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CortexDB vs InterSystems IRIS

CortexDB: Schema-less multi-model engine from Germany's Cortex AG, now sold as CortexEngine within Cortex-IP. InterSystems IRIS: Multi-model data platform (SQL, objects, globals, vectors) with built-in interoperability, big in healthcare.

key differences

  • CortexDB is primarily a multivalue (Pick) database; InterSystems IRIS is relational.
  • InterSystems IRIS is built for larger datasets (≤ 1 PB) than CortexDB (≤ 10 TB).
  • Horizontal scaling is none in CortexDB and native in InterSystems IRIS.
  • Transactions: CortexDB offers limited ACID; InterSystems IRIS offers full.
  • Only CortexDB has time travel, streaming ingest.
  • Only InterSystems IRIS has transactions, joins, vector search, triggers, stored procedures.

choose cortexdb for

  • +Integrating heterogeneous enterprise data without upfront schema design
  • +Master-data and process-dependency analysis
  • +Low-code business applications on top of the Uniplex layer

best at · OLTP, OLAP, Metadata

choose intersystems-iris for

  • +Electronic health records and hospital information systems
  • +Health information exchanges and FHIR servers
  • +High-throughput financial transaction processing
  • +Supply-chain and logistics platforms needing integration plus analytics

best at · OLTP, HTAP, Real-time analytics

CortexDBSchema-less multi-model engine from Germany's Cortex AG, now sold as CortexEngine within Cortex-IP.
InterSystems IRISMulti-model data platform (SQL, objects, globals, vectors) with built-in interoperability, big in healthcare.
overview
Primary model
Multivalue (Pick)
Relational
Also supports
Document, Key-Value
Object, Document, Key-Value, Multivalue (Pick), Vector
Type
Database engine
Database engine
Status
Active
Active
Developer
Cortex AG
InterSystems Corporation
First release
2014
2018
Latest version
–
2026.2 (CD) (Jul 22, 2026)
License
ProprietaryCommercial license
ProprietaryProprietary commercial license
Free tier
✓
✓
popularity
WhichDB Score
1.5
13.3
Rank
#535
#253
GitHub stars
–
–
Stack Overflow questions
–
42
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Large (≤ 1 PB)
Horizontal scaling
None
Native
Multi-region
Read replicas
Read replicas
ACID
Limited
Full
Consistency
Strong
Strong
Schema
Schemaless
Flexible
Architecture
Client server
Client server, Primary replica, Distributed
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
AWS, Azure, Google Cloud
capabilities
Transactions
—
✓
Joins
—
✓
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
—
✓
Geospatial
—
—
JSON
✓
✓
Change data capture
—
—
Triggers
—
✓
Stored procedures
—
✓
Materialized views
—
—
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
—
✓
In-memory
—
—
Durable persistence
✓
✓
Compression
—
—
Encryption at rest
—
✓
Role-based access
✓
✓
Time travel
✓
—
Branching
—
—
Online schema changes
—
—
Streaming ingest
✓
—
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
Cortex API, JavaScript
SQL, ObjectScript, Python (Embedded)
Client languages
JavaScript, Java
Java, C#, Python, JavaScript, C++
Best for
OLTP, OLAP, Metadata
OLTP, HTAP, Real-time analytics, Vector search
Add more to this comparisonNot sure either fits? Try smart match

CortexDB vs InterSystems IRIS: FAQ

What is the difference between CortexDB and InterSystems IRIS?

CortexDB: Schema-less multi-model engine from Germany's Cortex AG, now sold as CortexEngine within Cortex-IP. InterSystems IRIS: Multi-model data platform (SQL, objects, globals, vectors) with built-in interoperability, big in healthcare. CortexDB is primarily a multivalue (Pick) database; InterSystems IRIS is relational. InterSystems IRIS is built for larger datasets (≤ 1 PB) than CortexDB (≤ 10 TB). Horizontal scaling is none in CortexDB and native in InterSystems IRIS.

When should I choose CortexDB over InterSystems IRIS?

Choose CortexDB for integrating heterogeneous enterprise data without upfront schema design; master-data and process-dependency analysis; and low-code business applications on top of the Uniplex layer. Choose InterSystems IRIS for electronic health records and hospital information systems; health information exchanges and FHIR servers; and high-throughput financial transaction processing.

Is CortexDB or InterSystems IRIS more popular?

InterSystems IRIS ranks #253 on the WhichDB Score (13.3/100) and CortexDB ranks #535 (1.5/100). Popularity is not fit: check the requirements that matter for your project.

Are CortexDB and InterSystems IRIS open source?

No. CortexDB is proprietary, closed-source software. License: Commercial license. No. InterSystems IRIS is proprietary, closed-source software.