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Developer Tools · head to head

GNAT Pro vs Miro

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
Miro logo

Miro

Technology

The visual workspace for innovation

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Miro 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; Miro free tier limited to 3 editable boards; additional boards must be shared as read-only
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where GNAT Pro and Miro differ
AttributeGNAT ProMiro
Starting priceOn requestFree
Pricing modelquotefreemium
Free tierNoYes
CategoryDeveloper ToolsTechnology
FoundedUnknown2011

Identical on both: platforms (Web), 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 GNAT Pro

Nothing recorded that Miro does not also cover.

Only in Miro

  • Infinite canvas
  • Real-time collaboration
  • Digital sticky notes
  • Diagramming
  • Mind mapping
  • Video chat
  • Screen sharing
  • Templates

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

Miro

  • Collaborative whiteboarding and diagrammingnot GNAT Pro
  • Team brainstorming and ideation sessionsnot GNAT Pro
  • Project planning and workflow visualisationnot GNAT Pro
  • Remote team collaborationnot 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

Miro

  • Free tier limited to 3 editable boards; additional boards must be shared as read-only
  • AI credits heavily restricted: 25 credits per member per month on Starter, 50 on Business
  • Enterprise plan requires minimum 30 members
  • Large projects with numerous nested objects may impact performance on lower tiers

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Miro

Free
  • FreeFree
    • 3 editable boards
    • 7,000+ templates
    • Multiple formats (Docs, Tables, Slides, Kanban)
  • Starter$8/month
    • Unlimited boards
    • Visitor editing
    • High-resolution exports
  • Business$20/month
    • Unlimited workspaces
    • Unlimited guests
    • 4,700+ diagramming shapes
  • Enterprise$null/mo
    • Custom pricing from 30 members
    • Enterprise-grade security
    • Regional data hosting

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose Miro if

  • You need infinite canvas.
  • You want to start without paying.
  • You also want real-time collaboration.
Miro review

Questions people ask

Is GNAT Pro or Miro better?
Neither clearly leads. GNAT Pro starts at On request and Miro at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Miro?
Miro has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Miro.
Does GNAT Pro or Miro run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Miro for free?
Yes. Miro 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 Miro is typically brought in for.
What can GNAT Pro do that Miro cannot?
Miro covers Infinite canvas, Real-time collaboration, Digital sticky notes, Diagramming.

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
Miro: How much does Miro cost per month?

Miro offers Free (no cost), Starter at $8/month per member (billed yearly), Business at $20/month per member (billed yearly), and Enterprise with custom pricing from 30 members.

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
Miro: Is there a free version of Miro?

Yes, Miro's Free plan includes 3 editable boards, 7,000+ templates, multiple formats, limited AI trial, 250+ integrations, and 100 MCP calls per day.

Source
Miro: Do organizations get discounts on Miro?

Miro offers education and nonprofit discounts, as well as startup credits of $500-$1,000 for eligible startups.

Source
Miro: How does annual billing compare to monthly billing?

Annual billing saves 20% compared to monthly billing across all paid tiers on Miro.

Source
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