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KairosDB vs TDengine

KairosDB

5.7#28 in time-series databases
WebAPILinuxSelf-hosted
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TDengine logo

TDengine

8.3#1 in time-series databasesFree plan
Free planWebAPILinuxmacOS
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What both publish

FactKairosDBTDengine
DeploymentThe documentation says KairosDB runs under Kubernetes and is mostly stateless, while Cassandra can be harder to run efficiently there.Self-hosted deployments can run at the edge, in containers or virtual machines, on local servers, or in public, private, or hybrid clouds.
LicenseThe repository identifies the license as Apache License 2.0.The TDengine TSDB open-source repository is licensed under GNU Affero General Public License version 3.0.
SupportThe project README directs users to a KairosDB discussion group for questions and community involvement.Annual licenses include business-hours standard support, while premium support offers 24×7 Severity 1 coverage; free-tier support is optional at $3,375 per year.

KairosDB plans

No prices published.

TDengine plans

  • Free TierFree
  • Self-hosted Free TierFree
  • TDengine Cloud Starter$970 a month
  • Starter$970 a month
  • TDengine Cloud Small$1,740 a month
  • TDengine Cloud Medium$2,570 a month

Pick KairosDB if…

KairosDB suits developers and operators building self-hosted, distributed time-series systems. It fits teams needing multiple ingestion protocols, retention, scaling, and Cassandra-backed storage.

Pick TDengine if…

TDengine is designed for industrial enterprises and organizations running traditional data historians or legacy industrial IoT platforms, especially those needing time-series ingestion and analysis.

Charts they share