Azure Cosmos DB for NoSQL vs IBM Cloudant
Azure Cosmos DB for NoSQL
azure.microsoft.com
IBM Cloudant
ibm.comSide by side
| Figure | Azure Cosmos DB for NoSQL | IBM Cloudant |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 10 | 7 |
| Spec score · Document Databases | 8.1 (#9) | 7.7 (#18) |
| Spec score · NoSQL Databases | 7.9 (#15) | 7.5 (#25) |
| Spec score · Database Software | 8.1 (#42) | 7.5 (#67) |
| Availability | The product page states that NoSQL data has SLAs including less than 10 millisecond read and write latency and 99.999 percent availability. | IBM states Cloudant provides 99.99% SLA reliability and distributes data across availability zones and six regions. |
| Free plan | Yes | Yes |
| Integrations | Change feed supports event-driven architectures and streaming pipelines using Azure Functions and Spark. | Cloudant integrates with IBM Identity and Access Management, and IBM Key Protect can provide customer-managed encryption keys for supported Cloudant deployments. |
| Intended workloads | Microsoft identifies flexible-schema, latency-sensitive, elastic, high-throughput, and highly available mission-critical apps as good fits, while describing analytical OLAP and highly relational apps as poor fits. | IBM describes Lite as suited to evaluation and testing, and Standard as suited to development and production workloads. |
| Search | It offers built-in vector and hybrid similarity search for workloads including RAG and AI agents. | Cloudant Search supports language-aware full-text, multi-field, and simple geospatial queries; IBM says to use Views for aggregation beyond faceting. |
Plans
Azure Cosmos DB for NoSQL
- Free tierFree
- 30-day free trialPriced on request
- Standard provisioned throughputPriced on request
- Standard provisioned throughputPrice not published
- Autoscale provisioned throughputPriced on request
- Autoscale provisioned throughputPrice not published
- ServerlessPriced on request
- ServerlessPrice not published
- Azure Cosmos DB free tierFree
- Azure Cosmos DB for NoSQL — standard provisioned throughputPrice not published
IBM Cloudant
- LitePriced on request
- StandardPriced on request
- EnterprisePriced on request
- EnterprisePrice not published
- LiteFree
- Dedicated HardwarePriced on request
- StandardPrice not published
In their own words
Azure Cosmos DB for NoSQL
Azure Cosmos DB for NoSQL is a fully managed cloud database built around schema-agnostic JSON documents and SQL-like querying. It supports global data distribution, multi-region writes, and automatic failover, with configurable consistency controls and transactions. Search includes vector and hybrid similarity capabilities for workloads such as retrieval-augmented generation and AI agents. Throughput can use standard provisioned, autoscale provisioned, or serverless models. The service lists SDKs for.NET, Java, JavaScript/Node.js, Python, Go, and Rust. Its change feed can support event-driven architectures and streaming pipelines using Azure Functions and Spark; no-ETL analytical workflows are available through Azure Synapse Link or Fabric mirroring. Microsoft states that NoSQL data has service-level agreements including less than 10 millisecond read and write latency and 99.999 percent availability. A free tier includes 1,000 RU/s and 25 GB of storage for one account per Azure subscription, and a 30-day trial is listed. The Azure Cosmos DB emulator provides a no-cost local development environment for Windows or Linux. The pricing page notes that the selected compute pricing model and API cannot be changed after selection.