Amazon DynamoDB, Cloud Firestore, Azure Cosmos DB, Google Cloud Datastore, and Google Cloud Bigtable are the most popular tools in the category “NoSQL Databases”. “Predictable performance and cost” is the primary reason developers pick Amazon DynamoDB over its competitors, while “Cloud Storage” is the reason why Cloud Firestore was chosen.
A scalable, highly available, and managed Apache Cassandra–compatible database service
Highly available and flexible non-relational data store
Fast, scalable, highly available MongoDB-compatible database service
A scalable, highly available, and managed Apache Cassandra–compatible database service
Store and sync data in real time
General-purpose fully ACID transactional database made specifically to run on and leverage AWS
A plug and play database service for the web and beyond
A NoSQL Object Database, extended as Graph Database is VelocityGraph
A scale-out data infrastructure for enterprises that need to handle any workload in any cloud
The same database that powers Google Search, Gmail and Analytics
A Fully Managed NoSQL Data Storage Service
One complete database service that not only does data storage, but also search, real-time and more
A fully-managed, globally distributed NoSQL database service
Database as a Service. Add Search, Time-Ordered Events, Geospatial or Graph Queries Fast with a REST API
Distributed database-as-a-service (DBaaS) for web & mobile apps