Software · head to head
Convex vs Couchbase
Convex
Software
The reactive backend platform that keeps up with you and your agents
- From
- On request
- Rated
- -
The short version
- Only Couchbase 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.; Couchbase the free tier is a single node with 8 GB of storage and forum support only
Where they differ
Only the attributes on which Convex and Couchbase actually diverge.
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 Couchbase does not also cover.
Only in Couchbase
- JSON Document Model
- SQL++ Query
- Full-text Search
- Eventing
- Analytics
- Mobile Sync
- Multi-dimensional Scaling
- Kafka
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.
Couchbase
- Running a distributed NoSQL document database as a managed servicenot Convex
- Mobile sync and offline first applications backed by a cloud databasenot 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.
Couchbase
- The free tier is a single node with 8 GB of storage and forum support only
- Node rates are hourly and quoted as starting figures, from $0.15 an hour on Basic to $0.49 on Enterprise
- The Developer Pro and Enterprise plans require 3 nodes, so the hourly rate multiplies before any usage
- Backup storage is billed separately at $0.07 per GB a month, and analytics backups at $0.14
- Support response time is a plan feature, at 8 hours on Developer Pro against 30 minutes on Enterprise
- AI and analytics run as separately priced planes at up to $0.86 an hour per node
Pricing, plan by plan
Convex
On requestNo published plan breakdown. See the Convex review.
Couchbase
Free- CommunityFree
- Full features
- Community support
- Self-managed
- Capella FreeFree
- Managed service
- Limited resources
- Cloud hosted
Which should you pick?
Choose Convex if
Nothing in the data separates Convex from Couchbase on the points above - pick on price and on how each one feels to use.
Choose Couchbase if
- You need json document model.
- You want to start without paying.
- You work on Linux, Windows, Mac, Docker, Web.
- You also want sql++ query.
Questions people ask
- Is Convex or Couchbase better?
- Neither clearly leads. Convex starts at On request and Couchbase at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Convex or Couchbase?
- Couchbase has a free tier; the other does not. Paid plans start at On request for Convex and Free for Couchbase.
- Does Convex or Couchbase run on more platforms?
- Convex runs on Web. Couchbase runs on Linux, Windows, Mac, Docker, Web.
- Can I use Couchbase for free?
- Yes. Couchbase has a free tier, so you can try it without paying. Convex starts at On request.
- What can Convex do that Couchbase cannot?
- Couchbase covers JSON Document Model, SQL++ Query, Full-text Search, Eventing.