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Google Cloud Firestore vs Microsoft Azure Cosmos DB comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 6, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Google Cloud Firestore
Ranking in NoSQL Databases
13th
Ranking in Managed NoSQL Databases
10th
Average Rating
8.6
Reviews Sentiment
8.1
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Microsoft Azure Cosmos DB
Ranking in NoSQL Databases
5th
Ranking in Managed NoSQL Databases
1st
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
99
Ranking in other categories
Database as a Service (DBaaS) (6th), Vector Databases (1st)
 

Featured Reviews

AnthonyAbah - PeerSpot reviewer
Real-time syncing boosts productivity with efficient data management
The most valuable features are Firestore's query capabilities and its real-time syncing functionality. The queries are efficient, apart from some limitations. Real-time syncing allows any changes at the backend to automatically appear at the frontend. This is highly useful as it eliminates the need to reload the browser to see the updates.
MichaelJohn - PeerSpot reviewer
Very efficient for application-facing scenarios
There are several areas for improvement. Firstly, having a local development emulator or simulator for Azure Cosmos DB would be beneficial. It would be very handy to have a Docker container that developers can use locally. Although, I know there is a free tier and so on and so forth, having a local environment would be nice. For example, SQL Server is very portable. You can even install it on your machine. That is the number one thing that is missing in Azure Cosmos DB. The second improvement area is the IDE of choice. That means how you interact with Azure Cosmos DB. For example, with SQL Server, you have SQL Server Management Studio. I know there is a little bit of support for Azure Cosmos DB in Azure Data Studio, but it is not heavily advertised or it does not feel like first-class citizen support. Developer experience or developer tooling is missing in terms of interacting with the database. Better developer tools or an IDE for interacting with Azure Cosmos DB would enhance the developer experience. Lastly, there is some mixed messaging about what Azure Cosmos DB is, given its multiple APIs. There are so many Azure Cosmos DB APIs available. There is NoSQL. There are MongoDB, Gremlin, and others. There is still some mixed messaging for others who are new to Azure Cosmos DB about what Azure Cosmos DB is. Is this like MongoDB, but then there is also MongoDB in Azure Cosmos DB? I know it well, and I know that the default one is just NoSQL, but others I have interacted with over the last ten years or so get confused.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I use the solution for maps, saving some locations, and chats."
"The most valuable features are Firestore's query capabilities and its real-time syncing functionality."
"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."
"It works reasonably fast. You can retain the original format of the document as received by the third-party system."
"The high speed of Azure Cosmos DB compared to other competitors is remarkable."
"Microsoft Azure Cosmos DB offers exceptional stability, boasting a reliability rating of 99.95 percent."
"The autoscale feature is the most useful for us."
"Cosmos DB is stable and easy to use."
"The most valuable feature of Azure Cosmos DB is its scalability. That is the biggest reason I use Azure Cosmos DB."
"Specifically, we are using the MongoDB API, so we leverage it in that way. I like the flexibility that it offers. My team does not have to spend time building out database tables. We can get going fairly quickly with being able to read and write data into a MongoDB collection that is hosted inside Azure Cosmos DB."
 

Cons

"I initially faced a problem creating groups in individual chats."
"Firestore needs improvements in its querying capabilities, particularly the ability to join tables and merge data from different tables before sending it to the front end."
"One of the primary challenges with Cosmos DB as a non-relational data store is the careful data modeling required due to the lack of collection-level joins when using the SQL API."
"The integration with other solutions needs to improve because Cosmos DB's interoperability is lacking in some scenarios. For example, I'm currently implementing Fabric. That involves migrating from environments without apps, processing data and users, and taking them to Fabric."
"Cosmos DB is expensive, and the RU-based pricing model is confusing."
"The cost can sometimes be high, especially during cross-partition queries with large data amounts."
"There should be a simpler way for data migration."
"There's a little bit of a learning curve because I was new to Azure. But once you learn the tool, it's pretty straightforward."
"Continuing to educate customers on how they can take better advantage of Microsoft Azure Cosmos DB without having to completely rewrite their entire application paradigm would be beneficial. They can help them understand that there are multiple options to interact with it. They do not necessarily have to start from scratch. They can refactor their existing application to be able to use it better."
"The biggest problem is the learning curve and other database services like RDS."
 

Pricing and Cost Advice

Information not available
"It is expensive. The moment you have high availability options and they are mixed with the type of multitenant architecture you use, the pricing is on the higher end."
"Cosmos DB is a managed offering, so its cost is understandably higher."
"The customer had a high budget, but it turned out to be a little bit cheaper than what they expected. I am not sure how much they have spent so far, but they are satisfied with the pricing."
"This cost model is beneficial because it allows for cost control by limiting resource units (RUs), which is ideal. However, for our needs, we can't engage with their minimum pricing, which ranges from 100 to 1,000 RUs. At the bare minimum, we need to use 4,000 RUs for a customer. I would like to find a way to gain some advantages from the lowest tier, particularly the ability to scale down if necessary. It would be helpful to have more flexibility in cost management at the lower end."
"There is a licensing fee."
"Microsoft Azure Cosmos DB pricing is based on RUs. Reading 1 KB document costs one RU, whereas writing one document costs five RUs. Pricing for querying depends on the complexity of the query. If you increase the document size, it will automatically increase the RU cost."
"When we've budgeted for our resources, it's one of the more expensive ones, but it's still not very expensive per month."
"Pricing is one of the solution's main features because it is based on usage, scales automatically, and is not too costly."
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Top Industries

By visitors reading reviews
No data available
Legal Firm
13%
Computer Software Company
10%
Comms Service Provider
10%
Financial Services Firm
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What needs improvement with Google Cloud Firestore?
Firestore needs improvements in its querying capabilities, particularly the ability to join tables and merge data from different tables before sending it to the front end. The pricing model is also...
What is your primary use case for Google Cloud Firestore?
I use Google Cloud Firestore for user management and data storage, primarily for web applications. Firestore helps sync data between different users and stores documents efficiently.
What advice do you have for others considering Google Cloud Firestore?
I highly recommend Google Cloud Firestore due to its cost-effectiveness and real-time syncing capabilities. However, it needs improvements in querying functionalities and a simplified pricing model.
What do you like most about Microsoft Azure Cosmos DB?
The initial setup is simple and straightforward. You can set up a Cosmos DB in a day, even configuring things like availability zones around the world.
What is your experience regarding pricing and costs for Microsoft Azure Cosmos DB?
We are not consuming so much yet since we are at the beginning of using this solution. I would rate the pricing of Microsoft Azure Cosmos DB a six out of ten.
What needs improvement with Microsoft Azure Cosmos DB?
We are at the beginning of production, and everything is working very well. The price can always be lower, but currently, it's not a problem.
 

Also Known As

No data available
Microsoft Azure DocumentDB, MS Azure Cosmos DB
 

Overview

 

Sample Customers

Information Not Available
TomTom, KPMG Australia, Bosch, ASOS, Mercedes Benz, NBA, Zero Friction, Nederlandse Spoorwegen, Kinectify
Find out what your peers are saying about Google Cloud Firestore vs. Microsoft Azure Cosmos DB and other solutions. Updated: May 2025.
860,592 professionals have used our research since 2012.