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Microsoft Azure Cosmos DB pros and cons

Vendor: Microsoft

4.1 out of 5

109 reviews
95% willing to recommend

Pros & Cons summary

Microsoft Azure Cosmos DB is a highly scalable platform supporting integration with existing tools. It delivers speed with low latency, enabling enhanced query capabilities. Geo-replication ensures reliability, while multiple APIs enhance versatility. However, users face complex pricing, limited technical support, and integration challenges. Backup and restore need improvement, and indexing can be costly. Despite global capabilities, buyers should consider these complexities when evaluating Microsoft Azure Cosmos DB for their needs.

Buyer's Guide

Get pricing advice, tips, use cases and valuable features from real users of this product.

Prominent pros & cons

PROS

Microsoft Azure Cosmos DB is highly valued for its scalability, allowing seamless adaptation to various concurrency and data update demands.

The platform offers excellent latency and high availability, providing real-time access and ensuring optimal performance for critical applications.

Users appreciate the flexible schema support, which simplifies data management and integration across different data models and use cases.

The robust security features and reliability of Microsoft Azure Cosmos DB, including geo-replication, enhance data protection and global accessibility.

Microsoft Azure Cosmos DB allows for efficient data storage and retrieval, particularly with its ability to handle large volumes of unstructured data quickly.

CONS

Query complexity in Microsoft Azure Cosmos DB can be challenging and requires improvement, particularly for non-traditional use cases and integration with MongoDB.

Documentation and support for integration with other services, such as Databricks, are insufficient, and many users report difficulty understanding the pricing model.

The pricing model of Microsoft Azure Cosmos DB is complicated and expensive compared to competitors, and auto-scaling features could offer more granular control.

The lack of seamless integration with other databases and support for cross-container joins complicates the data retrieval process.

Microsoft Azure Cosmos DB's documentation, particularly around indexing and RU consumption, is inadequate and needs enhancement to make it more cost-effective for users.

Microsoft Azure Cosmos DB Pros review quotes

reviewer2724105

Senior Director of Product Management at a tech vendor with 1,001-5,000 employees

Jun 18, 2025

The efficiency of search capabilities is significant, particularly when it comes to the flexibility of conducting in-depth, almost recursive searches that are both efficient and cost-effective.

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Michael Hasenfang

Director, Platform Engineering - Infrastructure Systems and Automation at a computer software company with 1,001-5,000 employees

Nov 18, 2025

The value that it has added to my AI or search workloads is that I think it's optimized that process and made it easier; we have a lot of unstructured data coming from different dissimilar systems and different data sources, so correlating those things together and making sense of it has been very beneficial.

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SS

Siddharth Sameer

Senior Data Engineer at Bajaj Finserv

Jun 20, 2025

Their new feature, dynamic data masking, is very cool and useful for us.

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Microsoft Azure Cosmos DB

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FG

Fabien GOUINEAU

Architecte Cloud at Visiativ SA

Jun 23, 2025

The best feature of Microsoft Azure Cosmos DB is the replication all over the world.

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AV

Associate Data Scientist

Jul 1, 2025

It performs very well, especially under high load where it automatically scales up the RUs, and the main advantage of Microsoft Azure Cosmos DB is its low latency, with response times in milliseconds, making it great for chatbots.

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Solutions Architect at a retailer with 10,001+ employees

Nov 19, 2025

Microsoft Azure Cosmos DB has helped decrease my company's total cost of ownership; it's easier because we have less to maintain, we're not trying to set up multiple SQL servers with replication and everything, and centralization helps a lot.

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Senior Data & Ai Engineer at Cluster Reply

Nov 18, 2025

The dynamic autoscale or serverless model of Microsoft Azure Cosmos DB has indeed helped reduce our costs and operational effort by allowing us to scale horizontally in a straightforward manner according to our needs.

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NirmalKumar Sharma

Software Engineer at Akeo India

Jul 1, 2025

Overall, I would rate it a nine out of ten with the only significant issue being the partitioning key functionality.

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CEO at II4Tech

Jun 27, 2025

Some of the best features of Microsoft Azure Cosmos DB are that it could scale, and we could still use SQL language.

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Private Wealth Advisor & Head of Secretariat at Arima Fund Ltd

Aug 5, 2025

The benefits of Microsoft Azure Cosmos DB were immediate for us.

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Microsoft Azure Cosmos DB Cons review quotes

reviewer2724105

Senior Director of Product Management at a tech vendor with 1,001-5,000 employees

Jun 18, 2025

Right now, the vectors are stored as floating-point numbers within the NoSQL document, which makes them inefficiently large. This leads to increased storage space requirements, and searching through a vast number of documents in the vector database becomes quite costly in terms of RUs. While the integration works well, the expense associated with it is relatively high. I would really like to see a reduction in costs for their vector search, as it is currently on the expensive side.

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Michael Hasenfang

Director, Platform Engineering - Infrastructure Systems and Automation at a computer software company with 1,001-5,000 employees

Nov 18, 2025

Customer service and technical support from Microsoft have been all right. On a scale of 1 to 10, I would give them probably a six, maybe a hard seven at most.

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SS

Siddharth Sameer

Senior Data Engineer at Bajaj Finserv

Jun 20, 2025

In Microsoft Azure Cosmos DB, I would suggest improvements in security.

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Microsoft Azure Cosmos DB

Free Report: Microsoft Azure Cosmos DB Reviews and More

Learn what your peers think about Microsoft Azure Cosmos DB. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.

893,244 professionals have used our research since 2012.

FG

Fabien GOUINEAU

Architecte Cloud at Visiativ SA

Jun 23, 2025

The model with autoscaling for RU is complicated to optimize RU consumption.

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AV

Associate Data Scientist

Jul 1, 2025

To show this in real time, we need a live connection that automatically updates in response to new records being inserted. This automated updating feature is lacking in Microsoft Azure Cosmos DB compared to Databricks.

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Solutions Architect at a retailer with 10,001+ employees

Nov 19, 2025

I think Microsoft Azure Cosmos DB can be improved by providing continuous backup for multi-region rights. I believe it's available for non-multi-region rights, but there are many features that are locked behind continuous backup that I can't use because it's not enabled yet.

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Senior Data & Ai Engineer at Cluster Reply

Nov 18, 2025

A way Microsoft Azure Cosmos DB could be improved is through the introduction of an access control list on a row and on a specific field within the document, rather than relying on application-level coding to manage different access control lists.

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NirmalKumar Sharma

Software Engineer at Akeo India

Jul 1, 2025

The main downside I have faced was with hierarchical partitioning in Microsoft Azure Cosmos DB.

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CEO at II4Tech

Jun 27, 2025

The cost is a concern. Microsoft Azure Cosmos DB did not decrease our total cost of ownership. From the standpoint of the old way of doing DBA operations, it did, but our cloud cost increased significantly.

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Private Wealth Advisor & Head of Secretariat at Arima Fund Ltd

Aug 5, 2025

The operational complexity of Microsoft Azure Cosmos DB can be challenging for individuals who are not tech-savvy.

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