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DataStax vs FaunaDB

DataStax logo

DataStax

Software

The real-time data company for AI applications

From
Free
Rated
-
Full reviewWebsite
FaunaDB logo

FaunaDB

Software

The distributed serverless database for modern applications

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: DataStax dataStax's own Astra DB documentation states the Enterprise plan is an annual, contract-based plan with negotiated pricing, meaning list prices are not published for that tier; 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.
  • They diverge on capability: DataStax covers Cassandra Compatible, FaunaDB covers ACID Transactions.

Where they differ

Only the attributes on which DataStax and FaunaDB actually diverge.

Attributes where DataStax and FaunaDB differ
AttributeDataStaxFaunaDB
PlatformsWeb, Aws, Azure, GcpWeb
Founded20102012

Identical on both: starting price (Free), pricing model (freemium), 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 DataStax

  • Cassandra Compatible
  • Vector Search
  • Multi-cloud
  • Streaming
  • CDC
  • LangChain
  • LlamaIndex
  • Kafka

Only in FaunaDB

  • ACID Transactions
  • Document-relational Model
  • Global Distribution
  • Temporal Queries
  • Multi-tenancy
  • GraphQL
  • Netlify
  • Vercel

Both cover

  • Serverless
  • GraphQL API
  • Web support

What people use each for

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

DataStax

  • Real-time applicationsnot FaunaDB
  • Content managementnot FaunaDB
  • User profilesnot FaunaDB
  • Mobile backends
  • Cachingnot FaunaDB

FaunaDB

  • Serverless applicationsnot DataStax
  • Rapid prototypingnot DataStax
  • Mobile backends
  • JAMstacknot DataStax
  • Microservicesnot DataStax

Both are used for mobile backends, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

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

DataStax

  • DataStax's own Astra DB documentation states the Enterprise plan is an annual, contract-based plan with negotiated pricing, meaning list prices are not published for that tier
  • DataStax's Astra DB documentation directs Standard plan customers to IBM's watsonx.data pricing for exact consumption-based rates following the DataStax/IBM deal, rather than publishing them on DataStax's own site

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.

Pricing, plan by plan

DataStax

Free
  • FreeFree
    • 5GB storage
    • 40M read/write ops
    • Vector search
  • Pay As You GoFree
    • Usage-based pricing
    • Multi-region
    • Enterprise support

FaunaDB

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

Which should you pick?

Choose DataStax if

  • You need cassandra compatible.
  • You want to start without paying.
  • You work on Web, Aws, Azure, Gcp.
  • You also want vector search.
DataStax review

Choose FaunaDB if

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

Questions people ask

Is DataStax or FaunaDB better?
Neither clearly leads. DataStax starts at Free and FaunaDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, DataStax or FaunaDB?
DataStax starts at Free and FaunaDB at Free.
Does DataStax or FaunaDB run on more platforms?
DataStax runs on Web, Aws, Azure, Gcp. FaunaDB runs on Web.
Can I use DataStax for free?
Both have a free tier, so you can try either at no cost before committing.
What is DataStax best used for?
DataStax is most often used for real-time applications, content management, user profiles, mobile backends. Of those, real-time applications and content management are not what FaunaDB is typically brought in for.
What can DataStax do that FaunaDB cannot?
DataStax covers Cassandra Compatible, Vector Search, Multi-cloud, Streaming. FaunaDB covers ACID Transactions, Document-relational Model, Global Distribution, Temporal Queries. Both handle Serverless, GraphQL API, Web support.
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