Comparison

Apache Cassandra vs Azure Cosmos DB

No leader: the top candidate Azure Cosmos DB has only 0.31 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Apache Cassandra45
Azure Cosmos DB49
Score
Vioscale score
Apache Cassandra45 / 100low · 40%
Azure Cosmos DB49 / 100low · 31%
Pricing
Free tier
Apache Cassandra
Azure Cosmos DB
Model
Apache Cassandraopen_source
Azure Cosmos DBfreemium
Price level
Apache Cassandrafree
Azure Cosmos DBlow
Integrations
Count
Apache Cassandra19
Azure Cosmos DB
Security
Gdpr
Apache Cassandra
Azure Cosmos DB
Scorecard
Apache Cassandra4.8
Azure Cosmos DB
Reliability
Status page
Apache Cassandra
Azure Cosmos DB
Adoption
Dependent repos
Apache Cassandra0
Azure Cosmos DB
Github stars
Apache Cassandra10,081
Azure Cosmos DB
Activity
Commits last 30d
Apache Cassandra100
Azure Cosmos DB
License
Spdx
Apache CassandraApache-2.0
Azure Cosmos DB
Language
Primary
Apache CassandraJava
Azure Cosmos DB
Market
Availability
Apache Cassandra

Capabilities

Feature-by-feature on the axes that matter for nosql databases. “-” means undocumented, not absent.

Core
Data model
Apache CassandraWide-column
Azure Cosmos DBMulti-model
Query
Query language
Apache CassandraCQL
Azure Cosmos DB-
Consistency
Consistency
Apache CassandraTunable
Azure Cosmos DB-
Transactions
Transactions
Apache CassandraSingle-item
Azure Cosmos DB-
Indexing
Secondary indexes
Apache CassandraYes
Azure Cosmos DB-
Scale
Partitioning / sharding
Apache CassandraAutomatic
Azure Cosmos DB-
Multi-region
Apache Cassandra
Azure Cosmos DB
Replication
Replication topology
Apache CassandraLeaderless
Azure Cosmos DB-
Deployment
Hosting
Apache CassandraCloud + self-hosted
Azure Cosmos DBCloud only
Schema
Schema
Apache CassandraEnforced
Azure Cosmos DBSchemaless
Features
TTL / auto-expiry
Apache Cassandra-
Azure Cosmos DB-
Change streams / CDC
Apache Cassandra-
Azure Cosmos DB-
Vector / search built-in
Apache Cassandra-
Azure Cosmos DB
Licensing
Licence class
Apache CassandraPermissive OSS
Azure Cosmos DBProprietary

What each one is

The product in its own terms, so the numbers below have context.

Apache Cassandra

An open-source, distributed NoSQL database that automatically scales across commodity hardware and cloud infrastructure, providing high availability and fault tolerance with no single points of failure and multi-datacenter replication support.

Independently observed

Azure Cosmos DB

Azure Cosmos DB is a NoSQL database service on Azure that prioritizes minimal latency and the ability to handle massive scale. It includes built-in vector search capabilities for AI-driven applications and is managed fully by Microsoft with no infrastructure to operate.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Apache Cassandra

Open sourceFree tier
as of verify ↗

Azure Cosmos DB

Usage-basedFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Apache Cassandra
Azure Cosmos DB
macOS
Apache Cassandra
Azure Cosmos DB
Windows
Apache Cassandra
Azure Cosmos DB
Linux
Apache Cassandra
Azure Cosmos DB
CLI
Apache Cassandra
Azure Cosmos DB
Deployment
Cloud / SaaS
Apache Cassandra
Azure Cosmos DB
Self-hosted
Apache Cassandra
Azure Cosmos DB
On-premise
Apache Cassandra
Azure Cosmos DB
Hybrid
Apache Cassandra
Azure Cosmos DB

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Apache Cassandra

19 total
  • Amazon Keyspaces
  • Azure Cosmos DB
  • Azure Managed Instance for Apache Cassandra
  • DataStax Astra
  • Elassandra
  • Instaclustr
  • Docker
  • DataStax Studio
  • AxonOps
  • Cassandra Lucene Index
  • Elasticsearch
  • Prometheus
  • DbVisualizer
  • Apache Ignite
  • Ansible
  • Lagom
  • EmoDB
  • FiloDB
  • CQLAI
Independently observed

Azure Cosmos DB

Not documented yet.

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.