Comparison

GreptimeDB vs QuestDB

No clear leader: QuestDB (50.3) and GreptimeDB (49.7) 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 formatsJSON Markdown GraphQLor send Accept: application/json

GreptimeDB50

QuestDB50

Attribute comparison across 2 tools
Attribute	GreptimeDB	QuestDB
Vioscale score	50 / 100medium · 62%	50 / 100medium · 65%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	high	low
Transparentpricing.transparent	✓	✗
Integrations
Countintegrations.count	8	10
Security
Gdprsecurity.gdpr	✓	✓
Hipaasecurity.hipaa	✓	-
Scorecardsecurity.scorecard	-	4.3
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	6,573	17,279
Activity
Commits last 30dactivity.commits_last_30d	100	64
Release
Cadence daysrelease.cadence_days	3	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 · HQ US	Available worldwide · Popular in GB, US · HQ GB

Score

Vioscale score

GreptimeDB50 / 100medium · 62%

QuestDB50 / 100medium · 65%

Pricing

Free tier

GreptimeDB✓

QuestDB✓

Model

GreptimeDBcommercial

QuestDBcommercial

Price level

GreptimeDBhigh

QuestDBlow

Transparent

GreptimeDB✓

QuestDB✗

Integrations

Count

GreptimeDB8

QuestDB10

Security

Gdpr

GreptimeDB✓

QuestDB✓

Hipaa

GreptimeDB✓

QuestDB–

Scorecard

GreptimeDB–

QuestDB4.3

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

GreptimeDB6,573

QuestDB17,279

Activity

Commits last 30d

GreptimeDB100

QuestDB64

Release

Cadence days

GreptimeDB3

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 · HQ US

QuestDBAvailable worldwide · Popular in GB, US · HQ GB

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	-
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

QuestDB-

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 time-series and observability database that consolidates multiple signal types—metrics, logs, traces, and events—into a single queryable system using standard protocols like OpenTelemetry and Prometheus. It uses columnar storage on object storage for cost-effective scalability and provides both open-source and fully-managed cloud deployment options.

Independently observed

QuestDB

QuestDB is an open-source time-series database engineered for low latency, delivering ultra-low latency ingestion, high throughput, and multi-tier storage for demanding time-series workloads.

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

From $290/month (fully-managed). Free open-source tier. Custom enterprise pricing for self-hosted deployments.

Open SourceFree
- High-performance ingestion
- High-performance query
- Multi-protocol support (OTLP, Prometheus, InfluxDB)
- Log query endpoints
- Cluster deployment
- +3 more
GreptimeDB Enterprise Fully-ManagedFrom $290/month, fully-managed
- Unlimited data storage and retention
- Completely isolated resource control and network
- Fully-managed and customizable deployment topology
- SQL, PromQL, OpenTelemetry support
- Automatic scaling and optimization
- +7 more
GreptimeDB Enterprise Bring Your Own CloudContact sales
- Installation service for your infrastructure or AWS account
- Full data sovereignty and control
- Advanced technical support
- Custom SLA and dedicated account management
- Operational tools and UI
- +3 more

as of 2026-08-13verify ↗

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	✓	✓
AndroidPlatforms	✓	✗
macOSPlatforms	✓	✗
WindowsPlatforms	✓	✗
LinuxPlatforms	✓	✗
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗
HybridDeployment	✓	✗

Platforms

Web

GreptimeDB✓

QuestDB✓

Android

GreptimeDB✓

QuestDB✗

macOS

GreptimeDB✓

QuestDB✗

Windows

GreptimeDB✓

QuestDB✗

Linux

GreptimeDB✓

QuestDB✗

CLI

GreptimeDB✓

QuestDB✓

Deployment

Cloud / SaaS

GreptimeDB✓

QuestDB✓

Self-hosted

GreptimeDB✓

QuestDB✓

On-premise

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 (1)

MySQL

GreptimeDB

8 total - 7 not shared

OpenTelemetry
Prometheus
InfluxDB
Loki
Elasticsearch
VictoriaLogs
Jaeger

Independently observed

QuestDB

10 total - 9 not shared

PostgreSQL
Parquet
Arrow
Polars
Pandas
Debezium
Iceberg
MongoDB
Cassandra

Independently observed

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