Fauna offers a document relational database that operates as a cloud API, making it accessible over the internet without the need for physical hardware. This database is designed for developers and businesses across various industries, providing a scalable and reliable solution for data management. It ensures high availability by recording data across at least three nodes, which enhances consistency and reliability. Fauna's subscription-based model charges clients based on their data storage and transaction usage, allowing them to adjust their database needs flexibly. This approach differentiates Fauna from competitors by aligning with modern business requirements for efficient data management.