# Azure Cosmos DB, MongoDB vs Cassandra Comparison

| | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Star Rating** | 4.2 out of 5 | 4.5 out of 5 | 4.1 out of 5 | 
| **Total Reviews** | 68 | 554 | 35 | 
| **Largest Market Segment** | Enterprise (42.4% of reviews) | Small-Business (38.0% of reviews) | Enterprise (48.5% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Azure Cosmos DB

Pros:
- Ease of Use (4 reviews)
- Features (3 reviews)

Cons:
- Expensive (3 reviews)
- Cost Issues (2 reviews)

### MongoDB

Pros:
- Ease of Use (12 reviews)
- Flexibility (11 reviews)

Cons:
- Difficult Learning (6 reviews)
- Query Complexity (5 reviews)

### Cassandra

**Not enough data**

---
## Ratings Comparison
| Rating | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
  | **Meets Requirements** | 8.5 (48 reviews) | 8.8 (430 reviews) | 8.3 (29 reviews) | 
  | **Ease of Use** | 8.2 (48 reviews) | 8.7 (431 reviews) | 7.8 (29 reviews) | 
  | **Ease of Setup** | 8.0 (22 reviews) | 8.5 (204 reviews) | 8.2 (18 reviews) | 
  | **Ease of Admin** | 7.7 (23 reviews) | 8.1 (179 reviews) | 7.9 (16 reviews) | 
  | **Quality of Support** | 8.2 (46 reviews) | 8.5 (375 reviews) | 7.5 (24 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.3 (22 reviews) | 8.5 (159 reviews) | 7.4 (13 reviews) | 
  | **Product Direction (% positive)** | 9.0 (47 reviews) | 9.1 (410 reviews) | 6.9 (26 reviews) | 

---
## Pricing

### Azure Cosmos DB

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### MongoDB

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Cassandra

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Key Value Databases

| Product | Score | Reviews |
|---|---|---|
| **Azure Cosmos DB** | N/A | N/A |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Data Management

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Model** | Not enough data | Not enough data | Not enough data | 
| **Data Types** | Not enough data | Not enough data | Not enough data | 

#### Availability

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Integrated Cache** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Role-Based Authorization** | Not enough data | Not enough data | Not enough data | 
| **Authentication** | Not enough data | Not enough data | Not enough data | 
| **Audit Logs** | Feature Not Available | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | Not enough data | 

#### Support

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 |
|---|---|---|
| **Azure Cosmos DB** | 7.7/10 | 7 |
| **MongoDB** | 8.6/10 | 115 |
| **Cassandra** | N/A | N/A |

#### Data Management

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Model** | 8.3 (6 reviews) | 8.9 (102 reviews) | Not enough data | 
| **Data Types** | 7.8 (6 reviews) | 8.9 (94 reviews) | Not enough data | 
| **Built - In Search** | 7.0 (5 reviews) | 8.5 (86 reviews) | Not enough data | 
| **Event Triggers** | 7.7 (5 reviews) | 8.5 (83 reviews) | Not enough data | 

#### Availability

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Auto Sharding** | 7.3 (5 reviews) | 8.3 (81 reviews) | Not enough data | 
| **Auto Recovery** | 7.3 (5 reviews) | 8.3 (82 reviews) | Not enough data | 
| **Data Replication** | 8.7 (5 reviews) | 8.6 (84 reviews) | Not enough data | 

#### Performance

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Query Optimization** | 6.7 (6 reviews) | 8.6 (88 reviews) | Not enough data | 

#### Security

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Role-Based Authorization** | 8.1 (6 reviews) | 8.4 (84 reviews) | Not enough data | 
| **Authentication** | 7.7 (5 reviews) | 8.7 (88 reviews) | Not enough data | 
| **Audit Logs** | 7.3 (5 reviews) | 8.5 (83 reviews) | Not enough data | 
| **Encryption** | 8.0 (5 reviews) | 8.6 (81 reviews) | Not enough data | 

#### Support

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Multi-Model** | Not enough data | 8.6 (82 reviews) | Not enough data | 
| **Operating Systems** | Not enough data | 8.9 (84 reviews) | Not enough data | 
| **BI Connectors** | Not enough data | 8.0 (69 reviews) | Not enough data | 

### Graph Databases

| Product | Score | Reviews |
|---|---|---|
| **Azure Cosmos DB** | N/A | N/A |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Data Management

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Auto Sharding** | Not enough data | Not enough data | Not enough data | 
| **Auto Recovery** | Not enough data | Not enough data | Not enough data | 

#### Performance

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Query Optimization** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 |
|---|---|---|
| **Azure Cosmos DB** | N/A | N/A |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Storage

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Model** | Not enough data | Not enough data | Not enough data | 
| **Data Types** | Not enough data | Not enough data | Not enough data | 

#### Availability

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Integrated Cache** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **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 | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Multi-Model** | Not enough data | Not enough data | Not enough data | 
| **Operating Systems** | Not enough data | Not enough data | Not enough data | 

### Wide Column Database

| Product | Score | Reviews |
|---|---|---|
| **Azure Cosmos DB** | N/A | N/A |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Storage

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Storage Method** | Not enough data | Not enough data | Not enough data | 

#### Scalability

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Database Scalability** | Not enough data | Not enough data | Not enough data | 
| **Auto Sharding** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Order Preserving Encryption** | Not enough data | Not enough data | Not enough data | 

#### Support

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Types Support** | Not enough data | Not enough data | Not enough data | 
| **Different Operating Systems** | Not enough data | Not enough data | Not enough data | 
| **Multi model Database Support** | Not enough data | Not enough data | Not enough data | 

#### Agentic AI - Wide Column Database

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Decision Making** | Not enough data | Not enough data | Not enough data | 

### AWS Marketplace

| Product | Score | Reviews |
|---|---|---|
| **Azure Cosmos DB** | N/A | N/A |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Agentic AI - AWS Marketplace

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 

### Database as a Service (DBaaS)

| Product | Score | Reviews |
|---|---|---|
| **Azure Cosmos DB** | 7.8/10 | 21 |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Configuration

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Application Performance** | 8.6 (16 reviews) | Not enough data | Not enough data | 
| **Orchestration** | 7.8 (15 reviews) | Not enough data | Not enough data | 
| **Database Monitoring** | 8.3 (15 reviews) | Not enough data | Not enough data | 
| **Anomaly Detection** | 7.2 (9 reviews) | Not enough data | Not enough data | 
| **Network Security** | 8.7 (15 reviews) | Not enough data | Not enough data | 

#### Database Administration

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Provisioning** | 8.4 (15 reviews) | Not enough data | Not enough data | 
| **Governance** | 7.6 (9 reviews) | Not enough data | Not enough data | 
| **Auditing** | 7.1 (8 reviews) | Not enough data | Not enough data | 

#### Availability

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Scalability** | 8.9 (16 reviews) | Not enough data | Not enough data | 
| **Backup** | 8.3 (16 reviews) | Not enough data | Not enough data | 
| **Archiving** | 8.4 (15 reviews) | Not enough data | Not enough data | 
| **Indexing** | 8.6 (16 reviews) | Not enough data | Not enough data | 

#### Security

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Masking** | 7.2 (6 reviews) | Not enough data | Not enough data | 
| **Authentication And Single Sign-On** | 7.2 (6 reviews) | Not enough data | Not enough data | 
| **Data Anonymization** | 5.6 (6 reviews) | Not enough data | Not enough data | 

#### Data Management

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Data Replication** | 8.1 (7 reviews) | Not enough data | Not enough data | 
| **Advanced Data Analytics** | 7.4 (7 reviews) | Not enough data | Not enough data | 

### NoSQL Databases

| Product | Score | Reviews |
|---|---|---|
| **Azure Cosmos DB** | N/A | N/A |
| **MongoDB** | N/A | N/A |
| **Cassandra** | N/A | N/A |

#### Database Features

| Feature | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Storage** | Not enough data | Not enough data | Not enough data | 
| **Availability** | Not enough data | Not enough data | Not enough data | 
| **Stability** | Not enough data | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | Not enough data | 
| **Security** | Not enough data | Not enough data | Not enough data | 
| **Data Manipulation** | Not enough data | Not enough data | Not enough data | 
| **Query Language** | Not enough data | Not enough data | Not enough data | 

---
## Categories

**Unique to Azure Cosmos DB (5):** [Database as a Service (DBaaS) Providers](https://www.g2.com/categories/database-as-a-service-dbaas), [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)

**Unique to MongoDB (2):** [Document Databases](https://www.g2.com/categories/document-databases), [AWS Marketplace Software](https://www.g2.com/categories/aws-marketplace)

**Unique to Cassandra (2):** [Wide Column Database Software](https://www.g2.com/categories/wide-column-database), [Key Value Databases](https://www.g2.com/categories/key-value-databases)


---
## Reviewer Demographics

### By Company Size

| Segment | Azure Cosmos DB | MongoDB | Cassandra | 
|---|---|---|---|
| **Small-Business** | 30.5% | 38.0% | 18.2% | 
| **Mid-Market** | 27.1% | 25.9% | 33.3% | 
| **Enterprise** | 42.4% | 36.1% | 48.5% | 

### By Industry

#### 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%

#### MongoDB

- **Computer Software:** 23.0%
- **Information Technology and Services:** 20.7%
- **Internet:** 5.0%
- **Financial Services:** 4.1%
- **Education Management:** 3.1%
- **Higher Education:** 2.3%
- **Telecommunications:** 2.3%
- **Retail:** 2.1%
- **Banking:** 2.1%
- **Computer & Network Security:** 1.7%
- **Other:** 33.5%

#### Cassandra

- **Information Technology and Services:** 30.3%
- **Internet:** 18.2%
- **Computer Software:** 12.1%
- **Retail:** 9.1%
- **Computer & Network Security:** 6.1%
- **Telecommunications:** 3.0%
- **Research:** 3.0%
- **Political Organization:** 3.0%
- **Marketing and Advertising:** 3.0%
- **Higher Education:** 3.0%
- **Other:** 9.1%

---
## Alternatives

### Alternatives to Azure Cosmos DB

- [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (529 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 (368 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 (735 reviews)
- [Google Cloud Firestore](https://www.g2.com/products/google-cloud-firestore/reviews) — 4.2/5 stars (97 reviews)
- [Amazon Neptune](https://www.g2.com/products/amazon-neptune/reviews) — 4.4/5 stars (30 reviews)
- [Amazon Relational Database Service (RDS)](https://www.g2.com/products/amazon-relational-database-service-rds/reviews) — 4.5/5 stars (906 reviews)
- [Google Cloud BigQuery](https://www.g2.com/products/google-cloud-bigquery/reviews) — 4.5/5 stars (1236 reviews)

### Alternatives to MongoDB

- [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (529 reviews)
- [Couchbase](https://www.g2.com/products/couchbase/reviews) — 4.3/5 stars (150 reviews)
- [Redis Software](https://www.g2.com/products/redis-software/reviews) — 4.5/5 stars (134 reviews)
- [Arango](https://www.g2.com/products/arango/reviews) — 4.6/5 stars (115 reviews)
- [Google Cloud Firestore](https://www.g2.com/products/google-cloud-firestore/reviews) — 4.2/5 stars (97 reviews)
- [Progress MarkLogic](https://www.g2.com/products/progress-marklogic/reviews) — 4.3/5 stars (65 reviews)
- [CouchDB](https://www.g2.com/products/couchdb/reviews) — 3.9/5 stars (64 reviews)
- [RethinkDB](https://www.g2.com/products/rethinkdb/reviews) — 4.3/5 stars (15 reviews)
- [OrientDB](https://www.g2.com/products/orientdb/reviews) — 3.9/5 stars (60 reviews)
- [RavenDB](https://www.g2.com/products/ravendb/reviews) — 4.4/5 stars (14 reviews)

### Alternatives to Cassandra

- [ScyllaDB](https://www.g2.com/products/scylladb/reviews) — 4.5/5 stars (427 reviews)
- [Redis Software](https://www.g2.com/products/redis-software/reviews) — 4.5/5 stars (134 reviews)
- [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (529 reviews)
- [Arango](https://www.g2.com/products/arango/reviews) — 4.6/5 stars (115 reviews)
- [Couchbase](https://www.g2.com/products/couchbase/reviews) — 4.3/5 stars (150 reviews)
- [OrientDB](https://www.g2.com/products/orientdb/reviews) — 3.9/5 stars (60 reviews)
- [Aerospike](https://www.g2.com/products/aerospike/reviews) — 4.4/5 stars (83 reviews)
- [Azure Table Storage](https://www.g2.com/products/azure-table-storage/reviews) — 4.3/5 stars (16 reviews)
- [Cloudera Data Platform](https://www.g2.com/products/cloudera-cloudera-data-platform/reviews) — 4.1/5 stars (136 reviews)
- [Amazon ElastiCache](https://www.g2.com/products/amazon-elasticache/reviews) — 4.5/5 stars (87 reviews)

---
## Top Discussions

### Azure Cosmos DB

No discussions available for this product.

### MongoDB

- Title: [What is MongoDB used for?](https://www.g2.com/discussions/what-is-mongodb-used-for) — 3 comments, 1 upvote
  > **Top comment:** "MongoDB is a NoSQL database, that works on concepts of documents, and collections rather than tables and relations. "
- Title: [Is MongoDB a software?](https://www.g2.com/discussions/is-mongodb-a-software) — 2 comments
  > **Top comment:** "It's a platform not moreover a software"
- Title: [How to make MongoDB to accept joins](https://www.g2.com/discussions/15671-how-to-make-mongodb-to-accept-joins) — 2 comments, 1 upvote
  > **Top comment:** "As MongoDB is a document oriented Database.  So data is distributed across different nodes and in order to apply joins, a data should be collected on a..."
- Title: [What is MongoDB and its advantages?](https://www.g2.com/discussions/what-is-mongodb-and-its-advantages) — 1 comment
  > **Top comment:** "Mongodb is nosql database. Which doesn't follow relational model , It is based on documents collection.Documents basically follows BSON i.e. binary JSON...."
- Title: [What can MongoDB be used for?](https://www.g2.com/discussions/what-can-mongodb-be-used-for) — 1 comment, 1 upvote
  > **Top comment:** "Database"

### Cassandra

No discussions available for this product.

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/azure-cosmos-db-vs-mongodb-vs-cassandra)