Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Blazor - An experimental web UI framework using C#/Razor and HTML, running in the browser via WebAssembly
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Flatfile - The new standard for data import
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.