--- title: "Azure Cosmos DB vs Firestore: Which is searched more?" description: "Is Azure Cosmos DB or Firestore more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Document databases set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/azure-cosmos-db-vs-firestore" publisher: "Brandwave" --- # Azure Cosmos DB vs Firestore: Which is searched more? Is Azure Cosmos DB or Firestore more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Document databases set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Azure Cosmos DB and Firestore - **Competitive set**: Document databases - **Market**: Global - **Month measured**: Sep 2026 - **Azure Cosmos DB Share of Search**: 0.87% - **Firestore Share of Search**: 6.5% ## Is Azure Cosmos DB or Firestore more popular in search? - In September 2026, Firestore had more branded searches than Azure Cosmos DB among document databases worldwide. Firestore had about 49,500 branded searches, while Azure Cosmos DB had 6,600. Firestore made up 6.5% of all document database searches we track, and Azure Cosmos DB accounted for 0.87%. - Firestore was ahead of Azure Cosmos DB in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Azure Cosmos DB’s share of searches among document databases worldwide moved from 1% to 0.87%, and its estimated monthly branded searches moved from 9.9K to 6.6K. - Across the 12 months ending September 2026, Firestore’s share of searches among document databases worldwide moved from 6.3% to 6.5%, and its estimated monthly branded searches moved from 60.5K to 49.5K. ## Top document databases in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Firestore was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Azure Cosmos DB was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Firestore was listed before Azure Cosmos DB in three out of five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | MongoDB | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Amazon DynamoDB | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Couchbase | 3rd | 2 of 3 | 2 of 2 | 4 of 5 | | Firestore | 4th | 2 of 3 | 1 of 2 | 3 of 5 | | Azure Cosmos DB | 5th | 1 of 3 | 1 of 2 | 2 of 5 | | CouchDB | 6th | 2 of 3 | 0 of 2 | 2 of 5 | | RavenDB | 7th | 1 of 3 | 0 of 2 | 1 of 5 | ## Every AI answer about document databases - Asked ChatGPT "Which document database should I use?": 1. MongoDB, 2. Azure Cosmos DB, 3. Amazon DynamoDB, 4. Couchbase - Asked ChatGPT "What are the best document databases?": 1. MongoDB, 2. Amazon DynamoDB, 3. Firestore, 4. Couchbase, 5. CouchDB, 6. RavenDB - Asked ChatGPT "What's the best document database for app data?": 1. MongoDB, 2. Firestore, 3. Amazon DynamoDB, 4. CouchDB - Searched Google, AI Overview "document databases": 1. MongoDB, 2. Couchbase, 3. Azure Cosmos DB - Searched Google, AI Overview "nosql document database": 1. MongoDB, 2. Amazon DynamoDB, 3. Couchbase, 4. Firestore Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How did search popularity change for document databases worldwide in September 2026? - In September 2026, Firestore lost share of searches among document databases worldwide, from 7.8% to 6.5%. - Estimated monthly branded searches for Azure Cosmos DB worldwide fell 33.3% over 12 measured months, from 9.9K to 6.6K in September 2026. ## Month by month | Month | Azure Cosmos DB estimated searches | Azure Cosmos DB Share of Search | Azure Cosmos DB rank | Firestore estimated searches | Firestore Share of Search | Firestore rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 9.9K | 1% | 6 | 60.5K | 6.3% | 2 | | Nov 2025 | 9.9K | 1.1% | 6 | 60.5K | 6.5% | 2 | | Dec 2025 | 8.1K | 1.1% | 6 | 49.5K | 6.4% | 2 | | Jan 2026 | 9.9K | 1.3% | 5 | 49.5K | 6.4% | 2 | | Feb 2026 | 9.9K | 1.3% | 5 | 49.5K | 6.4% | 2 | | Mar 2026 | 9.9K | 1.1% | 5 | 60.5K | 6.5% | 2 | | Apr 2026 | 8.1K | 0.88% | 5 | 60.5K | 6.5% | 2 | | May 2026 | 6.6K | 0.86% | 5 | 60.5K | 7.9% | 2 | | Jun 2026 | 6.6K | 0.86% | 5 | 60.5K | 7.9% | 2 | | Jul 2026 | 6.6K | 0.87% | 5 | 49.5K | 6.5% | 2 | | Aug 2026 | 5.4K | 0.85% | 5 | 49.5K | 7.8% | 2 | | Sep 2026 | 6.6K | 0.87% | 5 | 49.5K | 6.5% | 2 | ## How each brand is measured Brandwave collects information about searches that people make online using Azure Cosmos DB’s and Firestore’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Azure Cosmos DB**: Measured on the search term “azure cosmos db”. - **Firestore**: Measured on the search term “firestore”. - [Azure Cosmos DB profile](/demand/global-en/brands/azure-cosmos-db) - [Firestore profile](/demand/global-en/brands/firestore) - [All document databases worldwide](/demand/global-en/categories/document-databases): The set both shares are measured inside, 7 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Azure Cosmos DB or Firestore more popular in search? In September 2026, Firestore had more branded searches than Azure Cosmos DB among document databases worldwide. Firestore had about 49,500 branded searches, while Azure Cosmos DB had 6,600. Firestore made up 6.5% of all document database searches we track, and Azure Cosmos DB accounted for 0.87%. ## Cite this page Brandwave. "Azure Cosmos DB vs Firestore: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/azure-cosmos-db-vs-firestore This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/azure-cosmos-db-vs-firestore. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.