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Developer Tools · head to head

GNAT Pro vs Tilt

GNAT Pro logo

GNAT Pro

Developer Tools

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

From
On request
Rated
-
Full reviewWebsite
Tilt logo

Tilt

Developer Tools

Local Kubernetes development loop that rebuilds and live-updates containers on save

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Tilt has a free tier, so it costs nothing to try first.
  • Each has a real cost: GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes; Tilt docker acquired Tilt in 2022 and the team now splits its time across Compose and Docker Desktop, so feature velocity is modest and the product's long-term priority inside Docker is not guaranteed; treat it as a stable utility, not a growing platform.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where GNAT Pro and Tilt differ
AttributeGNAT ProTilt
Starting priceOn requestFree
Pricing modelquoteOpen source, no licence fee
Free tierNoYes
PlatformsWebLinux, macOS, Windows

Identical on both: user rating (Not yet rated), category (Developer Tools).

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 Tilt does not also cover.

Only in Tilt

  • Live update
  • Tiltfile as code
  • Unified web UI
  • Selective rebuilds
  • Local and remote clusters
  • Resource dependencies
  • Extensions registry
  • Custom buttons and triggers

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 Tilt
  • Developing automotive embedded systems with ISO-26262 compliancenot Tilt
  • Integrating Ada, C/C++, and Rust components in single codebasenot Tilt
  • Managing software supply chain vulnerabilities and SBOMsnot Tilt
  • Supporting long-lived software systems spanning decadesnot Tilt

Tilt

  • A team of ten or more engineers whose application is fifteen microservices on Kubernetes and who currently wait on CI to test a changenot GNAT Pro
  • An organisation onboarding new developers who want a single command that stands up the whole stack from a committed Tiltfilenot GNAT Pro
  • A platform team giving product engineers a consistent local environment against a shared remote development clusternot GNAT Pro
  • A codebase where one repository contains several services and rebuilding all of them on every edit is the main source of lost timenot 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

Tilt

  • Docker acquired Tilt in 2022 and the team now splits its time across Compose and Docker Desktop, so feature velocity is modest and the product's long-term priority inside Docker is not guaranteed; treat it as a stable utility, not a growing platform.
  • The Tiltfile is Starlark, a Python dialect, so non-trivial setups become real programs that need reviewing and maintaining, and the person who wrote yours becomes a single point of failure.
  • Live update only works when the running container can accept synced files and restart the process; compiled languages, distroless images and read-only filesystems often force you back to a full image rebuild, which removes the main benefit.
  • It assumes Kubernetes. If your development target is plain Docker Compose or serverless functions, Tilt adds a cluster you did not need and a layer of abstraction with no payoff.
  • There is no commercial support contract, no SLA and no paid tier, so when a Kubernetes version upgrade breaks something you are dependent on GitHub issues and a Slack channel rather than a vendor you can escalate to.

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Tilt

Free
  • TiltFree
    • Apache 2.0 licensed
    • All features, no paid tier
    • Community support via the Kubernetes Slack #tilt channel

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose Tilt if

  • You need live update.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want tiltfile as code.
Tilt review

Questions people ask

Is GNAT Pro or Tilt better?
Neither clearly leads. GNAT Pro starts at On request and Tilt at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Tilt?
Tilt has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Tilt.
Does GNAT Pro or Tilt run on more platforms?
GNAT Pro runs on Web. Tilt runs on Linux, macOS, Windows.
Can I use Tilt for free?
Yes. Tilt 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 Tilt is typically brought in for.
What can GNAT Pro do that Tilt cannot?
Tilt covers Live update, Tiltfile as code, Unified web UI, Selective rebuilds.

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
Tilt: Is Tilt free?

Yes, entirely. It is Apache 2.0 open source with no paid tier and no licence fee.

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
Tilt: Who owns Tilt now?

Docker, which acquired it in May 2022. It remains open source and the repository is still actively maintained.

Tilt: Do I need a remote cluster?

No. It works against a local cluster such as kind, minikube or Docker Desktop, and also against a shared remote development cluster if your services are too heavy to run locally.

Tilt: How is it different from Skaffold?

Both automate the build-deploy loop. Tilt puts more weight on the live-update path and a multi-service dashboard; Skaffold is more configuration-driven and closer to Google's tooling.

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