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Databases · head to head

PlanetScale vs Terraform

PlanetScale logo

PlanetScale

Databases

The MySQL-compatible serverless database

From
Free
Rated
-
Full reviewWebsite
Terraform logo

Terraform

Technology

Automate infrastructure on any cloud

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: PlanetScale pricing varies significantly across 17+ AWS and GCP regions; Terraform hCL syntax requires learning a domain-specific language with limited GUI alternatives
  • They diverge on capability: PlanetScale covers Database Branching, Terraform covers Infrastructure as code.

Where they differ

Only the attributes on which PlanetScale and Terraform actually diverge.

Attributes where PlanetScale and Terraform differ
AttributePlanetScaleTerraform
Pricing modelusage-basedUnknown
PlatformsCloud-hosted (AWS, GCP, Azure)Linux, macOS, Windows
CategoryDatabasesTechnology
Founded20182012

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Terraform

  • Infrastructure as code
  • Resource graph
  • Plan & apply
  • State management
  • Provider ecosystem
  • Modules
  • Workspaces
  • Remote backends

What people use each for

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

PlanetScale

  • MySQL-compatible applications requiring horizontal scalingnot Terraform
  • PostgreSQL deployments with custom cluster configurationsnot Terraform
  • Multi-region database deployments on AWS or GCPnot Terraform
  • Applications requiring transparent sharding via Vitessnot Terraform

Terraform

  • Multi-cloud provisioningnot PlanetScale
  • Infrastructure automationnot PlanetScale
  • Environment replicationnot PlanetScale
  • Disaster recoverynot PlanetScale
  • Compliance automationnot PlanetScale

Where each one falls short

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

PlanetScale

  • Pricing varies significantly across 17+ AWS and GCP regions
  • Additional costs for EBS storage beyond base tier, backup storage, and egress
  • Dedicated PgBouncer and replicas incur separate charges
  • Metal tier pricing increases sharply with larger configurations

Terraform

  • HCL syntax requires learning a domain-specific language with limited GUI alternatives
  • State file management is complex, especially at scale with multiple workspaces
  • terraform import workflow is fiddly and must be done one resource at a time
  • No native error handling or try-catch capabilities like traditional programming languages
  • No automatic rollback capability - must manually delete and re-run if needed

Pricing, plan by plan

PlanetScale

Free
  • Postgres EBS Single-Node (ARM64 PS-5)$5/month
    • 512 MiB RAM
    • Single-node configuration
    • EBS storage included
  • Postgres EBS HA (ARM64 PS-5)$15/month
    • 512 MiB RAM
    • 3-node high-availability setup
    • 1 primary + 2 replicas
  • Postgres Metal (M-10)$50/month
    • 1/8 vCPU, 1 GiB RAM
    • 3-node HA configuration
    • 10 GiB NVMe storage included
  • Vitess Non-Metal 3-Node$39/month
    • Sharding-capable database
    • x86-64 architecture
    • 3-node configuration

Terraform

Free

No published plan breakdown. See the Terraform review.

Which should you pick?

Choose PlanetScale if

  • You need database branching.
  • You want to start without paying.
  • You work on Cloud-hosted (AWS, GCP, Azure).
  • You also want non-blocking schema changes.
PlanetScale review

Choose Terraform if

  • You need infrastructure as code.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want resource graph.
Terraform review

Questions people ask

Is PlanetScale or Terraform better?
Neither clearly leads. PlanetScale starts at Free and Terraform at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PlanetScale or Terraform?
PlanetScale starts at Free and Terraform at Free.
Does PlanetScale or Terraform run on more platforms?
PlanetScale runs on Cloud-hosted (AWS, GCP, Azure). Terraform runs on Linux, macOS, Windows.
Can I use PlanetScale for free?
Both have a free tier, so you can try either at no cost before committing.
What is PlanetScale best used for?
PlanetScale is most often used for mysql-compatible applications requiring horizontal scaling, postgresql deployments with custom cluster configurations, multi-region database deployments on aws or gcp, applications requiring transparent sharding via vitess. Of those, mysql-compatible applications requiring horizontal scaling and postgresql deployments with custom cluster configurations are not what Terraform is typically brought in for.
What can PlanetScale do that Terraform cannot?
PlanetScale covers Database Branching, Non-blocking Schema Changes, Insights, Horizontal Scaling. Terraform covers Infrastructure as code, Resource graph, Plan & apply, State management.

Answered from the vendors’ own pages

PlanetScale: How much does a PlanetScale Postgres database cost per month?

PlanetScale Postgres pricing starts at $5/month for single-node ARM64 configurations with 512 MiB RAM and $15/month for the same specs in high-availability mode with 1 primary and 2 replicas. Metal tier starts at $50/month for M-10 configuration (1/8 vCPU, 1 GiB RAM). Exact pricing depends on cluster size, node architecture (ARM64 vs x86-64), storage configuration, and selected AWS/GCP region.

Source
Terraform: Is there a free tier?

Yes. The free tier supports up to 500 managed resources and 1 concurrent run. The legacy free tier ends March 31, 2026; remaining organizations auto-convert to the enhanced free tier.

Source
PlanetScale: Is there a free tier for PlanetScale?

PlanetScale offers a free tier for development and testing workloads. After free tier limits are reached, usage-based pricing applies starting at $5/month for the smallest Postgres single-node configuration, with costs scaling based on cluster size, compute, storage, and additional features like dedicated PgBouncer or replicas.

Source
Terraform: What clouds does Terraform support?

Terraform supports AWS, Microsoft Azure, Google Cloud Platform, Oracle Cloud, Docker, and HashiCorp's own HCP Terraform managed service, with over 2000 providers available.

Source
PlanetScale: What is the difference between PlanetScale ARM64 and x86-64 pricing?

ARM64 instances cost significantly less than x86-64 equivalents. For example, a Postgres EBS HA cluster with 512 MiB RAM costs $15/month on ARM64 but $39/month on x86-64. This pricing difference extends across all cluster sizes, with larger x86-64 configurations reaching up to $5,599/month compared to ARM64 alternatives.

Source
Terraform: Do I need HCP Terraform Cloud or can I run locally?

Terraform runs locally by default, storing state on your machine. For team collaboration and production use, remote backends like S3, Azure Storage, or HCP Terraform are recommended for locking and security.

Source
PlanetScale: What is included in a PlanetScale cluster price versus additional costs?

The advertised cluster price covers the base compute and configured storage. Additional charges apply for EBS storage beyond the base allocation, backup storage, data egress, optional dedicated PgBouncer connections, and replicas beyond the base high-availability configuration. Regional pricing varies across 17+ AWS and GCP zones.

Source
Terraform: Is HCL hard to learn?

HCL is designed to be human-readable and sits between JSON and YAML. It supports comments, variables, functions, and conditional logic. While beginners can get started quickly, mastering advanced features takes practice.

Source
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