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FaunaDB vs ClickHouse

FaunaDB logo

FaunaDB

Software

The distributed serverless database for modern applications

From
Free
Rated
-
Full reviewWebsite
ClickHouse logo

ClickHouse

Software

Fast open-source column-oriented database for real-time analytics

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: FaunaDB the Internet Archive's capture of FaunaDB's homepage on 5 January 2019 confirmed a free 'Try Cloud' tier alongside a self-hosted download, with a separate Pricing page linked but not itself retrievable from the archive within two attempts.; ClickHouse limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems
  • They diverge on capability: FaunaDB covers ACID Transactions, ClickHouse covers Column-oriented Storage.

Where they differ

Only the attributes on which FaunaDB and ClickHouse actually diverge.

Attributes where FaunaDB and ClickHouse differ
AttributeFaunaDBClickHouse
Pricing modelfreemiumUnknown
PlatformsWebLinux, macOS, Windows (via Docker)
Founded20122021

Identical on both: starting price (Free), free tier (Yes), 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 FaunaDB

  • ACID Transactions
  • Document-relational Model
  • GraphQL API
  • Global Distribution
  • Temporal Queries
  • Multi-tenancy
  • Serverless
  • GraphQL

Only in ClickHouse

  • Column-oriented Storage
  • Real-time Analytics
  • SQL Support
  • Linear Scalability
  • Data Compression
  • Vectorized Query Execution
  • Approximate Calculations
  • Kafka

Both cover

  • Web support

What people use each for

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

FaunaDB

  • Serverless applicationsnot ClickHouse
  • Rapid prototypingnot ClickHouse
  • Mobile backendsnot ClickHouse
  • JAMstacknot ClickHouse
  • Microservicesnot ClickHouse

ClickHouse

  • Business intelligencenot FaunaDB
  • Data warehousingnot FaunaDB
  • Real-time analyticsnot FaunaDB
  • Reportingnot FaunaDB
  • Machine learningnot FaunaDB

Where each one falls short

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

FaunaDB

  • The Internet Archive's capture of FaunaDB's homepage on 5 January 2019 confirmed a free 'Try Cloud' tier alongside a self-hosted download, with a separate Pricing page linked but not itself retrievable from the archive within two attempts.

ClickHouse

  • Limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems
  • Requires upfront schema design discipline with MergeTree engine choices and sort/partition keys
  • Experimental vector search support, not production-ready for vector operations
  • Different query syntax from standard SQL requiring migration planning
  • Limited JOIN capabilities compared to traditional relational databases
  • Migration complexity with 2-4 weeks estimated for data type mapping and query translation

Pricing, plan by plan

FaunaDB

Free
  • FreeFree
    • 100K read ops
    • 50K write ops
    • 1GB storage
  • Pro$25/month
    • Pay per use
    • Priority support
    • Advanced features

ClickHouse

Free

No published plan breakdown. See the ClickHouse review.

Which should you pick?

Choose FaunaDB if

  • You need acid transactions.
  • You want to start without paying.
  • You also want document-relational model.
FaunaDB review

Choose ClickHouse if

  • You need column-oriented storage.
  • You want to start without paying.
  • You work on Linux, macOS, Windows (via Docker).
  • You also want real-time analytics.
ClickHouse review

Questions people ask

Is FaunaDB or ClickHouse better?
Neither clearly leads. FaunaDB starts at Free and ClickHouse at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FaunaDB or ClickHouse?
FaunaDB starts at Free and ClickHouse at Free.
Does FaunaDB or ClickHouse run on more platforms?
FaunaDB runs on Web. ClickHouse runs on Linux, macOS, Windows (via Docker).
Can I use FaunaDB for free?
Both have a free tier, so you can try either at no cost before committing.
What is FaunaDB best used for?
FaunaDB is most often used for serverless applications, rapid prototyping, mobile backends, jamstack. Of those, serverless applications and rapid prototyping are not what ClickHouse is typically brought in for.
What can FaunaDB do that ClickHouse cannot?
FaunaDB covers ACID Transactions, Document-relational Model, GraphQL API, Global Distribution. ClickHouse covers Column-oriented Storage, Real-time Analytics, SQL Support, Linear Scalability. Both handle Web support.

Answered from the vendors’ own pages

ClickHouse: What is ClickHouse best used for?

ClickHouse is optimized for analytical workloads on large datasets. It excels at fast aggregations and queries, being 10-100x faster than PostgreSQL on large aggregations.

Source
ClickHouse: Does ClickHouse support transactions?

ClickHouse has limited transaction support and expensive UPDATE/DELETE operations. It is not suitable for transactional workloads requiring strict ACID guarantees.

Source
ClickHouse: How does ClickHouse compare to PostgreSQL?

ClickHouse is 10-100x faster for analytics but PostgreSQL is better for transactional workloads. Many teams use both: PostgreSQL for writes via MaterializedPostgreSQL replication to ClickHouse for analytics.

Source
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