vs

CortexDB vs MongoDB

CortexDB: Schema-less multi-model engine from Germany's Cortex AG, now sold as CortexEngine within Cortex-IP. MongoDB: The default document database: flexible BSON documents, rich queries and built-in sharding.

key differences

  • CortexDB is primarily a multivalue (Pick) database; MongoDB is document.
  • Licensing: CortexDB is proprietary (Commercial license); MongoDB is source-available (Server Side Public License v1 (Community); commercial (Enterprise)).
  • MongoDB is built for larger datasets (≤ 1 PB) than CortexDB (≤ 10 TB).
  • Horizontal scaling is none in CortexDB and native in MongoDB.
  • Transactions: CortexDB offers limited ACID; MongoDB offers full.
  • Only CortexDB has time travel, streaming ingest.
  • Only MongoDB has transactions, joins, vector search, geospatial, change data capture.

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 mongodb for

  • +Product catalogs with highly variable attributes
  • +Content management and user-generated content
  • +Mobile and web backends that evolve their schema weekly
  • +IoT and event data with time-series collections

best at · OLTP, Content, Metadata

overview
Primary model
Multivalue (Pick)
Document
Also supports
Document, Key-Value
Search Engine, Vector, Time-Series, Spatial
Type
Database engine
Database engine
Status
Active
Active
Developer
Cortex AG
MongoDB, Inc.
First release
2014
2009
Latest version
–
9.0.4 (Oct 14, 2026)
License
ProprietaryCommercial license
Source-availableServer Side Public License v1 (Community); commercial (Enterprise)
Free tier
✓
✓
popularity
WhichDB Score
1.5
80.5
Rank
#535
#4
GitHub stars
–
28.7K
Stack Overflow questions
–
175.2K
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
Tunable, Causal
Schema
Schemaless
Flexible
Architecture
Client server
Primary replica, Distributed, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
–
AWS, Google Cloud, Azure
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
MongoDB Query API (MQL), Aggregation pipeline
Client languages
JavaScript, Java
C, C++, C#, Go, Java, Kotlin, JavaScript, PHP
Best for
OLTP, OLAP, Metadata
OLTP, Content, Metadata, IoT

CortexDB vs MongoDB: FAQ

What is the difference between CortexDB and MongoDB?

CortexDB: Schema-less multi-model engine from Germany's Cortex AG, now sold as CortexEngine within Cortex-IP. MongoDB: The default document database: flexible BSON documents, rich queries and built-in sharding. CortexDB is primarily a multivalue (Pick) database; MongoDB is document. Licensing: CortexDB is proprietary (Commercial license); MongoDB is source-available (Server Side Public License v1 (Community); commercial (Enterprise)). MongoDB is built for larger datasets (≤ 1 PB) than CortexDB (≤ 10 TB).

When should I choose CortexDB over MongoDB?

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 MongoDB for product catalogs with highly variable attributes; content management and user-generated content; and mobile and web backends that evolve their schema weekly.

Is CortexDB or MongoDB more popular?

MongoDB ranks #4 on the WhichDB Score (80.5/100) and CortexDB ranks #535 (1.5/100). Popularity is not fit: check the requirements that matter for your project.

Are CortexDB and MongoDB open source?

No. CortexDB is proprietary, closed-source software. License: Commercial license. Not in the OSI sense. MongoDB is source-available: you can read the code, but the license restricts some uses, typically offering it as a competing managed service. License: Server Side Public License v1 (Community); commercial (Enterprise).