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GNAT Pro vs PlanetScale

GNAT Pro logo

GNAT Pro

Developer Tools

Software development environments and toolchains for Ada, C/C++ and Rust

From
On request
Free plan
No
Visit GNAT ProFull review
PlanetScale logo

PlanetScale

Databases

The MySQL-compatible serverless database

From
Free
Free plan
Yes
Visit PlanetScaleFull review

The short version

  • PlanetScale is a MySQL-compatible serverless database platform.
  • PlanetScale starts at $15/mo; GNAT Pro prices on request.
  • Where GNAT Pro falls short: no pricing published on website; requires contacting AdaCore directly for quotes.
  • Where PlanetScale falls short: pricing varies significantly across 17+ AWS and GCP regions.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which GNAT Pro and PlanetScale actually diverge.

Attributes where GNAT Pro and PlanetScale differ
AttributeGNAT ProPlanetScale
Starting priceOn requestFree
Pricing modelQuoteUsage-based
Free tierNoYes
CategoryDeveloper ToolsDatabases

Identical on both: platforms (Web).

Not yet recorded: founded for GNAT Pro.

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 GNAT Pro

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.

GNAT Pro

  • Building certified avionics software meeting DO-178B/C standardsnot PlanetScale
  • Developing automotive embedded systems with ISO-26262 compliancenot PlanetScale
  • Integrating Ada, C/C++, and Rust components in single codebasenot PlanetScale
  • Managing software supply chain vulnerabilities and SBOMsnot PlanetScale
  • Supporting long-lived software systems spanning decadesnot PlanetScale

PlanetScale

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

Where each one falls short

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

GNAT Pro

  • No pricing published on website; requires contacting AdaCore directly for quotes
  • Vendor indicates per-user, per-year subscription model but does not disclose specific costs

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

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

PlanetScale

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

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose PlanetScale if

  • You need database branching.
  • You want to start without paying.
  • You also want non-blocking schema changes.
PlanetScale review

Questions people ask

Is GNAT Pro or PlanetScale better?
Neither clearly leads. GNAT Pro starts at On request and PlanetScale at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or PlanetScale?
PlanetScale has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for PlanetScale.
Does GNAT Pro or PlanetScale run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use PlanetScale for free?
Yes. PlanetScale has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is GNAT Pro best used for?
GNAT Pro is most often used for building certified avionics software meeting do-178b/c standards, developing automotive embedded systems with iso-26262 compliance, integrating ada, c/c++, and rust components in single codebase, managing software supply chain vulnerabilities and sboms. Of those, building certified avionics software meeting do-178b/c standards and developing automotive embedded systems with iso-26262 compliance are not what PlanetScale is typically brought in for.
What can GNAT Pro do that PlanetScale cannot?
PlanetScale covers Database Branching, Non-blocking Schema Changes, Insights, Horizontal Scaling.

Answered from the vendors’ own pages

GNAT Pro: How much does GNAT Pro cost?

GNAT Pro pricing is not published on the website. Customers must request a pricing quote by contacting AdaCore directly or speaking with a GNAT Pro expert.

Source
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
GNAT Pro: What is GNAT Pro licensing model?

GNAT Pro is sold on a per-user, per-year basis with no license locks. Customers can request pricing for their specific needs.

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
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
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
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