vioscaleAI
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 →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★GreptimeDB50
KairosDB30
Score
vioscaleAI score
GreptimeDB50 / 100medium · 57%
KairosDB30 / 100medium · 55%
Pricing
Free tier
GreptimeDB✓
KairosDB–
Model
GreptimeDBfreemium
KairosDBopen_source
Price level
GreptimeDBhigh
KairosDBfree
Starting price
GreptimeDB$290
KairosDB–
Transparent
GreptimeDB✓
KairosDB–
Integrations
Count
GreptimeDB13
KairosDB3
Security
Gdpr
GreptimeDB✓
KairosDB–
Hipaa
GreptimeDB✓
KairosDB–
Scorecard
GreptimeDB–
KairosDB3.4
Vulnerabilities
Reliability
Status page
GreptimeDB–
KairosDB✓
Adoption
Dependent repos
GreptimeDB0
KairosDB32
Github stars
GreptimeDB6,733
KairosDB1,761
Package downloads weekly
GreptimeDB–
KairosDB3
Activity
Commits last 30d
GreptimeDB100
KairosDB0
Release
Cadence days
GreptimeDB4
KairosDB92
History
GreptimeDB20 items
KairosDB15 items
License
Spdx
GreptimeDBApache-2.0
KairosDBApache-2.0
Language
Primary
GreptimeDBRust
KairosDBJava
Market
Availability
Content
Faq
GreptimeDB8 items
KairosDB6 items

Capabilities

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

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
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 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

KairosDB

KairosDB is a time series database built on Cassandra that supports multiple cluster architectures with separated read and write paths, allowing efficient data management across distributed systems.

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

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 verify ↗

KairosDB

Open source
as of verify ↗

Platform & deployment

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

Platforms
macOS
GreptimeDB✓
KairosDB✗
Windows
GreptimeDB✓
KairosDB✗
Linux
GreptimeDB✓
KairosDB✓
CLI
GreptimeDB✓
KairosDB✗
Deployment
Cloud / SaaS
GreptimeDB✓
KairosDB✗
Self-hosted
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
19 total
  • OpenTelemetry
  • Prometheus
  • InfluxDB
  • Loki
  • Elasticsearch
  • VictoriaLogs
  • Jaeger
  • MySQL
  • Prometheus Remote Write
  • PostgreSQL
  • JDBC
  • Grafana
  • Perses
  • Prometheus Alertmanager
  • Metabase
  • Spark
  • Trino
  • DuckDB
  • Kubernetes
Independently observed

KairosDB

3 total
  • Cassandra
  • Graphite
  • Telnet
Independently observed
Still deciding?

GreptimeDB or KairosDB: 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.