# GreptimeDB vs KairosDB

**Leader by Vioscale score:** GreptimeDB

| Attribute | GreptimeDB | KairosDB |
|---|---|---|
| **Vioscale score** | 49.7 (62% (medium)) | 25.3 (56% (medium)) |
| activity.commits_last_30d | 100 | 0 |
| adoption.dependent_repos | 0 | 32 |
| adoption.github_stars | 6,573 | 1,762 |
| adoption.package_downloads_weekly | - | 9 |
| deployment.options | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | 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. | 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. |
| features.capabilities | `{"clustering":"distributed","data_model":"both","deployment":"managed","compression":"columnar","downsampling":"continuous_aggregates","ingest_model":"both","licence_class":"source_available","retention_ttl":"automatic","query_language":"SQL and PromQL","replication_ha":true,"high_cardinality":"strong","sql_compatibility":"full_sql","prometheus_remote_write":true}` | `{"clustering":"distributed","data_model":"metrics","deployment":"self_hosted","downsampling":"continuous_aggregates","ingest_model":"push","licence_class":"source_available","retention_ttl":"manual","query_language":"REST API, Graphite protocol","replication_ha":true,"high_cardinality":"strong","sql_compatibility":"non_sql"}` |
| integrations.count | 8 | 3 |
| integrations.list | `[{"name":"OpenTelemetry"},{"name":"Prometheus"},{"name":"InfluxDB"},{"name":"Loki"},{"name":"Elasticsearch"},{"name":"VictoriaLogs"},{"name":"Jaeger"},{"name":"MySQL"}]` | `[{"name":"Cassandra"},{"name":"Graphite"},{"name":"Telnet"}]` |
| language.primary | Rust | Java |
| license.spdx | Apache-2.0 | Apache-2.0 |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Open Source","summary":"Free, open-source","features":["High-performance ingestion","High-performance query","Multi-protocol support (OTLP, Prometheus, InfluxDB)","Log query endpoints","Cluster deployment","Horizontal scalability","Basic authentication and access control","Data encryption"],"description":"Community edition available on GitHub","contactSales":false},{"free":false,"name":"GreptimeDB Enterprise Fully-Managed","summary":"From $290/month, fully-managed","features":["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","Read-write separation","Tiered caching","Auto-backup with multi-region replicas","Enterprise web dashboard","Role-based access control","Comprehensive audit trail","SLA-backed response times"],"components":[{"kind":"fixed","amount":290,"period":"month","currency":"USD"}],"description":"Fully-managed cloud deployment with guaranteed resources and automatic scaling","contactSales":false,"includedLimits":{"data_storage":"Unlimited"}},{"free":false,"name":"GreptimeDB Enterprise Bring Your Own Cloud","summary":"Custom pricing, contact sales","features":["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","Enterprise-ready extensions","All core capabilities from open-source","Professional-tier features"],"description":"Enterprise deployment in your own cloud infrastructure with full data sovereignty","contactSales":true}],"summary":"From $290/month (fully-managed). Free open-source tier. Custom enterprise pricing for self-hosted deployments.","currency":"USD","freeTier":true,"sourceUrl":"https://greptime.com/pricing","retrievedAt":"2026-08-13T23:05:49.493Z","startingPrice":{"amount":290,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","sourceUrl":"https://kairosdb.github.io/","retrievedAt":"2026-08-13T23:03:34.808Z"}` |
| pricing.free_tier | yes | - |
| pricing.model | commercial | open_source |
| pricing.price_level | high | free |
| pricing.transparent | yes | - |
| release.cadence_days | 3 | 92 |
| release.history | `[{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.3.0-nightly-20260824","date":"2026-08-24T08:59:33Z","type":"prerelease","version":"v1.3.0-nightly-20260824"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.2.0-beta.2","date":"2026-08-21T14:51:51Z","type":"prerelease","version":"v1.2.0-beta.2"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.3.0-70470bafb-20260807-1786098766","date":"2026-08-07T11:46:37Z","type":"prerelease","version":"v1.3.0-70470bafb-20260807-1786098766"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.2.0-beta.1","date":"2026-08-01T04:23:45Z","type":"prerelease","version":"v1.2.0-beta.1"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.4","date":"2026-07-24T08:15:15Z","type":"stable","version":"v1.1.4"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.2.0-d1e61a4ad-20260720-1784560249","date":"2026-07-20T16:20:10Z","type":"prerelease","version":"v1.2.0-d1e61a4ad-20260720-1784560249"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.3","date":"2026-07-17T03:46:53Z","type":"stable","version":"v1.1.3"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.2-0783225e0-20260710-1783671342","date":"2026-07-10T09:23:35Z","type":"prerelease","version":"v1.1.2-0783225e0-20260710-1783671342"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.2.0-nightly-20260706","date":"2026-07-06T02:57:41Z","type":"prerelease","version":"v1.2.0-nightly-20260706"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.2","date":"2026-07-02T13:58:53Z","type":"stable","version":"v1.1.2"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.2.0-8513d8d6b-20260625-1782368704","date":"2026-06-25T07:30:14Z","type":"prerelease","version":"v1.2.0-8513d8d6b-20260625-1782368704"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.0-nightly-20260622","date":"2026-06-22T03:13:11Z","type":"prerelease","version":"v1.1.0-nightly-20260622"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.1","date":"2026-06-18T09:48:21Z","type":"stable","version":"v1.1.1"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.0-nightly-20260615","date":"2026-06-15T03:17:00Z","type":"prerelease","version":"v1.1.0-nightly-20260615"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.0","date":"2026-06-14T09:30:56Z","type":"prerelease","version":"v1.1.0"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.1.0-nightly-20260525","date":"2026-05-25T03:25:14Z","type":"prerelease","version":"v1.1.0-nightly-20260525"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.0.0-nightly-20260518","date":"2026-05-18T03:22:37Z","type":"prerelease","version":"v1.0.0-nightly-20260518"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.0.2","date":"2026-05-14T13:57:16Z","type":"stable","version":"v1.0.2"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.0.0-nightly-20260511","date":"2026-05-11T03:26:00Z","type":"prerelease","version":"v1.0.0-nightly-20260511"},{"url":"https://github.com/GreptimeTeam/greptimedb/releases/tag/v1.0.0-nightly-20260504","date":"2026-05-04T03:19:04Z","type":"prerelease","version":"v1.0.0-nightly-20260504"}]` | `[{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.3.0","date":"2021-08-09T04:31:37Z","type":"stable","version":"v1.3.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.2.2","date":"2018-11-10T04:04:05Z","type":"stable","version":"v1.2.2"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.3.0-beta1","date":"2018-04-14T04:43:02Z","type":"prerelease","version":"v1.3.0-beta1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.2.1","date":"2018-03-31T19:07:29Z","type":"stable","version":"v1.2.1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.2.0","date":"2018-02-01T14:54:51Z","type":"stable","version":"v1.2.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.3","date":"2017-01-04T00:24:16Z","type":"stable","version":"v1.1.3"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.2","date":"2016-09-08T04:29:39Z","type":"stable","version":"v1.1.2"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.1","date":"2015-12-08T03:09:45Z","type":"stable","version":"v1.1.1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.1.0","date":"2015-11-05T23:22:46Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v1.0.0","date":"2015-06-05T05:08:49Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.5beta2","date":"2015-04-03T13:25:15Z","type":"prerelease","version":"v0.9.5beta2"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.5beta1","date":"2015-01-26T20:29:20Z","type":"prerelease","version":"v0.9.5beta1"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.4","date":"2014-07-07T21:30:43Z","type":"stable","version":"v0.9.4"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.3","date":"2014-06-18T16:10:41Z","type":"stable","version":"v0.9.3"},{"url":"https://github.com/kairosdb/kairosdb/releases/tag/v0.9.2","date":"2014-06-18T16:51:02Z","type":"stable","version":"v0.9.2"}]` |
| reliability.status_page | - | yes |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.scorecard | - | 3.4 |
| security.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,"max_severity":null}` | `{"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"}` |

## Capabilities (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 |

*Source: Vioscale. Generated 2026-09-01T15:20:27.242Z. "-" = undocumented, not absent.*