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Developer Tools · head to head

GNAT Pro vs Visor

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
Visor logo

Visor

Project Management

The spreadsheet-native project management tool

From
Free
Free plan
Yes
Visit VisorFull review

The short version

  • Visor is a spreadsheet-native project management tool.
  • Visor starts at $18/mo; GNAT Pro prices on request.
  • Where GNAT Pro falls short: no pricing published on website; requires contacting AdaCore directly for quotes.
  • Where Visor falls short: syncing is metered in credits, at 10,000 a month shared on free and 50,000 on Starter.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

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

Attributes where GNAT Pro and Visor differ
AttributeGNAT ProVisor
Starting priceOn requestFree
Pricing modelQuoteFreemium
Free tierNoYes
CategoryDeveloper ToolsProject Management

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 Visor does not also cover.

Only in Visor

  • Two-way sync
  • Spreadsheet views
  • Gantt charts
  • Pivot tables
  • Custom fields
  • Jira
  • Asana
  • Salesforce

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

Visor

  • Project and portfolio managementnot GNAT Pro
  • Team collaborationnot GNAT Pro
  • Data organization and reportingnot GNAT Pro
  • Workflow automationnot 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

Visor

  • Integrations are capped by plan, at 1 on free, 2 on Starter and 3 on Team, so connecting Jira, Salesforce and HubSpot together needs the top tier
  • Syncing is metered in credits, at 10,000 a month shared on free and 50,000 on Starter
  • Extra credits are sold in booster packs at $50 for 250,000
  • The free plan is limited to 2 workbooks and 5 users
  • The flat rate Business plan is $750 a month billed annually

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Visor

Free
  • FreeFree
    • Table and Board views only
    • Max 2 workbooks
    • Max 5 workspace members
  • Starter$18/mo
    • Gantt, Timeline and Dashboard views
    • Milestones and Jira dependencies
    • Up to 500 records per workbook
  • Team$24/mo
    • Unlimited free viewers
    • Unlimited workbooks
    • Private workbooks
  • Business$750/mo
    • Flat rate for up to 100 editors
    • Unlimited free viewers
    • 2,000,000 shared sync credits per month

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose Visor if

  • You need two-way sync.
  • You want to start without paying.
  • You also want spreadsheet views.
Visor review

Questions people ask

Is GNAT Pro or Visor better?
Neither clearly leads. GNAT Pro starts at On request and Visor at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Visor?
Visor has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Visor.
Does GNAT Pro or Visor run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Visor for free?
Yes. Visor 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 Visor is typically brought in for.
What can GNAT Pro do that Visor cannot?
Visor covers Two-way sync, Spreadsheet views, Gantt charts, Pivot tables.

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
Visor: How many workbooks and records can I have on each Visor plan?

The Free plan allows up to 2 workbooks with 250 records each. Starter includes up to 10 workbooks with 500 records each. Team and Business plans offer unlimited workbooks, with Team supporting 1,000 records per workbook and Business supporting the highest capacity.

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
Visor: What are sync credits in Visor and how many do I get?

Sync credits enable real-time synchronization between workbooks and external data sources. Free includes 10,000 credits per month, Starter gets 50,000, Team gets 100,000 per license, and Business includes 2,000,000 per month. Additional credits available for $37.50 per 250,000 credits annually.

Source
Visor: How many workspace members and viewers are included in each plan?

Free plan allows 5 workspace members maximum. Starter supports up to 10 workspace members plus free viewer-only members. Team and Business plans include unlimited workspace members and unlimited free viewer-only members for sharing read-only access.

Source
Visor: What is the difference between Visor's per-user and Business flat-rate pricing?

Free, Starter, and Team are priced per user at $0, $18, and $24 per month respectively. Business is a flat rate of $750 per month and covers up to 100 editors with unlimited free viewers, making it cost-effective for large teams.

Source
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