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Apache IoTDB vs Datalayers

Apache IoTDB: Apache time-series database for industrial IoT with tree and table models and edge-to-cloud sync. Datalayers: Multi-model database for IoT and observability: time series, full-text, vector and key-value on Parquet.

key differences

  • Licensing: Apache IoTDB is open source (permissive) (Apache License 2.0); Datalayers is proprietary (Commercial (licence key; free trial)).
  • Only Apache IoTDB has triggers, pub/sub.
  • Only Datalayers has secondary indexes, full-text search, vector search.

choose apache-iotdb for

  • +Industrial equipment and PLC data
  • +Power plant and wind turbine monitoring
  • +Edge gateways syncing to a central cluster
  • +Rail and vehicle telemetry

best at · IoT, Time-series, Edge

choose datalayers for

  • +Industrial IoT data platforms
  • +Unified metrics, logs and events storage
  • +Hybrid keyword and vector retrieval for AI apps
  • +Edge-to-cloud telemetry

best at · IoT, Observability, Time-series

Apache IoTDBApache time-series database for industrial IoT with tree and table models and edge-to-cloud sync.
DatalayersMulti-model database for IoT and observability: time series, full-text, vector and key-value on Parquet.
overview
Primary model
Time-Series
Time-Series
Also supports
Relational, Hierarchical
Search Engine, Vector, Key-Value, Columnar / OLAP
Type
Database engine
Database engine
Status
Active
Active
Developer
Apache Software Foundation
Datalayers
First release
2019
2024
Latest version
2.0.11 (Sep 11, 2026)
2.4.9 (Sep 18, 2026)
License
Open source (permissive)Apache License 2.0
ProprietaryCommercial (licence key; free trial)
Free tier
✓
✓
popularity
WhichDB Score
22.8
1.7
Rank
#133
#520
GitHub stars
6.4K
–
Stack Overflow questions
514
–
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Large (≤ 1 PB)
Horizontal scaling
Native
Native
Multi-region
None
None
ACID
None
None
Consistency
Tunable
Eventual
Schema
Flexible
Strict
Architecture
Single node, Distributed, Client server
Single node, Distributed, Shared storage
deployment
Self-hosted
✓
✓
Vendor-managed cloud
—
—
Serverless
—
—
Embedded
—
—
Edge
✓
✓
Clouds
–
–
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
SQL, PromQL
Client languages
Java, Python, C++, Go, C#
–
Best for
IoT, Time-series, Edge, Real-time analytics
IoT, Observability, Time-series, Search
Add more to this comparisonNot sure either fits? Try smart match

Apache IoTDB vs Datalayers: FAQ

What is the difference between Apache IoTDB and Datalayers?

Apache IoTDB: Apache time-series database for industrial IoT with tree and table models and edge-to-cloud sync. Datalayers: Multi-model database for IoT and observability: time series, full-text, vector and key-value on Parquet. Licensing: Apache IoTDB is open source (permissive) (Apache License 2.0); Datalayers is proprietary (Commercial (licence key; free trial)). Only Apache IoTDB has triggers, pub/sub. Only Datalayers has secondary indexes, full-text search, vector search.

When should I choose Apache IoTDB over Datalayers?

Choose Apache IoTDB for industrial equipment and PLC data; power plant and wind turbine monitoring; and edge gateways syncing to a central cluster. Choose Datalayers for industrial IoT data platforms; unified metrics, logs and events storage; and hybrid keyword and vector retrieval for AI apps.

Is Apache IoTDB or Datalayers more popular?

Apache IoTDB ranks #133 on the WhichDB Score (22.8/100) and Datalayers ranks #520 (1.7/100). Popularity is not fit: check the requirements that matter for your project.

Are Apache IoTDB and Datalayers open source?

Yes. Apache IoTDB is open source. License: Apache License 2.0. No. Datalayers is proprietary, closed-source software. License: Commercial (licence key; free trial).