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TimescaleDB vs Chroma

TimescaleDB logo

TimescaleDB

Software

Time-series database built on PostgreSQL for real-time analytics

From
Free
Rated
-
Full reviewWebsite
C

Chroma

Software

Open-source search infrastructure for AI

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only TimescaleDB has a free tier, so it costs nothing to try first.
  • Each has a real cost: TimescaleDB inherits PostgreSQL write path limitations, creating a ceiling on ingestion throughput; Chroma chroma Cloud meters four separate dimensions: $2.50 per GiB written, $0.33 per GiB stored monthly, $0.0075 per TiB queried, and $0.09 per GiB returned over the network, as of August 2026.

Where they differ

Only the attributes on which TimescaleDB and Chroma actually diverge.

Attributes where TimescaleDB and Chroma differ
AttributeTimescaleDBChroma
Starting priceFreeOn request
Pricing modelUnknownsubscription
Free tierYesNo
PlatformsLinux, macOS, Windows, Docker, Kubernetes, Cloud (AWS, GCP, Azure)Web
Founded2012Unknown

Identical on both: user rating (Not yet rated), category (Unknown).

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 TimescaleDB

  • Time-series Optimization
  • PostgreSQL Extension
  • Automatic Partitioning
  • Continuous Aggregates
  • Native Compression
  • Full SQL Support
  • Real-time Analytics
  • PostgreSQL

Only in Chroma

Nothing recorded that TimescaleDB does not also cover.

What people use each for

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

TimescaleDB

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

Chroma

No use cases recorded yet. See the Chroma review.

Where each one falls short

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

TimescaleDB

  • Inherits PostgreSQL write path limitations, creating a ceiling on ingestion throughput
  • Operational complexity increases significantly at scale, requiring expertise in chunk tuning and autovacuum management
  • Bloom filter indexes on compressed columns can return incorrect query results before upgrade
  • PostgreSQL 15 support ending June 2026, forcing mandatory upgrades to PostgreSQL 16 or later

Chroma

  • Chroma Cloud meters four separate dimensions: $2.50 per GiB written, $0.33 per GiB stored monthly, $0.0075 per TiB queried, and $0.09 per GiB returned over the network, as of August 2026.

Pricing, plan by plan

TimescaleDB

Free
  • Open SourceFree
    • Self-hosted TimescaleDB
    • MIT-licensed core
    • Full PostgreSQL compatibility
  • Scale Plan (Cloud)$36/month
    • Compute and storage charges
    • Multi-node HA
    • Unlimited VPCs

Chroma

On request

No published plan breakdown. See the Chroma review.

Which should you pick?

Choose TimescaleDB if

  • You need time-series optimization.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes, Cloud (AWS, GCP, Azure).
  • You also want postgresql extension.
TimescaleDB review

Choose Chroma if

Nothing in the data separates Chroma from TimescaleDB on the points above - pick on price and on how each one feels to use.

Chroma review

Questions people ask

Is TimescaleDB or Chroma better?
Neither clearly leads. TimescaleDB starts at Free and Chroma at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, TimescaleDB or Chroma?
TimescaleDB has a free tier; the other does not. Paid plans start at Free for TimescaleDB and On request for Chroma.
Does TimescaleDB or Chroma run on more platforms?
TimescaleDB runs on Linux, macOS, Windows, Docker, Kubernetes, Cloud (AWS, GCP, Azure). Chroma runs on Web.
Can I use TimescaleDB for free?
Yes. TimescaleDB has a free tier, so you can try it without paying. Chroma starts at On request.
What is TimescaleDB best used for?
TimescaleDB is most often used for monitoring, iot data, financial data, log analytics. Of those, monitoring and iot data are not what Chroma is typically brought in for.
What can TimescaleDB do that Chroma cannot?
TimescaleDB covers Time-series Optimization, PostgreSQL Extension, Automatic Partitioning, Continuous Aggregates.

Answered from the vendors’ own pages

TimescaleDB: Is TimescaleDB free?

Yes. TimescaleDB is free and open source under the Timescale License. The managed cloud service offers a free trial with $1,000 in credits expiring in 30 days.

Source
TimescaleDB: What database does TimescaleDB run on top of?

TimescaleDB is a PostgreSQL extension that runs on top of PostgreSQL. You retain full PostgreSQL compatibility including SQL queries, transactions, and ecosystem tools.

Source
TimescaleDB: How much can TimescaleDB compress data?

TimescaleDB offers transparent columnar compression that can reduce storage by up to 95%. Newer data remains in row-oriented format for fast writes, while older data is automatically compressed to the column store.

Source
TimescaleDB: Does TimescaleDB require manual partitioning?

No. TimescaleDB handles automatic time-based partitioning through hypertables. Data is automatically chunked based on time intervals, requiring no manual partition management.

Source
TimescaleDB: What PostgreSQL versions does TimescaleDB support?

As of October 2025, TimescaleDB requires PostgreSQL 16 or greater. PostgreSQL 15 support will end with the June 2026 release, after which all instances must upgrade to PostgreSQL 16.

Source
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