for Business gives superior control to IT and frictionless access to users.