Nakama - Nakama is an open-source distributed social and realtime server for games and apps.
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
GameSparks - GameSparks is a Backend-as-a-Service solution provider to mobile game developers to help them...
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.
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Supabase - An open source Firebase alternative