# IBM Db2, Google Cloud Firestore vs Azure Cosmos DB Comparison | | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Star Rating** | 4.1 out of 5 | 4.2 out of 5 | 4.2 out of 5 | | **Total Reviews** | 682 | 97 | 68 | | **Largest Market Segment** | Enterprise (66.0% of reviews) | Small-Business (53.1% of reviews) | Enterprise (42.4% of reviews) | | **Entry Level Price** | Free Trial 1 License | No pricing available | No pricing available | --- ## Top Pros & Cons ### IBM Db2 Pros: - Performance (14 reviews) - Reliability (13 reviews) Cons: - Complex Setup (4 reviews) - Expensive (4 reviews) ### Google Cloud Firestore Pros: - API Integration (1 reviews) - Features (1 reviews) Cons: - Expensive (1 reviews) - Unclear Pricing (1 reviews) ### Azure Cosmos DB Pros: - Ease of Use (4 reviews) - Features (3 reviews) Cons: - Expensive (3 reviews) - Cost Issues (2 reviews) --- ## Ratings Comparison | Rating | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Meets Requirements** | 8.5 (488 reviews) | 8.9 (81 reviews) | 8.5 (48 reviews) | | **Ease of Use** | 8.0 (497 reviews) | 8.7 (81 reviews) | 8.2 (48 reviews) | | **Ease of Setup** | 7.7 (263 reviews) | 9.3 (25 reviews) | 8.0 (22 reviews) | | **Ease of Admin** | 7.7 (242 reviews) | 9.2 (22 reviews) | 7.7 (23 reviews) | | **Quality of Support** | 8.1 (461 reviews) | 7.9 (76 reviews) | 8.2 (46 reviews) | | **Has the product been a good partner in doing business?** | 8.3 (234 reviews) | 8.4 (22 reviews) | 8.3 (22 reviews) | | **Product Direction (% positive)** | 6.8 (456 reviews) | 8.6 (81 reviews) | 9.0 (47 reviews) | --- ## Pricing ### IBM Db2 #### Entry-Level Pricing Plan: Db2 On Cloud - Lite Price: Free Trial 1 License Description: A completely free edition of DB2 on Cloud. Key Features: - Enjoy high performance and elastic scaling with Db2’s fully managed database and warehouse solutions in the cloud. Try for free. [Browse all 6 editions](https://www.g2.com/products/ibm-db2/pricing) #### Free Trial Yes ### Google Cloud Firestore #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Azure Cosmos DB #### Entry-Level Pricing No pricing available #### Free Trial No information available --- ## Features Comparison By Category ### Data Warehouse | Product | Score | Reviews | |---|---|---| | **IBM Db2** | 8.2/10 | 63 | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Data Management | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Integration** | 8.6 (52 reviews) ✓ Verified | Not enough data | Not enough data | | **Data Compression** | 8.1 (48 reviews) ✓ Verified | Not enough data | Not enough data | | **Data Quality** | 8.6 (49 reviews) ✓ Verified | Not enough data | Not enough data | | **Built-In Data Analytics** | 8.2 (48 reviews) ✓ Verified | Not enough data | Not enough data | | **In-Database Machine Learning** | 7.5 (34 reviews) ✓ Verified | Not enough data | Not enough data | | **Data Lake Analytics** | 7.6 (34 reviews) ✓ Verified | Not enough data | Not enough data | #### Integration | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **AI/ ML Integration** | 7.8 (43 reviews) ✓ Verified | Not enough data | Not enough data | | **BI Tool Integration** | 8.1 (45 reviews) ✓ Verified | Not enough data | Not enough data | | **Data lake Integration** | 8.1 (42 reviews) ✓ Verified | Not enough data | Not enough data | #### Deployment | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **On-Premise** | 8.4 (50 reviews) ✓ Verified | Not enough data | Not enough data | | **Cloud** | 7.8 (41 reviews) ✓ Verified | Not enough data | Not enough data | #### Performance | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Scalability** | 8.6 (51 reviews) ✓ Verified | Not enough data | Not enough data | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Governance** | 8.7 (46 reviews) ✓ Verified | Not enough data | Not enough data | | **Data Security** | 9.0 (35 reviews) ✓ Verified | Not enough data | Not enough data | #### Generative AI | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **AI Text Generation** | 8.3 (8 reviews) | Not enough data | Not enough data | | **AI Text Summarization** | 8.3 (8 reviews) | Not enough data | Not enough data | ### Relational Databases | Product | Score | Reviews | |---|---|---| | **IBM Db2** | 8.5/10 | 370 | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Management | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Schema** | 8.6 (60 reviews) | Not enough data | Not enough data | | **Query Language** | 8.4 (62 reviews) | Not enough data | Not enough data | | **ACID - Complaint** | 8.2 (52 reviews) | Not enough data | Not enough data | | **Data Replication** | 8.5 (55 reviews) | Not enough data | Not enough data | #### Support | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Text Search** | 8.0 (57 reviews) | Not enough data | Not enough data | | **Data Types** | 8.4 (60 reviews) | Not enough data | Not enough data | | **Languages** | 7.9 (60 reviews) | Not enough data | Not enough data | | **Operating Systems** | 8.4 (61 reviews) | Not enough data | Not enough data | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Database Locking** | 8.5 (60 reviews) | Not enough data | Not enough data | | **Access Control** | 8.8 (60 reviews) | Not enough data | Not enough data | | **Encryption** | 8.4 (58 reviews) | Not enough data | Not enough data | | **Authentication** | 8.4 (56 reviews) | Not enough data | Not enough data | #### Performance | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Disaster Recovery** | 8.6 (62 reviews) | Not enough data | Not enough data | | **Data Concurrency** | 8.6 (58 reviews) | Not enough data | Not enough data | | **Workload Management** | 8.5 (56 reviews) | Not enough data | Not enough data | | **Advanced Indexing** | 8.4 (57 reviews) | Not enough data | Not enough data | | **Query Optimizer** | 8.4 (57 reviews) | Not enough data | Not enough data | #### Database Features | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Storage** | 8.7 (306 reviews) | Not enough data | Not enough data | | **Availability** | 8.8 (309 reviews) | Not enough data | Not enough data | | **Stability** | 8.8 (309 reviews) | Not enough data | Not enough data | | **Scalability** | 8.4 (304 reviews) | Not enough data | Not enough data | | **Security** | 8.8 (302 reviews) | Not enough data | Not enough data | | **Data Manipulation** | 8.4 (303 reviews) | Not enough data | Not enough data | | **Query Language** | 8.4 (308 reviews) | Not enough data | Not enough data | ### Key Value Databases | Product | Score | Reviews | |---|---|---| | **IBM Db2** | N/A | N/A | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Data Management | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Model** | Not enough data | Not enough data | Not enough data | | **Data Types** | Not enough data | Not enough data | Not enough data | #### Availability | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Auto Sharding** | Not enough data | Not enough data | Not enough data | | **Auto Recovery** | Not enough data | Not enough data | Not enough data | | **Data Replication** | Not enough data | Not enough data | Not enough data | #### Performance | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Integrated Cache** | Not enough data | Not enough data | Not enough data | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Role-Based Authorization** | Not enough data | Not enough data | Not enough data | | **Authentication** | Not enough data | Not enough data | Not enough data | | **Audit Logs** | Not enough data | Not enough data | Feature Not Available | | **Encryption** | Not enough data | Not enough data | Not enough data | #### Support | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Multi-Model** | Not enough data | Not enough data | Not enough data | | **Operating Systems** | Not enough data | Not enough data | Not enough data | ### Document Databases | Product | Score | Reviews | |---|---|---| | **IBM Db2** | N/A | N/A | | **Google Cloud Firestore** | 8.3/10 | 25 | | **Azure Cosmos DB** | 7.7/10 | 7 | #### Data Management | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Model** | Not enough data | 8.7 (24 reviews) | 8.3 (6 reviews) | | **Data Types** | Not enough data | 8.9 (24 reviews) | 7.8 (6 reviews) | | **Built - In Search** | Not enough data | 8.1 (23 reviews) | 7.0 (5 reviews) | | **Event Triggers** | Not enough data | 8.1 (24 reviews) | 7.7 (5 reviews) | #### Availability | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Auto Sharding** | Not enough data | 8.0 (23 reviews) | 7.3 (5 reviews) | | **Auto Recovery** | Not enough data | 8.0 (23 reviews) | 7.3 (5 reviews) | | **Data Replication** | Not enough data | 7.9 (24 reviews) | 8.7 (5 reviews) | #### Performance | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Query Optimization** | Not enough data | 7.9 (20 reviews) | 6.7 (6 reviews) | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Role-Based Authorization** | Not enough data | 8.4 (25 reviews) | 8.1 (6 reviews) | | **Authentication** | Not enough data | 9.1 (25 reviews) | 7.7 (5 reviews) | | **Audit Logs** | Not enough data | 7.7 (21 reviews) | 7.3 (5 reviews) | | **Encryption** | Not enough data | 9.0 (25 reviews) | 8.0 (5 reviews) | #### Support | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Multi-Model** | Not enough data | 8.2 (21 reviews) | Not enough data | | **Operating Systems** | Not enough data | 8.9 (20 reviews) | Not enough data | | **BI Connectors** | Not enough data | 7.8 (19 reviews) | Not enough data | ### Graph Databases | Product | Score | Reviews | |---|---|---| | **IBM Db2** | N/A | N/A | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Data Management | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Model** | Not enough data | Not enough data | Not enough data | | **Data Types** | Not enough data | Not enough data | Not enough data | | **Built - In Search** | Not enough data | Not enough data | Not enough data | | **Event Triggers** | Not enough data | Not enough data | Not enough data | | **Query Language** | Not enough data | Not enough data | Not enough data | #### Availability | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Auto Sharding** | Not enough data | Not enough data | Not enough data | | **Auto Recovery** | Not enough data | Not enough data | Not enough data | #### Performance | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Query Optimization** | Not enough data | Not enough data | Not enough data | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Role-Based Authorization** | Not enough data | Not enough data | Not enough data | | **Authentication** | Not enough data | Not enough data | Not enough data | | **Audit Logs** | Not enough data | Not enough data | Not enough data | | **Encryption** | Not enough data | Not enough data | Not enough data | #### Support | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Multi-Model** | Not enough data | Not enough data | Not enough data | | **BI Connectors** | Not enough data | Not enough data | Not enough data | | **Operating Systems** | Not enough data | Not enough data | Not enough data | ### Columnar Databases | Product | Score | Reviews | |---|---|---| | **IBM Db2** | N/A | N/A | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Storage | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Model** | Not enough data | Not enough data | Not enough data | | **Data Types** | Not enough data | Not enough data | Not enough data | #### Availability | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Auto Sharding** | Not enough data | Not enough data | Not enough data | | **Auto Recovery** | Not enough data | Not enough data | Not enough data | | **Data Replication** | Not enough data | Not enough data | Not enough data | #### Performance | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Integrated Cache** | Not enough data | Not enough data | Not enough data | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Role-Based Authorization** | Not enough data | Not enough data | Not enough data | | **Authentication** | Not enough data | Not enough data | Not enough data | | **Audit Logs** | Not enough data | Not enough data | Not enough data | | **Encryption** | Not enough data | Not enough data | Not enough data | #### Support | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Multi-Model** | Not enough data | Not enough data | Not enough data | | **Operating Systems** | Not enough data | Not enough data | Not enough data | ### Data Warehouse Automation | Product | Score | Reviews | |---|---|---| | **IBM Db2** | 8.0/10 | 11 | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Automation | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Workflow Automation** | 8.3 (9 reviews) | Not enough data | Not enough data | | **Multi-platform support** | 8.1 (9 reviews) | Not enough data | Not enough data | | **Data Management** | 8.3 (9 reviews) | Not enough data | Not enough data | | **Data Simplicity** | 8.5 (9 reviews) | Not enough data | Not enough data | #### Functionality | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Documentation management** | 7.4 (9 reviews) | Not enough data | Not enough data | | **Platform support** | 8.1 (9 reviews) | Not enough data | Not enough data | | **Template functionality** | 8.0 (9 reviews) | Not enough data | Not enough data | #### Administration | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Error Alerts** | 8.3 (8 reviews) | Not enough data | Not enough data | | **Service Automation** | 7.7 (8 reviews) | Not enough data | Not enough data | | **Workflow management** | 7.7 (8 reviews) | Not enough data | Not enough data | #### Agentic AI - Data Warehouse Automation | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Proactive Assistance** | Not enough data | Not enough data | Not enough data | ### Database as a Service (DBaaS) | Product | Score | Reviews | |---|---|---| | **IBM Db2** | 8.7/10 | 78 | | **Google Cloud Firestore** | 8.5/10 | 24 | | **Azure Cosmos DB** | 7.8/10 | 21 | #### Configuration | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Application Performance** | 8.5 (65 reviews) | 9.1 (23 reviews) | 8.6 (16 reviews) | | **Orchestration** | 8.1 (60 reviews) | 7.7 (22 reviews) | 7.8 (15 reviews) | | **Database Monitoring** | 8.5 (66 reviews) | 8.3 (22 reviews) | 8.3 (15 reviews) | | **Anomaly Detection** | 8.3 (61 reviews) | 7.9 (20 reviews) | 7.2 (9 reviews) | | **Network Security** | 8.6 (62 reviews) | 8.4 (21 reviews) | 8.7 (15 reviews) | #### Database Administration | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Provisioning** | 8.6 (60 reviews) | 9.1 (20 reviews) | 8.4 (15 reviews) | | **Governance** | 8.8 (60 reviews) | 8.2 (21 reviews) | 7.6 (9 reviews) | | **Auditing** | 8.8 (59 reviews) | 8.5 (21 reviews) | 7.1 (8 reviews) | #### Availability | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Scalability** | 8.9 (63 reviews) | 9.2 (22 reviews) | 8.9 (16 reviews) | | **Backup** | 9.1 (62 reviews) | 8.7 (21 reviews) | 8.3 (16 reviews) | | **Archiving** | 8.8 (63 reviews) | 8.8 (20 reviews) | 8.4 (15 reviews) | | **Indexing** | 8.9 (63 reviews) | 8.3 (22 reviews) | 8.6 (16 reviews) | #### Security | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Masking** | 8.4 (41 reviews) | 8.5 (20 reviews) | 7.2 (6 reviews) | | **Authentication And Single Sign-On** | 8.8 (42 reviews) | 8.3 (22 reviews) | 7.2 (6 reviews) | | **Data Anonymization** | 8.8 (41 reviews) | 8.3 (20 reviews) | 5.6 (6 reviews) | #### Data Management | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Data Replication** | 8.7 (45 reviews) | 8.8 (21 reviews) | 8.1 (7 reviews) | | **Advanced Data Analytics** | 8.6 (44 reviews) | 8.7 (20 reviews) | 7.4 (7 reviews) | ### NoSQL Databases | Product | Score | Reviews | |---|---|---| | **IBM Db2** | 8.7/10 | 366 | | **Google Cloud Firestore** | N/A | N/A | | **Azure Cosmos DB** | N/A | N/A | #### Database Features | Feature | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Storage** | 8.7 (306 reviews) | Not enough data | Not enough data | | **Availability** | 8.8 (309 reviews) | Not enough data | Not enough data | | **Stability** | 8.8 (309 reviews) | Not enough data | Not enough data | | **Scalability** | 8.4 (304 reviews) | Not enough data | Not enough data | | **Security** | 8.8 (302 reviews) | Not enough data | Not enough data | | **Data Manipulation** | 8.4 (303 reviews) | Not enough data | Not enough data | | **Query Language** | 8.4 (308 reviews) | Not enough data | Not enough data | --- ## Categories **Shared Categories (1):** [Database as a Service (DBaaS) Providers](https://www.g2.com/categories/database-as-a-service-dbaas) **Unique to IBM Db2 (5):** [Relational Databases](https://www.g2.com/categories/relational-databases), [Data Warehouse Solutions](https://www.g2.com/categories/data-warehouse), [Object-Oriented Databases](https://www.g2.com/categories/object-oriented-databases), [XML Databases](https://www.g2.com/categories/xml-databases), [Data Warehouse Automation Software](https://www.g2.com/categories/data-warehouse-automation) **Unique to Google Cloud Firestore (1):** [Document Databases](https://www.g2.com/categories/document-databases) **Unique to Azure Cosmos DB (4):** [Key Value Databases](https://www.g2.com/categories/key-value-databases), [Document Databases](https://www.g2.com/categories/document-databases), [Graph Databases](https://www.g2.com/categories/graph-databases), [Columnar Databases](https://www.g2.com/categories/columnar-databases) --- ## Reviewer Demographics ### By Company Size | Segment | IBM Db2 | Google Cloud Firestore | Azure Cosmos DB | |---|---|---|---| | **Small-Business** | 13.6% | 53.1% | 30.5% | | **Mid-Market** | 20.4% | 30.2% | 27.1% | | **Enterprise** | 66.0% | 16.7% | 42.4% | ### By Industry #### IBM Db2 - **Information Technology and Services:** 21.6% - **Banking:** 11.7% - **Computer Software:** 10.1% - **Financial Services:** 7.2% - **Insurance:** 5.9% - **Retail:** 4.7% - **Hospital & Health Care:** 3.7% - **Government Administration:** 3.5% - **Automotive:** 2.2% - **Transportation/Trucking/Railroad:** 1.8% - **Other:** 27.6% #### Google Cloud Firestore - **Computer Software:** 22.9% - **Information Technology and Services:** 12.5% - **Education Management:** 10.4% - **Higher Education:** 4.2% - **Accounting:** 3.1% - **Financial Services:** 3.1% - **Hospital & Health Care:** 3.1% - **Automotive:** 2.1% - **Banking:** 2.1% - **Computer & Network Security:** 2.1% - **Other:** 34.4% #### Azure Cosmos DB - **Information Technology and Services:** 23.7% - **Computer Software:** 20.3% - **Internet:** 8.5% - **Retail:** 5.1% - **Computer & Network Security:** 3.4% - **Consumer Services:** 3.4% - **Education Management:** 3.4% - **Gambling & Casinos:** 3.4% - **Accounting:** 1.7% - **Airlines/Aviation:** 1.7% - **Other:** 25.4% --- ## Alternatives ### Alternatives to IBM Db2 - [Oracle Database](https://www.g2.com/products/oracle-database/reviews) — 4.3/5 stars (1010 reviews) - [Amazon Relational Database Service (RDS)](https://www.g2.com/products/amazon-relational-database-service-rds/reviews) — 4.5/5 stars (907 reviews) - [SAP HANA Cloud](https://www.g2.com/products/sap-hana-cloud-2025-10-01/reviews) — 4.3/5 stars (621 reviews) - [Teradata Vantage](https://www.g2.com/products/teradata-teradata-vantage/reviews) — 4.3/5 stars (373 reviews) - [Microsoft SQL Server](https://www.g2.com/products/microsoft-sql-server/reviews) — 4.4/5 stars (2276 reviews) - [MySQL](https://www.g2.com/products/mysql/reviews) — 4.4/5 stars (1675 reviews) - [Google Cloud BigQuery](https://www.g2.com/products/google-cloud-bigquery/reviews) — 4.5/5 stars (1235 reviews) - [Snowflake](https://www.g2.com/products/snowflake/reviews) — 4.6/5 stars (749 reviews) - [PostgreSQL](https://www.g2.com/products/postgresql/reviews) — 4.4/5 stars (678 reviews) - [Amazon Redshift](https://www.g2.com/products/amazon-redshift/reviews) — 4.3/5 stars (401 reviews) ### Alternatives to Google Cloud Firestore - [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (530 reviews) - [MongoDB Atlas](https://www.g2.com/products/mongodb-atlas/reviews) — 4.5/5 stars (370 reviews) - [MongoDB](https://www.g2.com/products/mongodb/reviews) — 4.5/5 stars (555 reviews) - [Amazon Relational Database Service (RDS)](https://www.g2.com/products/amazon-relational-database-service-rds/reviews) — 4.5/5 stars (907 reviews) - [Redis Software](https://www.g2.com/products/redis-software/reviews) — 4.5/5 stars (134 reviews) - [Couchbase](https://www.g2.com/products/couchbase/reviews) — 4.3/5 stars (150 reviews) - [Amazon DocumentDB](https://www.g2.com/products/amazon-documentdb/reviews) — 4.3/5 stars (44 reviews) - [Amazon Timestream](https://www.g2.com/products/amazon-timestream/reviews) — 3.7/5 stars (22 reviews) - [Amazon Aurora](https://www.g2.com/products/amazon-aurora/reviews) — 4.5/5 stars (457 reviews) - [Oracle Database](https://www.g2.com/products/oracle-database/reviews) — 4.3/5 stars (1010 reviews) ### Alternatives to Azure Cosmos DB - [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (530 reviews) - [Arango](https://www.g2.com/products/arango/reviews) — 4.6/5 stars (115 reviews) - [Redis Software](https://www.g2.com/products/redis-software/reviews) — 4.5/5 stars (134 reviews) - [MongoDB Atlas](https://www.g2.com/products/mongodb-atlas/reviews) — 4.5/5 stars (370 reviews) - [Neo4j Graph Database](https://www.g2.com/products/neo4j-graph-database/reviews) — 4.5/5 stars (133 reviews) - [Snowflake](https://www.g2.com/products/snowflake/reviews) — 4.6/5 stars (749 reviews) - [Amazon Neptune](https://www.g2.com/products/amazon-neptune/reviews) — 4.4/5 stars (30 reviews) - [MongoDB](https://www.g2.com/products/mongodb/reviews) — 4.5/5 stars (555 reviews) - [Amazon Relational Database Service (RDS)](https://www.g2.com/products/amazon-relational-database-service-rds/reviews) — 4.5/5 stars (907 reviews) - [Google Cloud BigQuery](https://www.g2.com/products/google-cloud-bigquery/reviews) — 4.5/5 stars (1235 reviews) --- ## Top Discussions ### IBM Db2 - Title: [Where can I find answers to other questions I may have?](https://www.g2.com/discussions/faqs-6eb88878-1fbd-4fb6-aea7-4134624eebc7) — 2 comments, 1 upvote *(includes official response)* > **Top comment:** "Please visit: https://developer.ibm.com/answers/questions/436870/common-questions-about-the-db2-on-cloud-free-plan/" - Title: [What is IBM Db2 used for?](https://www.g2.com/discussions/what-is-ibm-db2-used-for) — 1 comment > **Top comment:** "It is a name of the database which is used in IBM I system." - Title: [What does Ibm Dashdb do?](https://www.g2.com/discussions/what-does-ibm-dashdb-do) — 1 comment > **Top comment:** "IBM dashDB is a fully managed in-memory cloud data warehousing service for developers, database administrators, business analysts, data scientists and more." - Title: [What is IBM doing to facilitate connections with Db2 and cloud platforms of their own?](https://www.g2.com/discussions/what-is-ibm-doing-to-facilitate-connections-with-db2-and-cloud-platforms-of-their-own) — 1 comment, 1 upvote > **Top comment:** "IBM is changing the SQL model internal to the DB2 platform, allowing all databases that utilize query tools like Python, SQL, etc. to utilize ALL commands..." - Title: [Which tool do you use for deep monitoring of IBM DB2 databases (instances) ?](https://www.g2.com/discussions/which-tool-do-you-use-for-deep-monitoring-of-ibm-db2-databases-instances) — 1 comment, 1 upvote > **Top comment:** "Maxim, we have a dedicated management console that comes free with Db2. It was called Data Server Manager in the past, now we call it the Unified Management..." ### Google Cloud Firestore - Title: [What is Google Cloud Firestore used for?](https://www.g2.com/discussions/what-is-google-cloud-firestore-used-for) — 1 comment > **Top comment:** "this is a no sql database similar like mongo , it is available in google cloud with two different mode " ### Azure Cosmos DB No discussions available for this product. --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/ibm-db2-vs-google-cloud-firestore-vs-azure-cosmos-db)