Azure Cosmos DB vs QuestDB

Azure Cosmos DB is a globally distributed, multi-model database service by Microsoft offering single-digit millisecond latency and 99.999% availability SLA. It supports document, key-value, graph, and column-family data models with multiple API options.

QuestDB is High-performance time-series database with SQL support optimized for fast ingestion and real-time analytics.. It is available under a freemium model. This tool falls under the databases category.