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InterSystems IRIS vs Rocket UniData / UniVerse

InterSystems IRIS: Multi-model data platform (SQL, objects, globals, vectors) with built-in interoperability, big in healthcare. Rocket UniData / UniVerse: Rocket's Pick-style MultiValue databases, powering thousands of vertical business applications.

key differences

  • InterSystems IRIS is primarily a relational database; Rocket UniData / UniVerse is multivalue (Pick).
  • InterSystems IRIS is built for larger datasets (≤ 1 PB) than Rocket UniData / UniVerse (≤ 10 TB).
  • Horizontal scaling is native in InterSystems IRIS and none in Rocket UniData / UniVerse.
  • Transactions: InterSystems IRIS offers full ACID; Rocket UniData / UniVerse offers limited.
  • Only InterSystems IRIS has full-text search, vector search, json, stored procedures, columnar storage.

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

choose rocket-unidata-universe for

  • +Running vertical ERP, distribution and healthcare packages built on U2
  • +Higher-education student information systems
  • +Modernising Pick applications behind REST and .NET

best at · OLTP

InterSystems IRISMulti-model data platform (SQL, objects, globals, vectors) with built-in interoperability, big in healthcare.
Rocket UniData / UniVerseRocket's Pick-style MultiValue databases, powering thousands of vertical business applications.
overview
Primary model
Relational
Multivalue (Pick)
Also supports
Object, Document, Key-Value, Multivalue (Pick), Vector
–
Type
Database engine
Database engine
Status
Active
Active
Developer
InterSystems Corporation
Rocket Software
First release
2018
1985
Latest version
2026.2 (CD) (Jul 22, 2026)
UniVerse 14.2.1 (Nov 5, 2025)
License
ProprietaryProprietary commercial license
ProprietaryProprietary commercial license
Free tier
✓
✓
popularity
WhichDB Score
13.3
11.0
Rank
#253
#289
GitHub stars
–
–
Stack Overflow questions
42
121
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Medium (≤ 10 TB)
Horizontal scaling
Native
None
Multi-region
Read replicas
Read replicas
ACID
Full
Limited
Consistency
Strong
Strong
Schema
Flexible
Flexible
Architecture
Client server, Primary replica, Distributed
Client server, Primary replica
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
SQL, ObjectScript, Python (Embedded)
UniVerse BASIC / UniBasic, RetrieVe / UniQuery, SQL
Client languages
Java, C#, Python, JavaScript, C++
C#, Java, Python, C
Best for
OLTP, HTAP, Real-time analytics, Vector search
OLTP
Add more to this comparisonNot sure either fits? Try smart match

InterSystems IRIS vs Rocket UniData / UniVerse: FAQ

What is the difference between InterSystems IRIS and Rocket UniData / UniVerse?

InterSystems IRIS: Multi-model data platform (SQL, objects, globals, vectors) with built-in interoperability, big in healthcare. Rocket UniData / UniVerse: Rocket's Pick-style MultiValue databases, powering thousands of vertical business applications. InterSystems IRIS is primarily a relational database; Rocket UniData / UniVerse is multivalue (Pick). InterSystems IRIS is built for larger datasets (≤ 1 PB) than Rocket UniData / UniVerse (≤ 10 TB). Horizontal scaling is native in InterSystems IRIS and none in Rocket UniData / UniVerse.

When should I choose InterSystems IRIS over Rocket UniData / UniVerse?

Choose InterSystems IRIS for electronic health records and hospital information systems; health information exchanges and FHIR servers; and high-throughput financial transaction processing. Choose Rocket UniData / UniVerse for running vertical ERP, distribution and healthcare packages built on U2; higher-education student information systems; and modernising Pick applications behind REST and .NET.

Is InterSystems IRIS or Rocket UniData / UniVerse more popular?

InterSystems IRIS ranks #253 on the WhichDB Score (13.3/100) and Rocket UniData / UniVerse ranks #289 (11.0/100). Popularity is not fit: check the requirements that matter for your project.

Are InterSystems IRIS and Rocket UniData / UniVerse open source?

No. InterSystems IRIS is proprietary, closed-source software. No. Rocket UniData / UniVerse is proprietary, closed-source software.