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Docker vs GNAT Pro

Docker logo

Docker

Technology

Accelerate how you build, share, and run applications

From
Free
Free plan
Yes
Full reviewWebsite
GNAT Pro logo

GNAT Pro

Developer Tools

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

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Docker has a free tier, so it costs nothing to try first.
  • Each has a real cost: Docker shared kernel creates security vulnerabilities when containers share the same OS kernel that can bypass container isolation; GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Docker and GNAT Pro differ
AttributeDockerGNAT Pro
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsLinux, macOS, WindowsWeb
CategoryTechnologyDeveloper Tools
Founded2010Unknown

Identical on both: 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 Docker

  • Container runtime
  • Docker Desktop
  • Docker Hub
  • Docker Compose
  • Container images
  • Dockerfile
  • Docker Swarm
  • BuildKit

Only in GNAT Pro

Nothing recorded that Docker does not also cover.

What people use each for

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

Docker

  • Application containerizationnot GNAT Pro
  • Microservicesnot GNAT Pro
  • CI/CD pipelinesnot GNAT Pro
  • Development environmentsnot GNAT Pro
  • Cloud migrationnot GNAT Pro

GNAT Pro

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

Where each one falls short

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

Docker

  • Shared kernel creates security vulnerabilities when containers share the same OS kernel that can bypass container isolation
  • Daemon socket exposure grants full root access to the host if compromised
  • Requires careful secrets management - credentials embedded in images or environment variables are easily harvested by attackers
  • Resource management complexity - misbehaving or compromised containers can consume all resources causing denial of service
  • Orchestration complexity - Docker Swarm is less capable than Kubernetes, requiring external tools for production deployments

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

Pricing, plan by plan

Docker

Free

No published plan breakdown. See the Docker review.

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Which should you pick?

Choose Docker if

  • You need container runtime.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want docker desktop.
Docker review

Choose GNAT Pro if

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

GNAT Pro review

Questions people ask

Is Docker or GNAT Pro better?
Neither clearly leads. Docker starts at Free and GNAT Pro at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Docker or GNAT Pro?
Docker has a free tier; the other does not. Paid plans start at Free for Docker and On request for GNAT Pro.
Does Docker or GNAT Pro run on more platforms?
Docker runs on Linux, macOS, Windows. GNAT Pro runs on Web.
Can I use Docker for free?
Yes. Docker has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is Docker best used for?
Docker is most often used for application containerization, microservices, ci/cd pipelines, development environments. Of those, application containerization and microservices are not what GNAT Pro is typically brought in for.
What can Docker do that GNAT Pro cannot?
Docker covers Container runtime, Docker Desktop, Docker Hub, Docker Compose.

Answered from the vendors’ own pages

Docker: What is Docker pricing?

Docker offers a freemium model with Docker Personal free, Docker Pro at $11/user/month, Docker Team at $16/user/month, and Docker Business at $24/user/month. Each tier includes Docker Desktop, Docker Hub, and Docker Scout with different usage limits.

Source
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
Docker: Can I use Docker in production?

Yes. Docker is used extensively in production environments. However, for container orchestration at scale, Kubernetes is typically paired with Docker to automate deployment, scaling, and management across clusters.

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
Docker: What are the main security concerns with Docker?

Key security risks include container breakout vulnerabilities through shared kernel exploits, daemon socket exposure that grants root access if compromised, weak isolation between containers, and credential leakage if secrets are embedded in images.

Source
Docker: Does Docker integrate with CI/CD systems?

Yes. Docker integrates with Jenkins, GitHub, and other CI/CD systems. The typical workflow involves GitHub repositories triggering automated builds in Jenkins, which prepare Dockerfiles and push images to Docker Hub for deployment.

Source
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