Comparison

GreptimeDB vs KairosDB

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 →KairosDB full profile →

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★GreptimeDB50

KairosDB25

Attribute comparison across 2 tools
Attribute	GreptimeDBLeader	KairosDB
Vioscale score	50 / 100medium · 62%	25 / 100medium · 56%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	commercial	open_source
Price levelpricing.price_level	high	free
Transparentpricing.transparent	✓	-
Integrations
Countintegrations.count	8	3
Security
Gdprsecurity.gdpr	✓	-
Hipaasecurity.hipaa	✓	-
Scorecardsecurity.scorecard	-	3.4
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: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.kairosdb%3Akairosdb&per_page=100 · Last 12m: 0 · Max severity: MODERATE
Reliability
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	0	32
Github starsadoption.github_stars	6,573	1,762
Package downloads weeklyadoption.package_downloads_weekly	-	9
Activity
Commits last 30dactivity.commits_last_30d	100	0
Release
Cadence daysrelease.cadence_days	3	92
Historyrelease.history	20 items	15 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	-

Score

Vioscale score

GreptimeDB50 / 100medium · 62%

KairosDB25 / 100medium · 56%

Pricing

Free tier

GreptimeDB✓

KairosDB–

Model

GreptimeDBcommercial

KairosDBopen_source

Price level

GreptimeDBhigh

KairosDBfree

Transparent

GreptimeDB✓

KairosDB–

Integrations

Count

GreptimeDB8

KairosDB3

Security

Gdpr

GreptimeDB✓

KairosDB–

Hipaa

GreptimeDB✓

KairosDB–

Scorecard

GreptimeDB–

KairosDB3.4

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

KairosDBCount: 1 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.kairosdb%3Akairosdb&per_page=100 · Last 12m: 0 · Max severity: MODERATE

Reliability

Status page

GreptimeDB–

KairosDB✓

Adoption

Dependent repos

GreptimeDB0

KairosDB32

Github stars

GreptimeDB6,573

KairosDB1,762

Package downloads weekly

GreptimeDB–

KairosDB9

Activity

Commits last 30d

GreptimeDB100

KairosDB0

Release

Cadence days

GreptimeDB3

KairosDB92

History

GreptimeDB20 items

KairosDB15 items

License

Spdx

GreptimeDBApache-2.0

KairosDBApache-2.0

Language

Primary

GreptimeDBRust

KairosDBJava

Market

Availability

GreptimeDBAvailable worldwide · Popular in US · HQ US

KairosDB–

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

Query

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

GreptimeDBSQL and PromQL

KairosDBREST API, Graphite protocol

SQL compatibility

GreptimeDBFull SQL

KairosDBNon-SQL

Ingest

Ingest model

GreptimeDBBoth

KairosDBPush

Model

Data model

GreptimeDBBoth

KairosDBMetrics (labels/tags)

Lifecycle

Downsampling / rollups

GreptimeDBContinuous aggregates

KairosDBContinuous aggregates

Retention / TTL

GreptimeDBAutomatic

KairosDBManual

Storage

Compression (columnar / delta / Gorilla)

GreptimeDBcolumnar

KairosDB-

Performance

High-cardinality handling

GreptimeDBStrong

KairosDBStrong

Scale

Clustering / horizontal scale

GreptimeDBDistributed / sharded

KairosDBDistributed / sharded

Replication / HA

GreptimeDB✓

KairosDB✓

Deployment

GreptimeDBManaged

KairosDBSelf-hosted

Interop

Prometheus remote-write compatible

GreptimeDB✓

KairosDB-

Licensing

Licence class

GreptimeDBSource-available

KairosDBSource-available

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

KairosDB

Open-source time series database that leverages Cassandra for storage, providing REST and Graphite protocol support for data ingestion and retrieval, with built-in aggregation functions and extensible architecture via plugins.

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 ↗

KairosDB

Open source

as of 2026-08-13verify ↗

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

Platforms

Web

GreptimeDB✓

KairosDB✓

Android

GreptimeDB✓

KairosDB✗

macOS

GreptimeDB✓

KairosDB✗

Windows

GreptimeDB✓

KairosDB✗

Linux

GreptimeDB✓

KairosDB✗

CLI

GreptimeDB✓

KairosDB✓

Deployment

Cloud / SaaS

GreptimeDB✓

KairosDB✗

Self-hosted

GreptimeDB✓

KairosDB✓

On-premise

GreptimeDB✓

KairosDB✗

Hybrid

GreptimeDB✓

KairosDB✗

Integrations

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

GreptimeDB

Leader

8 total

OpenTelemetry
Prometheus
InfluxDB
Loki
Elasticsearch
VictoriaLogs
Jaeger
MySQL

Independently observed

KairosDB

3 total

Cassandra
Graphite
Telnet

Independently observed

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