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Database & Data Management · head to head

Convex vs PlanetScale

C

Convex

Database & Data Management

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

From
On request
Rated
-
Full reviewWebsite
PlanetScale logo

PlanetScale

Database & Data Management

The MySQL-compatible serverless database

From
$15/month
Rated
-
Full reviewWebsite

The short version

  • 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.; PlanetScale eBS High Availability requires 3-node configuration with replication overhead

Where they differ

Only the attributes on which Convex and PlanetScale actually diverge.

Attributes where Convex and PlanetScale differ
AttributeConvexPlanetScale
Starting priceOn request$15/month
Pricing modelusage-basedsubscription
PlatformsWebCloud-hosted (AWS, GCP, Azure)
FoundedUnknown2018

Identical on both: free tier (No), user rating (Not yet rated), category (Database & Data Management).

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 PlanetScale does not also cover.

Only in PlanetScale

  • Database Branching
  • Non-blocking Schema Changes
  • Insights
  • Horizontal Scaling
  • Connection Pooling
  • Query Caching
  • Automatic Backups
  • Global Replication

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.

PlanetScale

  • MySQL database hosting with automatic failover and replicationnot Convex
  • Vitess-based sharding for horizontal scaling across large datasetsnot Convex
  • Cloud provider flexibility across AWS, GCP, Azure with 60+ regionsnot Convex
  • Cost-effective database clusters using ARM64 architecture optionsnot 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.

PlanetScale

  • EBS High Availability requires 3-node configuration with replication overhead
  • EBS Non-HA single-node option lacks redundancy and automatic failover
  • Pricing varies by cloud provider and region, requiring queries for specific rates
  • ARM64 architecture only available on EBS tier, not Metal deployments

Pricing, plan by plan

Convex

On request

No published plan breakdown. See the Convex review.

PlanetScale

$15/month

No published plan breakdown. See the PlanetScale review.

Which should you pick?

Choose Convex if

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

Convex review

Choose PlanetScale if

  • You need database branching.
  • You work on Cloud-hosted (AWS, GCP, Azure).
  • You also want non-blocking schema changes.
PlanetScale review

Questions people ask

Is Convex or PlanetScale better?
Neither clearly leads. Convex starts at On request and PlanetScale at $15/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Convex or PlanetScale?
Convex starts at On request and PlanetScale at $15/month.
Does Convex or PlanetScale run on more platforms?
Convex runs on Web. PlanetScale runs on Cloud-hosted (AWS, GCP, Azure).
What can Convex do that PlanetScale cannot?
PlanetScale covers Database Branching, Non-blocking Schema Changes, Insights, Horizontal Scaling.
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Related pages

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