Comparison

GreptimeDB vs QuestDB

No clear leader: GreptimeDB (50.1) and QuestDB (49.9) 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.

GreptimeDB full profile →QuestDB full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

GreptimeDB50

QuestDB50

Attribute comparison across 2 tools
Attribute	GreptimeDB	QuestDB
vioscaleAI score	50 / 100medium · 57%	50 / 100medium · 70%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	freemium
Price levelpricing.price_level	high	low
Starting pricepricing.starting_price	$290	-
Transparentpricing.transparent	✓	✗
Integrations
Countintegrations.count	13	7
Security
Gdprsecurity.gdpr	✓	✓
Hipaasecurity.hipaa	✓	-
Scorecardsecurity.scorecard	-	4.4
Soc2security.soc2	-	✓
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FGreptimeTeam%2Fgreptimedb&per_page=100 · Last 12m: 0	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.questdb%3Aquestdb&per_page=100 · Last 12m: 0
Reliability
Sla pctreliability.sla_pct	-	99.9
Adoption
Dependent reposadoption.dependent_repos	0	106
Github starsadoption.github_stars	6,733	17,444
Activity
Commits last 30dactivity.commits_last_30d	100	38
Release
Cadence daysrelease.cadence_days	4	16
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	Apache-2.0	Apache-2.0
Language
Primarylanguage.primary	Rust	Java
Market
Availabilitymarket.availability	Available worldwide · Popular in US	Available worldwide · Popular in GB, US · HQ GB
Content
Faqcontent.faq	8 items	8 items

Score

vioscaleAI score

GreptimeDB50 / 100medium · 57%

QuestDB50 / 100medium · 70%

Pricing

Free tier

GreptimeDB✓

QuestDB✓

Model

GreptimeDBfreemium

QuestDBfreemium

Price level

GreptimeDBhigh

QuestDBlow

Starting price

GreptimeDB$290

QuestDB–

Transparent

GreptimeDB✓

QuestDB✗

Integrations

Count

GreptimeDB13

QuestDB7

Security

Gdpr

GreptimeDB✓

QuestDB✓

Hipaa

GreptimeDB✓

QuestDB–

Scorecard

GreptimeDB–

QuestDB4.4

Soc2

GreptimeDB–

QuestDB✓

Vulnerabilities

GreptimeDBCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FGreptimeTeam%2Fgreptimedb&per_page=100 · Last 12m: 0

QuestDBCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.questdb%3Aquestdb&per_page=100 · Last 12m: 0

Reliability

Sla pct

GreptimeDB–

QuestDB99.9

Adoption

Dependent repos

GreptimeDB0

QuestDB106

Github stars

GreptimeDB6,733

QuestDB17,444

Activity

Commits last 30d

GreptimeDB100

QuestDB38

Release

Cadence days

GreptimeDB4

QuestDB16

History

GreptimeDB20 items

QuestDB20 items

License

Spdx

GreptimeDBApache-2.0

QuestDBApache-2.0

Language

Primary

GreptimeDBRust

QuestDBJava

Market

Availability

GreptimeDBAvailable worldwide · Popular in US

QuestDBAvailable worldwide · Popular in GB, US · HQ GB

Content

Faq

GreptimeDB8 items

QuestDB8 items

Capabilities

Feature-by-feature on the axes that matter for time-series databases. “-” means undocumented, not absent.

Capability comparison for Time-Series Databases
Capability	GreptimeDB	QuestDB
Query
Query language (SQL / PromQL / InfluxQL-Flux / Graphite)	SQL and PromQL	SQL with time-series extensions (SAMPLE BY, ASOF, HORIZON JOIN, N-dimensional ar
SQL compatibility	Full SQL	Full SQL
Ingest
Ingest model	Both	Push
Model
Data model	Both	Wide events
Lifecycle
Downsampling / rollups	Continuous aggregates	Continuous aggregates
Retention / TTL	Automatic	Automatic
Storage
Compression (columnar / delta / Gorilla)	columnar	columnar with frame compression
Performance
High-cardinality handling	Strong	Strong
Scale
Clustering / horizontal scale	Distributed / sharded	Distributed / sharded
Replication / HA	✓	✓
Deployment
Deployment	Managed	Self-hosted
Interop
Prometheus remote-write compatible	✓	-
Licensing
Licence class	Source-available	Permissive OSS

Query

Query language (SQL / PromQL / InfluxQL-Flux / Graphite)

GreptimeDBSQL and PromQL

QuestDBSQL with time-series extensions (SAMPLE BY, ASOF, HORIZON JOIN, N-dimensional ar

SQL compatibility

GreptimeDBFull SQL

QuestDBFull SQL

Ingest

Ingest model

GreptimeDBBoth

QuestDBPush

Model

Data model

GreptimeDBBoth

QuestDBWide events

Lifecycle

Downsampling / rollups

GreptimeDBContinuous aggregates

QuestDBContinuous aggregates

Retention / TTL

GreptimeDBAutomatic

QuestDBAutomatic

Storage

Compression (columnar / delta / Gorilla)

GreptimeDBcolumnar

QuestDBcolumnar with frame compression

Performance

High-cardinality handling

GreptimeDBStrong

QuestDBStrong

Scale

Clustering / horizontal scale

GreptimeDBDistributed / sharded

QuestDBDistributed / sharded

Replication / HA

GreptimeDB✓

QuestDB✓

Deployment

GreptimeDBManaged

QuestDBSelf-hosted

Interop

Prometheus remote-write compatible

GreptimeDB✓

QuestDB-

Licensing

Licence class

GreptimeDBSource-available

QuestDBPermissive OSS

What each one is

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

GreptimeDB

A columnar database designed for observability workloads that accepts metrics, logs, and traces via standard protocols like OpenTelemetry and Prometheus Remote Write. It supports SQL queries for all data types and PromQL for metrics, using object storage for cost-effective long-term retention while keeping recent data in fast local caches.

Independently observed

QuestDB

A specialized database engineered to ingest high-volume time-series data at speed, execute queries with minimal latency, and maintain queryable history across tiered storage layers—combining standard SQL with open file formats for portability.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

GreptimeDB

from $290/moHybridFree tier

Free open-source core; Enterprise managed service from $290/month, custom pricing for self-hosted

Open Source (Apache 2.0)Free
- Core columnar database engine
- SQL and PromQL query support
- OpenTelemetry and Prometheus Remote Write ingestion
- Object storage integration
GreptimeDB Enterprise - Fully-ManagedFrom $290/month
- Guaranteed resources and performance
- Unlimited data storage and retention
- Completely isolated resources and network
- Fully-managed deployment topology
- SQL, PromQL, OpenTelemetry support
- +20 more
GreptimeDB Enterprise - Bring Your Own CloudContact sales
- Deploy in your own cloud infrastructure
- Full data sovereignty
- Installation service
- Advanced technical support
- Custom SLA
- +3 more

as of 2026-10-13verify ↗

QuestDB

HybridFree tier

Open-source Apache 2.0 free tier; QuestDB Cloud and Enterprise plans available via contact/quote

as of 2026-08-14verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	GreptimeDB	QuestDB
WebPlatforms	✗	✓
macOSPlatforms	✓	✓
WindowsPlatforms	✓	✓
LinuxPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
HybridDeployment	✓	✓

Platforms

Web

GreptimeDB✗

QuestDB✓

macOS

GreptimeDB✓

QuestDB✓

Windows

GreptimeDB✓

QuestDB✓

Linux

GreptimeDB✓

QuestDB✓

CLI

GreptimeDB✓

QuestDB✓

Deployment

Cloud / SaaS

GreptimeDB✓

QuestDB✓

Self-hosted

GreptimeDB✓

QuestDB✓

Hybrid

GreptimeDB✓

QuestDB✓

Integrations

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

In common (2)

MySQL
PostgreSQL

GreptimeDB

19 total - 17 not shared

OpenTelemetry
Prometheus
InfluxDB
Loki
Elasticsearch
VictoriaLogs
Jaeger
Prometheus Remote Write
JDBC
Grafana
Perses
Prometheus Alertmanager
Metabase
Spark
Trino
DuckDB
Kubernetes

Independently observed

QuestDB

19 total - 17 not shared

Parquet
Arrow
Polars
Pandas
Debezium
Iceberg
MongoDB
Cassandra
Kafka
Apache Parquet
Apache Arrow
Claude Code
REST API
Apache Iceberg
Databricks
AWS
Azure

Independently observed

Still deciding?

GreptimeDB or QuestDB: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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