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Software · head to head

PlanetScale vs Convex

PlanetScale logo

PlanetScale

Software

The MySQL-compatible serverless database

From
$15/month
Rated
-
Full reviewWebsite
C

Convex

Software

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

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: PlanetScale eBS High Availability requires 3-node configuration with replication overhead; 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.

Where they differ

Only the attributes on which PlanetScale and Convex actually diverge.

Attributes where PlanetScale and Convex differ
AttributePlanetScaleConvex
Starting price$15/monthOn request
Pricing modelsubscriptionusage-based
PlatformsCloud-hosted (AWS, GCP, Azure)Web
Founded2018Unknown

Identical on both: free tier (No), 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 PlanetScale

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

Only in Convex

Nothing recorded that PlanetScale does not also cover.

What people use each for

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

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

Convex

No use cases recorded yet. See the Convex review.

Where each one falls short

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

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

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.

Pricing, plan by plan

PlanetScale

$15/month

No published plan breakdown. See the PlanetScale review.

Convex

On request

No published plan breakdown. See the Convex review.

Which should you pick?

Choose PlanetScale if

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

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

Questions people ask

Is PlanetScale or Convex better?
Neither clearly leads. PlanetScale starts at $15/month and Convex at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PlanetScale or Convex?
PlanetScale starts at $15/month and Convex at On request.
Does PlanetScale or Convex run on more platforms?
PlanetScale runs on Cloud-hosted (AWS, GCP, Azure). Convex runs on Web.
What is PlanetScale best used for?
PlanetScale is most often used for mysql database hosting with automatic failover and replication, vitess-based sharding for horizontal scaling across large datasets, cloud provider flexibility across aws, gcp, azure with 60+ regions, cost-effective database clusters using arm64 architecture options. Of those, mysql database hosting with automatic failover and replication and vitess-based sharding for horizontal scaling across large datasets are not what Convex is typically brought in for.
What can PlanetScale do that Convex cannot?
PlanetScale covers Database Branching, Non-blocking Schema Changes, Insights, Horizontal Scaling.
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Related pages

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