Android Apps to NoSQL database

GUN is an open-source, decentralized, and distributed graph database with real-time synchronization capabilities. It simplifies building collaborative and offline-first applications by providing peer-to-peer data replication and a flexible data model.

Heroic Labs offers Nakama, an open-source, distributed server for social and real-time games and apps. It provides a powerful suite of backend features including user authentication, social features, real-time multiplayer, and data storage, enabling developers to build scalable and engaging online experiences.

SashiDo.io offers a fully managed backend-as-a-service (BaaS) for developers, providing a robust and scalable Parse Server hosting solution. It simplifies backend development with features like real-time databases, push notifications, and seamless integrations, allowing developers to focus on building their applications.

Back4App is a robust backend-as-a-service (BaaS) built on Parse Server, offering a scalable and flexible platform for mobile and web application development. It simplifies backend tasks like databases, APIs, and cloud functions, allowing developers to focus on the frontend.

Apache CouchDB is a schema-free NoSQL database built for reliability and scalability, particularly in offline-first applications. It emphasizes ease of use and fault tolerance by using a peer-based distribution model and a robust replication mechanism. Its HTTP-based API and JSON document format make it developer-friendly.