Comparison

GreptimeDB vs TDengine

No clear leader: TDengine (54.5) and GreptimeDB (50.1) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
GreptimeDB50
TDengine55
Score
vioscaleAI score
GreptimeDB50 / 100medium · 57%
TDengine55 / 100medium · 71%
Pricing
Free tier
GreptimeDB✓
TDengine✓
Model
GreptimeDBfreemium
TDenginefreemium
Price level
GreptimeDBhigh
TDenginehigh
Starting price
GreptimeDB$290
TDengine$970
Transparent
GreptimeDB✓
TDengine✓
Integrations
Count
GreptimeDB13
TDengine7
Reliability
Status page
GreptimeDB–
TDengine✓
Adoption
Dependent repos
GreptimeDB0
TDengine7
Github stars
GreptimeDB6,733
TDengine25,158
Activity
Commits last 30d
GreptimeDB100
TDengine100
Release
Cadence days
GreptimeDB4
TDengine28
History
GreptimeDB20 items
TDengine20 items
License
Spdx
GreptimeDBApache-2.0
TDengineAGPL-3.0
Language
Primary
GreptimeDBRust
TDengineC
Content
Faq
GreptimeDB8 items
TDengine7 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
TDengineSQL
SQL compatibility
GreptimeDBFull SQL
TDengineFull SQL
Ingest
Ingest model
GreptimeDBBoth
TDenginePush
Model
Data model
GreptimeDBBoth
TDengineMetrics (labels/tags)
Lifecycle
Downsampling / rollups
GreptimeDBContinuous aggregates
TDengineContinuous aggregates
Retention / TTL
GreptimeDBAutomatic
TDengine-
Storage
Compression (columnar / delta / Gorilla)
GreptimeDBcolumnar
TDengine-
Performance
High-cardinality handling
GreptimeDBStrong
TDengineStrong
Scale
Clustering / horizontal scale
GreptimeDBDistributed / sharded
TDengineDistributed / sharded
Replication / HA
GreptimeDB✓
TDengine✓
Deployment
Deployment
GreptimeDBManaged
TDengineSelf-hosted
Interop
Prometheus remote-write compatible
GreptimeDB✓
TDengine-
Licensing
Licence class
GreptimeDBSource-available
TDengineSource-available

What each one is

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

GreptimeDB

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

TDengine

Open-source time-series database for real-time processing of high-volume sensor data, supporting distributed deployment and AI-powered analytics.

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

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 ↗

TDengine

from $970/moHybridFree tier

Free tier up to 5,000 tags. Self-hosted annual licenses from $12,500/year, perpetual from $31,250. Managed cloud from $970/month. High availability at +30% of plan cost.

  • Free TierFree
    • All TSDB and IDMP features
    • Official support available separately
  • Self-Hosted Annual LicenseFrom $12,500/year (7,500 tags). Pricing scales with deployment size.
    • Standard support included
    • Product updates and patches
  • Self-Hosted Perpetual LicenseFrom $31,250 (7,500 tags). One-time cost, pricing scales with deployment size.
    • Perpetual usage rights
    • Optional annual support available
  • Cloud - Starter$970/month or $11,640/year
    • Fully managed on AWS, Azure, or GCP
    • Managed infrastructure and operations
  • Cloud - Small$1,740/month or $20,880/year
  • Cloud - Medium$2,570/month or $30,840/year
  • Cloud - Large$3,500/month or $42,000/year
  • Cloud - XLarge$5,220/month or $62,640/year
as of verify ↗

Platform & deployment

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

Platforms
Web
GreptimeDB✗
TDengine✓
macOS
GreptimeDB✓
TDengine✓
Windows
GreptimeDB✓
TDengine✓
Linux
GreptimeDB✓
TDengine✓
CLI
GreptimeDB✓
TDengine✓
Deployment
Cloud / SaaS
GreptimeDB✓
TDengine✓
Self-hosted
GreptimeDB✓
TDengine✓
On-premise
GreptimeDB✗
TDengine✓
Hybrid
GreptimeDB✓
TDengine✓

Integrations

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

GreptimeDB

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

TDengine

10 total
  • Java
  • Python
  • Go
  • MQTT
  • Kafka
  • OPC
  • PI System
  • Excel
  • Apache Pulsar
  • AVEVA Historian
Independently observed
Still deciding?

GreptimeDB or TDengine: 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.