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Logging · head to head

InfluxDB vs Sematext

InfluxDB logo

InfluxDB

Logging

Purpose-built time series database for metrics and events

From
Free
Rated
-
Full reviewWebsite
Sematext logo

Sematext

Logging

Full Stack Observability Platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: InfluxDB high-cardinality data causes memory pressure and performance degradation; Sematext the $5 Basic plan caps ingestion at 500 MB a day and retains logs for 7 days
  • They diverge on capability: InfluxDB covers Time-series Storage, Sematext covers Log aggregation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which InfluxDB and Sematext actually diverge.

Attributes where InfluxDB and Sematext differ
AttributeInfluxDBSematext
Pricing modelUnknownusage-based
PlatformsCloud, Docker, Linux, macOS, Windows, AWS, Google Cloud, AzureWeb, Api
Founded20122007

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Logging).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in InfluxDB

  • Time-series Storage
  • Flux Query Language
  • High Write Throughput
  • Data Compression
  • Retention Policies
  • Continuous Queries
  • Built-in Dashboards
  • Telegraf

Only in Sematext

  • Log aggregation
  • APM
  • Metrics monitoring
  • Anomaly detection
  • API
  • Webhooks
  • REST
  • Api support

Both cover

  • Web support

What people use each for

The jobs each tool is most often brought in to do.

InfluxDB

  • Monitoringnot Sematext
  • IoT datanot Sematext
  • Financial datanot Sematext
  • Log analyticsnot Sematext
  • Observabilitynot Sematext

Sematext

  • Centralised log management and search across servicesnot InfluxDB
  • Infrastructure and application monitoring alongside logsnot InfluxDB

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

InfluxDB

  • High-cardinality data causes memory pressure and performance degradation
  • No support for joins or transactions like relational databases
  • Queries limited to 72-hour window in InfluxDB 3 OSS Core
  • Clustering and authentication features absent from community version

Sematext

  • The $5 Basic plan caps ingestion at 500 MB a day and retains logs for 7 days
  • Ingestion and storage are billed on separate meters, at $0.10 per GB received and $0.15 per GB stored
  • Retention is a plan property rather than a setting, so keeping logs longer means moving tier
  • The published pricing page renders Standard and Pro figures from unresolved template placeholders, so only the Basic numbers are actually readable

Pricing, plan by plan

InfluxDB

Free
  • Cloud Serverless FreeFree
    • 5 MB writes per 5 minutes
    • 300 MB queries per 5 minutes
    • 30 day retention
  • Cloud Serverless Usage-Based$undefined/mo
    • 0.0025 USD per MB ingested
    • 0.012 USD per 100 queries
    • 0.002 USD per GB-hour storage

Sematext

Free
  • FreeFree
    • Log aggregation
    • APM
    • Metrics monitoring

Which should you pick?

Choose InfluxDB if

  • You need time-series storage.
  • You want to start without paying.
  • You work on Cloud, Docker, Linux, macOS, Windows, AWS, Google Cloud, Azure.
  • You also want flux query language.
InfluxDB review

Choose Sematext if

  • You need log aggregation.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want apm.
Sematext review

Questions people ask

Is InfluxDB or Sematext better?
Neither clearly leads. InfluxDB starts at Free and Sematext at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, InfluxDB or Sematext?
InfluxDB starts at Free and Sematext at Free.
Does InfluxDB or Sematext run on more platforms?
InfluxDB runs on Cloud, Docker, Linux, macOS, Windows, AWS, Google Cloud, Azure. Sematext runs on Web, Api.
Can I use InfluxDB for free?
Both have a free tier, so you can try either at no cost before committing.
What is InfluxDB best used for?
InfluxDB is most often used for monitoring, iot data, financial data, log analytics. Of those, monitoring and iot data are not what Sematext is typically brought in for.
What can InfluxDB do that Sematext cannot?
InfluxDB covers Time-series Storage, Flux Query Language, High Write Throughput, Data Compression. Sematext covers Log aggregation, APM, Metrics monitoring, Anomaly detection. Both handle Web support.

Answered from the vendors’ own pages

InfluxDB: Is there a free tier and what are the limits?

InfluxDB 3 Core OSS is free forever for local development and prototyping. Cloud Serverless free tier includes 5 MB writes per 5 minutes, 300 MB queries per 5 minutes, 30 day retention, and 2 databases.

Source
Sematext: How much does Sematext cost?

Sematext uses a transparent usage-based pricing model. Customers can set a Max Daily Volume for automatic rejection of excess data to prevent unexpected charges and keep costs predictable. Specific tier pricing is available through their cost calculator tool.

Source
InfluxDB: Can I self-host InfluxDB?

Yes, InfluxDB 3 Core is fully open source and can be self-hosted with no license required. InfluxDB 3 Enterprise is self-managed and includes a 30-day free trial.

Source
Sematext: How does Sematext's pricing compare to competitors?

Sematext is positioned as +3x cheaper than Datadog, with potential annual savings of $800,000 for customers logging more than 200TB/month and a reported 75% decrease in price per GB compared to alternatives.

Source
InfluxDB: What are the series cardinality limitations?

InfluxDB is sensitive to high-cardinality data. High cardinality increases RAM usage and can trigger out-of-memory errors, making it unsuitable for some workloads with many unique tag combinations.

Source
Sematext: Does Sematext offer a free trial?

Yes, Sematext offers a 14-day free trial with no credit card required, allowing you to test the platform before committing to a paid plan.

Source
InfluxDB: Does InfluxDB support SQL queries?

InfluxDB has limited SQL support. Full SQL is available in InfluxDB 3, but earlier versions support only specific SQL commands and use InfluxQL as the primary query language.

Source
InfluxDB: Can I export my data from InfluxDB?

Yes, data can be exported from InfluxDB using query results. However, the process and supported formats depend on the version and deployment type you are using.

Source
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