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Head-to-head · Time-Series Databases

GreptimeDB vs DolphinDB

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score GreptimeDB #13 in Time-Series Databases 7.7/10 Free plan Free plan✓ 3 of 3 features Visit GreptimeDB
DolphinDB #14 in Time-Series Databases 7.6/10 Free plan Free plan✓ 3 of 3 features Visit DolphinDB

GreptimeDB leads on 0 checks, DolphinDB on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGreptimeDB · 7.7/10
  • Free planboth

GreptimeDB scores higher on our rubric for time-series databases: 7.7 against 7.6 out of 10; our editors rank them #13 and #14.

GreptimeDB is the better fit for observability data across metrics, logs, and traces. DolphinDB is the better fit for complex streaming and time-series analytics.

  • GreptimeDB fits best

    Observability data across metrics, logs, and traces

  • DolphinDB fits best

    Complex streaming and time-series analytics

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Side by side

Feature GreptimeDB 7.7/10 Visit ↗ DolphinDB 7.6/10 Visit ↗
At a glance
Editor score 7.7 7.6
Ranking #13 in Time-Series Databases #14 in Time-Series Databases
Best for Observability data across metrics, logs, and traces Complex streaming and time-series analytics
Pricing model Free plan + paid Free
Starting price $290/mo Free
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web, Linux Web, Windows, Linux
Support Community, Docs · 24/7 Community, Docs
Integrations 20 integrations 20 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features GreptimeDB 3/3 · DolphinDB 3/3
SQL support ✓ ✓
Retention policies ✓ ✓
Horizontal scaling ✓ ✓
Specs
Deployment Both Both
Query languages SQL, PromQL, Log Query DolphinDB SQL; ANSI SQL/SQL-92; DolphinDB scripting language
Ingestion methods Prometheus Remote Write, OpenTelemetry OTLP/HTTP, Loki Push API, Elasticsearch Bulk API, InfluxDB Line Protocol, MySQL, PostgreSQL, gRPC, HTTP Text, binary, JSON, HDF5, Parquet, Arrow, ODBC, APIs, Kafka, MQTT, ZeroMQ, MySQL, MongoDB, HBase, kdb+
Our review
Pros
  • SQL and PromQL querying across observability data
  • Ingests OpenTelemetry, Prometheus, Loki, Elasticsearch, and InfluxDB
  • Supports retention, continuous aggregation, and distributed deployment
  • Distributed storage with horizontal scaling and data rebalancing
  • Streaming engines, retention policies, and tiered storage
  • Broad APIs, languages, and messaging integrations
Cons
  • Log Query is listed as experimental
  • Self-managed deployment requires infrastructure ownership
  • Bring Your Own Cloud pricing is custom
  • Community Edition is limited to 2 nodes
  • Each Community Edition node allows up to 2 CPU cores and 8 GB RAM
  • Paid pricing requires contacting sales
Our verdict

GreptimeDB is an open-source, columnar database for storing and querying metrics, logs, traces, and other time-indexed data. It is aimed at teams that want one observability data layer with SQL for cross-signal analysis and PromQL for…

Read the review →

DolphinDB is a distributed time-series database and real-time analytics platform for organizations handling large volumes of structured or streaming data. Its feature set is aimed at financial institutions and operational teams in energy,…

Read the review →
  1. GreptimeDBTime-Series Databases 7.7Free plan
  2. DolphinDBTime-Series Databases 7.6Free plan

Strengths and trade-offs

  • GreptimeDB — where it wins

    • SQL and PromQL querying across observability data
    • Ingests OpenTelemetry, Prometheus, Loki, Elasticsearch, and InfluxDB
    • Supports retention, continuous aggregation, and distributed deployment

    Where it doesn't

    • Log Query is listed as experimental
    • Self-managed deployment requires infrastructure ownership
    • Bring Your Own Cloud pricing is custom

  • DolphinDB — where it wins

    • Distributed storage with horizontal scaling and data rebalancing
    • Streaming engines, retention policies, and tiered storage
    • Broad APIs, languages, and messaging integrations

    Where it doesn't

    • Community Edition is limited to 2 nodes
    • Each Community Edition node allows up to 2 CPU cores and 8 GB RAM
    • Paid pricing requires contacting sales

All Time-Series databases comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update