Comparison

GreptimeDB vs M3DB

On the evidence we track, GreptimeDB leads this comparison with a composite score of 50/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

GreptimeDB full profile →M3DB full profile →

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★GreptimeDB50

M3DB36

Attribute comparison across 2 tools
Attribute	GreptimeDBLeader	M3DB
Vioscale score	50 / 100medium · 62%	36 / 100medium · 51%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	open_source
Price levelpricing.price_level	high	free
Transparentpricing.transparent	✓	-
Integrations
Countintegrations.count	8	4
Security
Gdprsecurity.gdpr	✓	-
Hipaasecurity.hipaa	✓	-
Scorecardsecurity.scorecard	-	3.3
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=go&package_name=github.com%2Fm3db%2Fm3&per_page=100 · Last 12m: 0
Adoption
Dependent reposadoption.dependent_repos	0	10
Github starsadoption.github_stars	6,573	4,895
Activity
Commits last 30dactivity.commits_last_30d	100	0
Release
Cadence daysrelease.cadence_days	3	11
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	Apache-2.0	Apache-2.0
Language
Primarylanguage.primary	Rust	Go
Market
Availabilitymarket.availability	Available worldwide · Popular in US · HQ US	Available worldwide

Score

Vioscale score

GreptimeDB50 / 100medium · 62%

M3DB36 / 100medium · 51%

Pricing

Free tier

GreptimeDB✓

M3DB✓

Model

GreptimeDBcommercial

M3DBopen_source

Price level

GreptimeDBhigh

M3DBfree

Transparent

GreptimeDB✓

M3DB–

Integrations

Count

GreptimeDB8

M3DB4

Security

Gdpr

GreptimeDB✓

M3DB–

Hipaa

GreptimeDB✓

M3DB–

Scorecard

GreptimeDB–

M3DB3.3

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

M3DBCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fm3db%2Fm3&per_page=100 · Last 12m: 0

Adoption

Dependent repos

GreptimeDB0

M3DB10

Github stars

GreptimeDB6,573

M3DB4,895

Activity

Commits last 30d

GreptimeDB100

M3DB0

Release

Cadence days

GreptimeDB3

M3DB11

History

GreptimeDB20 items

M3DB20 items

License

Spdx

GreptimeDBApache-2.0

M3DBApache-2.0

Language

Primary

GreptimeDBRust

M3DBGo

Market

Availability

GreptimeDBAvailable worldwide · Popular in US · HQ US

M3DBAvailable worldwide

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	M3DB
Query
Query language (SQL / PromQL / InfluxQL-Flux / Graphite)	SQL and PromQL	PromQL, Graphite
SQL compatibility	Full SQL	Non-SQL
Ingest
Ingest model	Both	Push
Model
Data model	Both	Metrics (labels/tags)
Lifecycle
Downsampling / rollups	Continuous aggregates	Retention policies
Retention / TTL	Automatic	Automatic
Storage
Compression (columnar / delta / Gorilla)	columnar	columnar
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

M3DBPromQL, Graphite

SQL compatibility

GreptimeDBFull SQL

M3DBNon-SQL

Ingest

Ingest model

GreptimeDBBoth

M3DBPush

Model

Data model

GreptimeDBBoth

M3DBMetrics (labels/tags)

Lifecycle

Downsampling / rollups

GreptimeDBContinuous aggregates

M3DBRetention policies

Retention / TTL

GreptimeDBAutomatic

M3DBAutomatic

Storage

Compression (columnar / delta / Gorilla)

GreptimeDBcolumnar

M3DBcolumnar

Performance

High-cardinality handling

GreptimeDBStrong

M3DBStrong

Scale

Clustering / horizontal scale

GreptimeDBDistributed / sharded

M3DBDistributed / sharded

Replication / HA

GreptimeDB✓

M3DB✓

Deployment

GreptimeDBManaged

M3DBSelf-hosted

Interop

Prometheus remote-write compatible

GreptimeDB✓

M3DB✓

Licensing

Licence class

GreptimeDBSource-available

M3DBPermissive OSS

What each one is

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

GreptimeDB

Leader

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

M3DB

M3 is a metrics platform consisting of a distributed time-series database, query engine, and ingestion system designed to handle massive metric volumes efficiently. It provides Prometheus and Graphite compatibility while optimizing for performance and cost efficiency through purpose-built storage and querying components.

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

Leader

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 ↗

M3DB

Open sourceFree tier

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	M3DB
WebPlatforms	✓	✗
AndroidPlatforms	✓	✗
macOSPlatforms	✓	✗
WindowsPlatforms	✓	✗
LinuxPlatforms	✓	✗
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗
HybridDeployment	✓	✗

Platforms

Web

GreptimeDB✓

M3DB✗

Android

GreptimeDB✓

M3DB✗

macOS

GreptimeDB✓

M3DB✗

Windows

GreptimeDB✓

M3DB✗

Linux

GreptimeDB✓

M3DB✗

CLI

GreptimeDB✓

M3DB✓

Deployment

Cloud / SaaS

GreptimeDB✓

M3DB✗

Self-hosted

GreptimeDB✓

M3DB✓

On-premise

GreptimeDB✓

M3DB✗

Hybrid

GreptimeDB✓

M3DB✗

Integrations

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

In common (1)

Prometheus

GreptimeDB

Leader

8 total - 7 not shared

OpenTelemetry
InfluxDB
Loki
Elasticsearch
VictoriaLogs
Jaeger
MySQL

Independently observed

M3DB

4 total - 3 not shared

Graphite
Kubernetes
Docker

Independently observed

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