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Software · head to head

Convex vs CouchDB

C

Convex

Software

The reactive backend platform that keeps up with you and your agents

From
On request
Rated
-
Full reviewWebsite
CouchDB logo

CouchDB

Software

Seamless multi-master sync with Apache CouchDB

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only CouchDB has a free tier, so it costs nothing to try first.
  • Each has a real cost: Convex the Free and Starter tier includes only 1 million function calls and 0.5 GB of database storage per month before per-unit overage charges of $2.20 per million calls apply, as of August 2026.; CouchDB append-only storage model may have performance implications for certain workloads with high update rates

Where they differ

Only the attributes on which Convex and CouchDB actually diverge.

Attributes where Convex and CouchDB differ
AttributeConvexCouchDB
Starting priceOn requestFree
Pricing modelusage-basedopen-source
Free tierNoYes
PlatformsWebDocker, Windows (x64), macOS, Linux (Debian, Ubuntu, RHEL, CentOS), Raspberry Pi
FoundedUnknown1999

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 Convex

Nothing recorded that CouchDB does not also cover.

Only in CouchDB

  • Multi-master Replication
  • HTTP/JSON API
  • MapReduce Views
  • ACID Semantics
  • Offline-first
  • Conflict Resolution
  • Fauxton UI
  • PouchDB

What people use each for

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

Convex

No use cases recorded yet. See the Convex review.

CouchDB

  • Offline-first applications requiring seamless replication across mobile and server environmentsnot Convex
  • Multi-master deployments where data consistency eventually resolves across regionsnot Convex
  • IoT and edge computing scenarios with intermittent connectivitynot Convex

Where each one falls short

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

Convex

  • The Free and Starter tier includes only 1 million function calls and 0.5 GB of database storage per month before per-unit overage charges of $2.20 per million calls apply, as of August 2026.

CouchDB

  • Append-only storage model may have performance implications for certain workloads with high update rates
  • Requires network synchronisation for cluster data consistency; can introduce latency in multi-master scenarios
  • No explicit support for complex joins; MapReduce queries may be inefficient compared to relational databases

Pricing, plan by plan

Convex

On request

No published plan breakdown. See the Convex review.

CouchDB

Free

No published plan breakdown. See the CouchDB review.

Which should you pick?

Choose Convex if

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

Convex review

Choose CouchDB if

  • You need multi-master replication.
  • You want to start without paying.
  • You work on Docker, Windows (x64), macOS, Linux (Debian, Ubuntu, RHEL, CentOS), Raspberry Pi.
  • You also want http/json api.
CouchDB review

Questions people ask

Is Convex or CouchDB better?
Neither clearly leads. Convex starts at On request and CouchDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Convex or CouchDB?
CouchDB has a free tier; the other does not. Paid plans start at On request for Convex and Free for CouchDB.
Does Convex or CouchDB run on more platforms?
Convex runs on Web. CouchDB runs on Docker, Windows (x64), macOS, Linux (Debian, Ubuntu, RHEL, CentOS), Raspberry Pi.
Can I use CouchDB for free?
Yes. CouchDB has a free tier, so you can try it without paying. Convex starts at On request.
What can Convex do that CouchDB cannot?
CouchDB covers Multi-master Replication, HTTP/JSON API, MapReduce Views, ACID Semantics.
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