# Google Cloud Spanner, MongoDB Atlas vs Azure Cosmos DB Comparison

| | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Star Rating** | 4.2 out of 5 | 4.5 out of 5 | 4.2 out of 5 | 
| **Total Reviews** | 36 | 370 | 68 | 
| **Largest Market Segment** | Enterprise (41.9% of reviews) | Small-Business (57.8% of reviews) | Enterprise (42.4% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Google Cloud Spanner

**Not enough data**

### MongoDB Atlas

Pros:
- Ease of Use (7 reviews)
- Scalability (5 reviews)

Cons:
- Expensive Pricing (3 reviews)
- Unclear Pricing (3 reviews)

### Azure Cosmos DB

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

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

---
## Ratings Comparison
| Rating | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
  | **Meets Requirements** | 8.7 (24 reviews) | 8.9 (271 reviews) | 8.5 (48 reviews) | 
  | **Ease of Use** | 7.8 (24 reviews) | 9.0 (274 reviews) | 8.2 (48 reviews) | 
  | **Ease of Setup** | 8.2 (10 reviews) | 9.1 (104 reviews) | 8.0 (22 reviews) | 
  | **Ease of Admin** | 8.7 (9 reviews) | 8.7 (96 reviews) | 7.7 (23 reviews) | 
  | **Quality of Support** | 8.6 (20 reviews) | 8.7 (242 reviews) | 8.2 (46 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.3 (10 reviews) | 8.8 (91 reviews) | 8.3 (22 reviews) | 
  | **Product Direction (% positive)** | 8.4 (22 reviews) | 9.3 (267 reviews) | 9.0 (47 reviews) | 

---
## Pricing

### Google Cloud Spanner

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### MongoDB Atlas

#### 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

### Business Intelligence

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | 8.6/10 | 62 |
| **Azure Cosmos DB** | N/A | N/A |

#### Reports

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Reports Interface** | Not enough data | 8.2 (51 reviews) | Not enough data | 
| **Steps to Answer** | Not enough data | 8.2 (49 reviews) | Not enough data | 
| **Graphs and Charts** | Not enough data | 8.9 (57 reviews) | Not enough data | 
| **Score Cards** | Not enough data | 8.9 (46 reviews) | Not enough data | 
| **Dashboards** | Not enough data | 8.9 (55 reviews) | Not enough data | 

#### Self Service 

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Calculated Fields** | Not enough data | Not enough data | Not enough data | 
| **Data Column Filtering** | Not enough data | Not enough data | Not enough data | 
| **Data Discovery** | Not enough data | Not enough data | Not enough data | 
| **Search** | Not enough data | Not enough data | Not enough data | 
| **Collaboration / Workflow** | Not enough data | Not enough data | Not enough data | 
| **Automodeling** | Not enough data | Not enough data | Not enough data | 

#### Advanced Analytics

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Predictive Analytics** | Not enough data | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | Not enough data | 
| **Big Data Services** | Not enough data | Not enough data | Not enough data | 

#### Building Reports

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Data Transformation** | Not enough data | Not enough data | Not enough data | 
| **Data Modeling** | Not enough data | Not enough data | Not enough data | 
| **WYSIWYG Report Design** | Not enough data | Not enough data | Not enough data | 
| **Integration APIs** | Not enough data | Not enough data | Not enough data | 

#### Platform

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Mobile User Support** | Not enough data | Not enough data | Not enough data | 
| **Customization ** | Not enough data | Not enough data | Not enough data | 
| **User, Role, and Access Management** | Not enough data | Not enough data | Not enough data | 
| **Internationalization** | Not enough data | Not enough data | Not enough data | 
| **Sandbox / Test Environments** | Not enough data | Not enough data | Not enough data | 
| **Performance and Reliability** | Not enough data | Not enough data | Not enough data | 
| **Breadth of Partner Applications** | Not enough data | Not enough data | Not enough data | 

### Data Visualization

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | 8.6/10 | 64 |
| **Azure Cosmos DB** | N/A | N/A |

#### Reports

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Reports Interface** | Not enough data | 8.2 (51 reviews) | Not enough data | 
| **Steps to Answer** | Not enough data | 8.2 (49 reviews) | Not enough data | 
| **Graphs and Charts** | Not enough data | 8.9 (57 reviews) | Not enough data | 
| **Score Cards** | Not enough data | 8.9 (46 reviews) | Not enough data | 
| **Dashboards** | Not enough data | 8.9 (55 reviews) | Not enough data | 

#### Reports

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Reports Interface** | Not enough data | 8.6 (53 reviews) | Not enough data | 
| **Share Reports** | Not enough data | 8.6 (51 reviews) | Not enough data | 
| **Steps to Answer** | Not enough data | 7.9 (48 reviews) | Not enough data | 

#### Generative AI

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | Not enough data | 

#### Visualization

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Graphs and Charts** | Not enough data | 9.0 (56 reviews) | Not enough data | 
| **Score Cards** | Not enough data | 8.4 (46 reviews) | Not enough data | 
| **Dashboards** | Not enough data | 9.2 (55 reviews) | Not enough data | 
| **Formats** | Not enough data | 8.5 (49 reviews) | Not enough data | 

#### Data Updates

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Historical Snapshots** | Not enough data | 8.6 (46 reviews) | Not enough data | 
| **Real-Time Updating** | Not enough data | 8.7 (54 reviews) | Not enough data | 

#### Collaboration

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Sharing** | Not enough data | 8.6 (49 reviews) | Not enough data | 
| **Co-Editing** | Not enough data | 8.5 (43 reviews) | Not enough data | 
| **Devices** | Not enough data | 8.1 (47 reviews) | Not enough data | 

#### Data Updates

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Historical Snapshots** | Not enough data | 8.6 (44 reviews) | Not enough data | 
| **Real-Time Updating** | Not enough data | 8.7 (50 reviews) | Not enough data | 
| **Email Reports** | Not enough data | 8.3 (46 reviews) | Not enough data | 

### Relational Databases

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | 8.7/10 | 16 |
| **MongoDB Atlas** | N/A | N/A |
| **Azure Cosmos DB** | N/A | N/A |

#### Management 

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Data Schema** | 8.1 (6 reviews) | Not enough data | Not enough data | 
| **Query Language** | 8.9 (6 reviews) | Not enough data | Not enough data | 
| **ACID - Complaint** | 9.2 (6 reviews) | Not enough data | Not enough data | 
| **Data Replication** | 9.2 (6 reviews) | Not enough data | Not enough data | 

#### Support 

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Text Search** | 8.7 (5 reviews) | Not enough data | Not enough data | 
| **Data Types** | 8.3 (6 reviews) | Not enough data | Not enough data | 
| **Languages** | Not enough data | Not enough data | Not enough data | 
| **Operating Systems** | 8.6 (6 reviews) | Not enough data | Not enough data | 

#### Security

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Database Locking** | 8.7 (5 reviews) | Not enough data | Not enough data | 
| **Access Control** | 8.7 (5 reviews) | Not enough data | Not enough data | 
| **Encryption** | 9.4 (6 reviews) | Not enough data | Not enough data | 
| **Authentication** | 9.2 (6 reviews) | Not enough data | Not enough data | 

#### Performance 

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Disaster Recovery** | 7.8 (6 reviews) | Not enough data | Not enough data | 
| **Data Concurrency** | 9.2 (6 reviews) | Not enough data | Not enough data | 
| **Workload Management** | 8.9 (6 reviews) | Not enough data | Not enough data | 
| **Advanced Indexing** | 7.5 (6 reviews) | Not enough data | Not enough data | 
| **Query Optimizer** | 8.7 (5 reviews) | Not enough data | Not enough data | 

#### Database Features

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Storage** | 9.5 (13 reviews) | Not enough data | Not enough data | 
| **Availability** | 8.6 (13 reviews) | Not enough data | Not enough data | 
| **Stability** | 9.0 (13 reviews) | Not enough data | Not enough data | 
| **Scalability** | 9.2 (13 reviews) | Not enough data | Not enough data | 
| **Security** | 8.9 (12 reviews) | Not enough data | Not enough data | 
| **Data Manipulation** | 8.3 (13 reviews) | Not enough data | Not enough data | 
| **Query Language** | 8.6 (13 reviews) | Not enough data | Not enough data | 

### Key Value Databases

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | N/A | N/A |
| **Azure Cosmos DB** | N/A | N/A |

#### Data Management

| Feature | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Integrated Cache** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | 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 |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | 8.9/10 | 62 |
| **Azure Cosmos DB** | 7.7/10 | 7 |

#### Data Management

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Data Model** | Not enough data | 9.2 (57 reviews) | 8.3 (6 reviews) | 
| **Data Types** | Not enough data | 9.3 (56 reviews) | 7.8 (6 reviews) | 
| **Built - In Search** | Not enough data | 8.6 (54 reviews) | 7.0 (5 reviews) | 
| **Event Triggers** | Not enough data | 8.7 (50 reviews) | 7.7 (5 reviews) | 

#### Availability

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Auto Sharding** | Not enough data | 8.9 (48 reviews) | 7.3 (5 reviews) | 
| **Auto Recovery** | Not enough data | 8.6 (49 reviews) | 7.3 (5 reviews) | 
| **Data Replication** | Not enough data | 9.0 (52 reviews) | 8.7 (5 reviews) | 

#### Performance

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Query Optimization** | Not enough data | 8.5 (55 reviews) | 6.7 (6 reviews) | 

#### Security

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Role-Based Authorization** | Not enough data | 9.0 (55 reviews) | 8.1 (6 reviews) | 
| **Authentication** | Not enough data | 9.2 (56 reviews) | 7.7 (5 reviews) | 
| **Audit Logs** | Not enough data | 8.8 (51 reviews) | 7.3 (5 reviews) | 
| **Encryption** | Not enough data | 9.0 (53 reviews) | 8.0 (5 reviews) | 

#### Support

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Multi-Model** | Not enough data | 8.5 (52 reviews) | Not enough data | 
| **Operating Systems** | Not enough data | 9.2 (50 reviews) | Not enough data | 
| **BI Connectors** | Not enough data | 8.7 (40 reviews) | Not enough data | 

### Graph Databases

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | N/A | N/A |
| **Azure Cosmos DB** | N/A | N/A |

#### Data Management

| Feature | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Query Optimization** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | 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 |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | N/A | N/A |
| **Azure Cosmos DB** | N/A | N/A |

#### Storage

| Feature | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Integrated Cache** | Not enough data | Not enough data | Not enough data | 

#### Security

| Feature | Google Cloud Spanner | MongoDB Atlas | 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 | Google Cloud Spanner | MongoDB Atlas | 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 | 

### Database as a Service (DBaaS)

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | 7.6/10 | 12 |
| **MongoDB Atlas** | 8.8/10 | 161 |
| **Azure Cosmos DB** | 7.8/10 | 21 |

#### Configuration

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Application Performance** | 8.2 (10 reviews) | 9.2 (136 reviews) | 8.6 (16 reviews) | 
| **Orchestration** | 7.6 (9 reviews) | 8.5 (117 reviews) | 7.8 (15 reviews) | 
| **Database Monitoring** | 7.3 (10 reviews) | 9.0 (129 reviews) | 8.3 (15 reviews) | 
| **Anomaly Detection** | 8.1 (8 reviews) | 8.3 (109 reviews) | 7.2 (9 reviews) | 
| **Network Security** | 8.1 (8 reviews) | 9.0 (122 reviews) | 8.7 (15 reviews) | 

#### Database Administration

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Provisioning** | 8.2 (10 reviews) | 8.8 (126 reviews) | 8.4 (15 reviews) | 
| **Governance** | 6.3 (10 reviews) | 8.8 (116 reviews) | 7.6 (9 reviews) | 
| **Auditing** | 7.0 (10 reviews) | 8.6 (110 reviews) | 7.1 (8 reviews) | 

#### Availability

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Scalability** | 8.8 (10 reviews) | 9.2 (129 reviews) | 8.9 (16 reviews) | 
| **Backup** | 6.7 (9 reviews) | 8.8 (126 reviews) | 8.3 (16 reviews) | 
| **Archiving** | 7.0 (10 reviews) | 8.5 (113 reviews) | 8.4 (15 reviews) | 
| **Indexing** | 8.1 (9 reviews) | 9.0 (128 reviews) | 8.6 (16 reviews) | 

#### Security

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Data Masking** | Not enough data | 8.7 (74 reviews) | 7.2 (6 reviews) | 
| **Authentication And Single Sign-On** | Not enough data | 9.0 (80 reviews) | 7.2 (6 reviews) | 
| **Data Anonymization** | Not enough data | 8.7 (72 reviews) | 5.6 (6 reviews) | 

#### Data Management

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Data Replication** | Not enough data | 8.7 (79 reviews) | 8.1 (7 reviews) | 
| **Advanced Data Analytics** | Not enough data | 8.8 (68 reviews) | 7.4 (7 reviews) | 

### NoSQL Databases

| Product | Score | Reviews |
|---|---|---|
| **Google Cloud Spanner** | N/A | N/A |
| **MongoDB Atlas** | N/A | N/A |
| **Azure Cosmos DB** | N/A | N/A |

#### Database Features

| Feature | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Storage** | 9.5 (13 reviews) | Not enough data | Not enough data | 
| **Availability** | 8.6 (13 reviews) | Not enough data | Not enough data | 
| **Stability** | 9.0 (13 reviews) | Not enough data | Not enough data | 
| **Scalability** | 9.2 (13 reviews) | Not enough data | Not enough data | 
| **Security** | 8.9 (12 reviews) | Not enough data | Not enough data | 
| **Data Manipulation** | 8.3 (13 reviews) | Not enough data | Not enough data | 
| **Query Language** | 8.6 (13 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 Google Cloud Spanner (1):** [Relational Databases](https://www.g2.com/categories/relational-databases)

**Unique to MongoDB Atlas (2):** [Document Databases](https://www.g2.com/categories/document-databases), [Data Visualization Tools](https://www.g2.com/categories/data-visualization-tools)

**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 | Google Cloud Spanner | MongoDB Atlas | Azure Cosmos DB | 
|---|---|---|---|
| **Small-Business** | 32.3% | 57.8% | 30.5% | 
| **Mid-Market** | 25.8% | 25.1% | 27.1% | 
| **Enterprise** | 41.9% | 17.1% | 42.4% | 

### By Industry

#### Google Cloud Spanner

- **Information Technology and Services:** 20.0%
- **Computer Software:** 16.7%
- **Transportation/Trucking/Railroad:** 6.7%
- **Biotechnology:** 6.7%
- **Airlines/Aviation:** 3.3%
- **Automotive:** 3.3%
- **Building Materials:** 3.3%
- **Computer Games:** 3.3%
- **Consumer Services:** 3.3%
- **Education Management:** 3.3%
- **Other:** 30.0%

#### MongoDB Atlas

- **Computer Software:** 29.8%
- **Information Technology and Services:** 22.0%
- **Higher Education:** 4.0%
- **Education Management:** 4.0%
- **Financial Services:** 3.2%
- **Consumer Services:** 2.0%
- **Telecommunications:** 1.7%
- **Internet:** 1.4%
- **Insurance:** 1.4%
- **Marketing and Advertising:** 1.4%
- **Other:** 28.9%

#### 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 Google Cloud Spanner

- [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)
- [PostgreSQL](https://www.g2.com/products/postgresql/reviews) — 4.4/5 stars (678 reviews)
- [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (530 reviews)
- [Amazon Relational Database Service (RDS)](https://www.g2.com/products/amazon-relational-database-service-rds/reviews) — 4.5/5 stars (907 reviews)
- [MySQL](https://www.g2.com/products/mysql/reviews) — 4.4/5 stars (1675 reviews)
- [Neo4j Graph Database](https://www.g2.com/products/neo4j-graph-database/reviews) — 4.5/5 stars (133 reviews)
- [Microsoft SQL Server](https://www.g2.com/products/microsoft-sql-server/reviews) — 4.4/5 stars (2279 reviews)
- [SAP HANA Cloud](https://www.g2.com/products/sap-hana-cloud-2025-10-01/reviews) — 4.3/5 stars (621 reviews)
- [IBM Db2](https://www.g2.com/products/ibm-db2/reviews) — 4.1/5 stars (682 reviews)

### Alternatives to MongoDB Atlas

- [Amazon DynamoDB](https://www.g2.com/products/amazon-web-services-aws-amazon-dynamodb/reviews) — 4.4/5 stars (530 reviews)
- [Google Cloud Firestore](https://www.g2.com/products/google-cloud-firestore/reviews) — 4.2/5 stars (97 reviews)
- [Amazon DocumentDB](https://www.g2.com/products/amazon-documentdb/reviews) — 4.3/5 stars (44 reviews)
- [Amazon Relational Database Service (RDS)](https://www.g2.com/products/amazon-relational-database-service-rds/reviews) — 4.5/5 stars (907 reviews)
- [DigitalOcean](https://www.g2.com/products/digitalocean/reviews) — 4.6/5 stars (749 reviews)
- [Amazon Aurora](https://www.g2.com/products/amazon-aurora/reviews) — 4.5/5 stars (457 reviews)
- [Google Cloud SQL](https://www.g2.com/products/google-cloud-sql/reviews) — 4.5/5 stars (366 reviews)
- [Azure SQL Database](https://www.g2.com/products/azure-sql-database/reviews) — 4.5/5 stars (241 reviews)
- [Oracle Database](https://www.g2.com/products/oracle-database/reviews) — 4.3/5 stars (1010 reviews)
- [Google Cloud BigTable](https://www.g2.com/products/google-cloud-bigtable/reviews) — 4.4/5 stars (41 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)
- [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 (753 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)
- [MongoDB](https://www.g2.com/products/mongodb/reviews) — 4.5/5 stars (556 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 (1227 reviews)

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## Top Discussions

### Google Cloud Spanner

No discussions available for this product.

### MongoDB Atlas

- Title: [can we axpect more feature available to students as developerss it would be verry helpful](https://www.g2.com/discussions/can-we-axpect-more-feature-available-to-students-as-developerss-it-would-be-verry-helpful) — 4 comments, 1 upvote
  > **Top comment:** "yes."
- Title: [Is MongoDB Atlas free?](https://www.g2.com/discussions/is-mongodb-atlas-free) — 3 comments
  > **Top comment:** "No it's not free - it's MongoDB's end to end management service "
- Title: [What is the difference between MongoDB and Mongodb Atlas?](https://www.g2.com/discussions/what-is-the-difference-between-mongodb-and-mongodb-atlas) — 2 comments
  > **Top comment:** "MongoDB is the Database only.  You can run MongoDB in your machine or in a server, but you would need to manage it. 
MongoDB Atlas is the Database as a..."
- Title: [How does MongoDB Atlas handle backups?](https://www.g2.com/discussions/backups) — 2 comments, 1 upvote *(includes official response)*
  > **Top comment:** "Continuous Backup:

MongoDB Atlas continuously backs up your data, ensuring your backups are just a few seconds behind the operational system. The platform..."
- Title: [What scale does MongoDB Atlas support?](https://www.g2.com/discussions/scalability-6bf8928f-a43e-41fa-a268-080310558f58) — 2 comments, 1 upvote *(includes official response)*
  > **Top comment:** "MongoDB is one of the most scalable databases on the planet, and MongoDB Atlas brings you that same scalability, but with us managing it for you:

You can..."

### Azure Cosmos DB

No discussions available for this product.

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