Userbase Alternatives

Firebase is a Platform-as-a-Service (PaaS) for hosting and develop mobile and web applications. With Firebase developers can move quickly and integrate with third-party software with less friction. Firebase provides an API that can packe your application into a single SDK that works cross-platform for iOS, Android, JavaScript and C++. The Firebase platform is owned by Google and to-date over 1.5 million applications has been shipped on the platform.

Supabase is a free and open-source self-hosted and SaaS provided alternative to Firebase. With Supabase you can add a realtime REST API to a PostgreSQL without writing a single line of code.

MemberPress is a premium WordPress plugin that allows you to instantly start charging your users for access to your content. The MemberPress plugin integrates with the most common payment provides and third-party services.

Auth0 is an identity management platform for developers and application teams. With a few lines of code you can have Auth0 integrated in any app written in any language, and any framework. Auth0 provides over 30 SDKs and quick-start guides to help you succeed implementing authentication for your application, regardless of language or framework. Developer use Auth0 to quickly integrate authentication and authorization into their applications, without spending weeks writing their own implementation.

A flexible WordPress plugin for building online communities, teams, and groups with WordPress-powered sites.

A next generation user profile and social networking plugin for WordPress. PeepSo allows you to quickly and effortlessly create a social network and online community with you WordPress-powered site. The foundation of PeepSo is 100% free and gives you the basics to create a functional community. For more advanced features, there is a extensions ecosystem for both free and premium plugins that can be used to add more functionality and features to your site.

Ultimate Member is a WordPress plugin offers a wide range of features including user profiles, member directories, user registration and login, user role editing, content restriction.