Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Head-to-head · Databases And Backend

Amazon Aurora vs Azure Cosmos DB for NoSQL

  • Updated Sep 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Amazon Aurora #1 in Databases And Backend 8.6/10 Paid ✓ 0 of 4 features Visit Amazon Aurora
Azure Cosmos DB for NoSQL #13 in Databases And Backend 6.1/10 Free plan · 30-day trial Free plan✓ 0 of 4 features Visit Microsoft

Amazon Aurora leads on 0 checks, Azure Cosmos DB for NoSQL on 1, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAmazon Aurora · 8.6/10
  • Free planonly Azure Cosmos DB for NoSQL

Amazon Aurora scores higher on our rubric for databases and backend: 8.6 against 6.1 out of 10; our editors rank them #1 and #13.

Azure Cosmos DB for NoSQL offers free plan; Amazon Aurora doesn't.

Amazon Aurora is the better fit for teams running managed SQL workloads on AWS. Azure Cosmos DB for NoSQL is the better fit for apps needing globally distributed JSON databases.

  • Amazon Aurora fits best

    Teams running managed SQL workloads on AWS

  • Azure Cosmos DB for NoSQL fits best

    Apps needing globally distributed JSON databases

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Amazon Aurora 8.6/10 Visit ↗ Azure Cosmos DB for NoSQL 6.1/10 Visit ↗
At a glance
Editor score 8.6 6.1
Ranking #1 in Databases And Backend #13 in Databases And Backend
Best for Teams running managed SQL workloads on AWS Apps needing globally distributed JSON databases
Pricing model Paid Free plan + paid
Starting price Not published Not published
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Email, Live chat, Phone, Tickets, Community, Docs · 24/7 Docs
Compliance SOC 2, HIPAA, PCI DSS SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Amazon Aurora 0/4 · Azure Cosmos DB for NoSQL 0/4
Built-in auth Not published Not published
Realtime data sync Not published Not published
Serverless functions Not published Not published
File storage Not published Not published
Specs
Database model Not published Not published
Deployment model Not published Not published
API style Not published Not published
Our review
Pros
  • Choose PostgreSQL-, MySQL-, or DSQL-compatible engines.
  • Multi-AZ storage, replicas, and automatic failover support availability.
  • Provisioned and serverless configurations with cross-region replication.
  • Combines schema-free JSON storage with SQL-like querying and automatic indexing
  • Supports transactions within a logical partition and integrated vector search
  • Offers provisioned, autoscale, and serverless throughput options
Cons
  • Usage-based pricing varies with engine, configuration, Region, and usage.
  • Optional features are billed separately.
  • The free plan is limited to new AWS customers and specified resources.
  • Transactions are scoped to a logical partition
  • The lifetime free tier is limited to one account per Azure subscription
  • Throughput and storage charges vary by region and usage
Our verdict

Amazon Aurora is a managed relational database service for teams running transactional, SaaS, enterprise, or globally distributed workloads. It supports PostgreSQL-, MySQL-, and DSQL-compatible engines, with provisioned and serverless…

Read the review →

Azure Cosmos DB for NoSQL is a fully managed cloud document database for teams building applications around flexible JSON data and global distribution. It pairs schema-free storage with SQL-like querying, automatic indexing, and REST API…

Read the review →
  1. Amazon AuroraDatabases And Backend 8.6Paid
  2. Azure Cosmos DB for NoSQLDatabases And Backend 6.1Free plan · 30-day trial

Strengths and trade-offs

  • Amazon Aurora — where it wins

    • Choose PostgreSQL-, MySQL-, or DSQL-compatible engines.
    • Multi-AZ storage, replicas, and automatic failover support availability.
    • Provisioned and serverless configurations with cross-region replication.

    Where it doesn't

    • Usage-based pricing varies with engine, configuration, Region, and usage.
    • Optional features are billed separately.
    • The free plan is limited to new AWS customers and specified resources.

  • Azure Cosmos DB for NoSQL — where it wins

    • Combines schema-free JSON storage with SQL-like querying and automatic indexing
    • Supports transactions within a logical partition and integrated vector search
    • Offers provisioned, autoscale, and serverless throughput options

    Where it doesn't

    • Transactions are scoped to a logical partition
    • The lifetime free tier is limited to one account per Azure subscription
    • Throughput and storage charges vary by region and usage

More comparisons

All databases and backend comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update