Comparison

Apache Iceberg vs Delta Lake

No clear leader: Delta Lake (64.7) and Apache Iceberg (62.2) are within the 5-point margin; treat as a tie. 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 Iceberg62
Delta Lake65
Score
Vioscale score
Apache Iceberg62 / 100medium · 56%
Delta Lake65 / 100medium · 58%
Pricing
Model
Apache Icebergopen_source
Delta Lakeopen_source
Price level
Apache Icebergfree
Delta Lakefree
Integrations
Count
Apache Iceberg20
Delta Lake29
Reliability
Status page
Apache Iceberg
Delta Lake
Adoption
Dependent repos
Apache Iceberg1
Delta Lake152
Github stars
Apache Iceberg9,176
Delta Lake8,960
Package downloads weekly
Apache Iceberg11,384,061
Delta Lake8,577,014
Activity
Commits last 30d
Apache Iceberg100
Delta Lake100
Release
Cadence days
Apache Iceberg50
Delta Lake50
History
Apache Iceberg20 items
Delta Lake20 items
License
Spdx
Apache IcebergApache-2.0
Delta LakeApache-2.0
Language
Primary
Apache IcebergJava
Delta LakeScala
Market
Availability
Apache Iceberg

Capabilities

Feature-by-feature on the axes that matter for data warehouse software. “-” means undocumented, not absent.

Deployment
Deployment
Apache IcebergEmbedded
Delta LakeSelf-hosted
Architecture
Architecture
Apache Iceberg-
Delta LakeSeparated storage/compute
Compute model
Apache Iceberg-
Delta Lake-
Query
SQL dialect
Apache Iceberg-
Delta Lake-
Federation / lakehouse query-in-place
Apache Iceberg
Delta Lake
Interoperability
Table-format support
Apache IcebergIceberg (Parquet, ORC, Avro, Puffin data files)
Delta LakeDelta, Iceberg, Hudi
Scale
Concurrency scaling
Apache IcebergAutomatic
Delta Lake-
Ingestion
Streaming ingest
Apache Iceberg
Delta Lake
Data model
Semi-structured (JSON/VARIANT)
Apache IcebergFirst-class
Delta Lake-
Analytics
ML / in-DB functions
Apache Iceberg-
Delta Lake-
Sharing
Data sharing / marketplace
Apache Iceberg
Delta Lake
Licensing
Licence class
Apache IcebergPermissive OSS
Delta LakePermissive OSS

What each one is

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

Apache Iceberg

Apache Iceberg is a table format that enables reliable, ACID-compliant SQL operations on big data. It allows multiple query engines—such as Spark, Trino, Flink, Hive, and Impala—to safely read and write the same tables concurrently, bringing traditional database semantics to analytics workloads.

Independently observed

Delta Lake

An open-source storage framework enabling lakehouse architecture with support for multiple compute engines including Spark, Flink, Trino, Snowflake, BigQuery, and others.

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 Iceberg

Open source

Open source, no licensing cost

as of verify ↗

Delta Lake

Open source
as of verify ↗

Platform & deployment

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

Deployment
Cloud / SaaS
Apache Iceberg
Delta Lake
Self-hosted
Apache Iceberg
Delta Lake
On-premise
Apache Iceberg
Delta Lake

Integrations

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

In common (1)
  • Trino

Apache Iceberg

20 total - 19 not shared
  • Spark
  • Presto
  • Flink
  • Hive
  • Impala
  • PyArrow
  • DuckDB
  • Polars
  • Pandas
  • Ray
  • Datafusion
  • BigQuery
  • SQLAlchemy
  • S3
  • GCS
  • Azure Data Lake Storage
  • Hadoop
  • Kerberos
  • Thrift
Independently observed

Delta Lake

29 total - 28 not shared
  • Apache Spark
  • Apache Flink
  • Apache Hive
  • Apache Pulsar
  • Apache Druid
  • ClickHouse
  • PrestoDB
  • StarRocks
  • RisingWave
  • Dagster
  • Hopsworks
  • MLflow
  • Kafka
  • AWS Athena
  • AWS EMR
  • AWS Glue
  • Azure Stream Analytics
  • Google BigQuery
  • Snowflake
  • Databricks
  • AWS Redshift
  • Microsoft Fabric
  • Power BI
  • Starburst
  • +4 more
Independently observed

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