Azure Cosmos DB vs Amazon Relational Database Service (RDS) Comparison
Azure Cosmos DB
Starting at Contact for pricing
- Free Trial
- Large Enterprises
- Small Business
Introducing Azure Cosmos DB, the ultimate solution for meeting the dynamic needs of your applications. This advanced serverless database is designed to deliver top-tier performance for applications of all sizes and scale…
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Amazon Relational Database Service (RDS)
Starting at Contact for pricing
- Free Trial
- Large Enterprises
- Small Business
Introducing Amazon Relational Database Service (RDS), a robust software solution that simplifies the management, operation, and scalability of databases in the cloud. Tailored for various database engines, Amazon RDS com…
Amazon Relational Database Service (RDS) leads on user satisfaction with a 4.4-star rating across 240 reviews.
Azure Cosmos DB vs Amazon Relational Database Service (RDS) — at a glance
| Feature | Azure Cosmos DB | Amazon Relational Database Service (RDS) |
|---|---|---|
| Rating | 4.1 / 5 | 4.4 / 5 |
| Reviews | 50 | 240 |
| Starting price | Contact for pricing | Contact for pricing |
| Free trial | Yes | Yes |
| Free version | No | No |
| Best for | Large Enterprises, Small Business, Medium Business | Large Enterprises, Small Business, Medium Business |
| Category | Database as a Service (DBaaS) Provider | Database as a Service (DBaaS) Provider |
| Platforms | Browser Based (Cloud) | Browser Based (Cloud) |
| API | Available | — |
| Support modes | Online | Online |
| Certifications | — | SOC 2, HIPAA, GDPR, ISO 27001 |
| Data residency | — | Global |
Key differences between Azure Cosmos DB and Amazon Relational Database Service (RDS)
- User satisfaction: Amazon Relational Database Service (RDS) scores higher with a 4.4-star average.
- Deployment: Azure Cosmos DB supports Browser Based (Cloud); Amazon Relational Database Service (RDS) supports Browser Based (Cloud).
Azure Cosmos DB vs Amazon Relational Database Service (RDS) — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Database as a Service (DBaaS) Provider tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
Talk to an expert Talk to an expert | Talk to an expert Talk to an expert |
Biggest differences
Start here before you go deeper into features.
Large Enterprises, Small Business, Medium Business
Amazon Relational Database Service (RDS)
Best for scalable, managed cloud databases integrated with AWS services.
- You need a managed database service with automated backups and scaling.
- Your applications require support for multiple database engines in the cloud.
- You want seamless integration within the AWS ecosystem for enterprise workloads.
- You require on-premises or hybrid database deployments outside AWS cloud.
- Your team lacks AWS expertise or needs granular control over infrastructure.
Azure Cosmos DB typically suits Large Enterprises and Small Business. Amazon Relational Database Service (RDS) tends to fit Large Enterprises and Small Business better. The right choice depends on your team size, workflow, and whether a free trial matters.
Description | Introducing Azure Cosmos DB, the ultimate solution for meeting the dynamic needs of your applications. This advanced serverless database is designed to deliver top-tier performance for ... Read More about Azure Cosmos DB | Introducing Amazon Relational Database Service (RDS), a robust software solution that simplifies the management, operation, and scalability of databases in the cloud. Tailored for various ... Read More about Amazon Relational Database Service (RDS) |
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Free Trial Availability |
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User RatingsBased on verified Spotsaas reviews | ||
Best Company Size | — | 51-500 employees500+ employees |
Get pricing help | Get pricing help |
Software Demo
Demo |
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Compare Azure Cosmos DB and Amazon Relational Database Service (RDS) on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Other Details
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | — | ✓ Yes |
|---|---|---|
HIPAA | — | ✓ Yes |
GDPR | — | ✓ Yes |
ISO 27001 | — | ✓ Yes |
Single Sign-On (SSO) | — | ✓ Yes |
Multi-Factor Auth (MFA) | — | ✓ Yes |
Data Encryption | — | ✓ Yes |
Audit Logs | — | ✓ Yes |
Data Residency | — | 🌐 Global |
Azure Cosmos DB User Reviews & Rating Comparison
User Ratings | 4.1 (based on 50 reviews) | 4.4 (based on 240 reviews) |
|---|---|---|
Rating Distribution | ||
List of Customers
Customers |  Mercedes Benz  MARS  Chipotle |  Oracle  Cathay Pacific  Amazon Aurora |
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Media and Screenshots
Videos |  2 Videos |  3 Videos |
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Top Alternatives to Azure Cosmos DB and Amazon Relational Database Service (RDS) in 2026
Alternatives |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Azure Cosmos DB or Amazon Relational Database Service (RDS)?
- Amazon Relational Database Service (RDS) edges out the other on user ratings (4.4 vs 4.1). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Azure Cosmos DB and Amazon Relational Database Service (RDS) offer a free trial?
- Yes, both Azure Cosmos DB and Amazon Relational Database Service (RDS) offer a free trial.
- What is the starting price of Azure Cosmos DB vs Amazon Relational Database Service (RDS)?
- Azure Cosmos DB starts at Contact for pricing. Amazon Relational Database Service (RDS) starts at Contact for pricing.
- What are the top alternatives to Azure Cosmos DB?
- Top alternatives to Azure Cosmos DB include Amazon DocumentDB, Amazon Athena, Xata, Amazon Relational Database Service (RDS), DataStax Astra.
- What are the top alternatives to Amazon Relational Database Service (RDS)?
- Top alternatives to Amazon Relational Database Service (RDS) include Amazon DocumentDB, Amazon Athena, Azure Cosmos DB, Xata, Macrometa.