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.
Supabase - An open source Firebase alternative
NATS - NATS.io is an open source messaging system for cloud native applications, IoT messaging, Edge, and microservices architectures.
Etebase - Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges.
Rapid.io - Rapid.io is a cloud-hosted service that allows app developers to build realtime user interfaces...