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Developer Tools · head to head

GNAT Pro vs Rill Data

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
Rill Data logo

Rill Data

Business Intelligence

Local-first BI on DuckDB and ClickHouse with dashboards defined as code

From
$20/month
Free plan
No
Visit Rill DataFull review

The short version

  • Rill Data starts at $20/mo; GNAT Pro prices on request.
  • Where GNAT Pro falls short: no pricing published on website; requires contacting AdaCore directly for quotes.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which GNAT Pro and Rill Data actually diverge.

Attributes where GNAT Pro and Rill Data differ
AttributeGNAT ProRill Data
Starting priceOn request$20/month
Pricing modelQuotePer user per month plus metered compute
PlatformsWebWeb, Linux, macOS, Windows
CategoryDeveloper ToolsBusiness Intelligence

Identical on both: free tier (No).

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 Rill Data does not also cover.

Only in Rill Data

  • Local development
  • Dashboards as code
  • Embedded DuckDB
  • Bring your own database
  • Alerts and scheduled reports
  • Embedded analytics

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

Rill Data

  • An analytics team that wants dashboard changes to go through code review rather than being edited in a web UInot GNAT Pro
  • Interactive exploration of event-scale data where a warehouse round trip per filter click is too slownot GNAT Pro
  • Embedding fast slice-and-dice dashboards into a product where the underlying store is already ClickHouse or Druidnot GNAT Pro
  • A data engineer prototyping a metrics layer locally on a laptop before committing to any cloud spendnot 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

Rill Data

  • The seat price of 20 dollars is misleading as a budget figure: Rill’s own calculator puts a small two-seat project at around 256 dollars a month, with compute making up the great majority
  • Dashboards are defined in YAML and SQL, so business users cannot create or change one without a developer and a Git workflow, which stalls self-service adoption
  • It is built for the explore-a-metric pattern and does not produce pixel-perfect financial or operational reports, so most organisations still need a second reporting tool
  • AI tokens and API calls are quota-limited per seat, with API overage at a cent per call, so programmatic consumers can create an unbudgeted line item
  • As a smaller vendor competing against Looker, Tableau and Power BI, the ecosystem of consultants, templates and trained analysts is thin, which raises the cost of hiring for it

Pricing, plan by plan

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Rill Data

$20/month
  • Starter$20/mo
    • Per seat, up to twenty seats
    • Three projects
    • Compute at 0.15 USD per compute unit hour
  • Growth$30/mo
    • Per seat, up to one hundred seats
    • Ten projects
    • Compute at 0.20 USD per compute unit hour
  • EnterpriseOn request
    • Annual platform licence with negotiated capacity
    • Unlimited seats and projects
    • Dedicated infrastructure

Which should you pick?

Choose GNAT Pro if

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

GNAT Pro review

Choose Rill Data if

  • You need local development.
  • You work on Web, Linux, macOS, Windows.
  • You also want dashboards as code.
Rill Data review

Questions people ask

Is GNAT Pro or Rill Data better?
Neither clearly leads. GNAT Pro starts at On request and Rill Data at $20/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Rill Data?
GNAT Pro starts at On request and Rill Data at $20/month.
Does GNAT Pro or Rill Data run on more platforms?
GNAT Pro runs on Web. Rill Data runs on Web, Linux, macOS, Windows.
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 Rill Data is typically brought in for.
What can GNAT Pro do that Rill Data cannot?
Rill Data covers Local development, Dashboards as code, Embedded DuckDB, Bring your own database.

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
Rill Data: Is Rill open source?

The Rill developer binary is open source and free to run locally; Rill Cloud is the paid product.

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
Rill Data: How much does it actually cost?

Seats start at 20 USD per month, but hosted compute at 0.15 USD per compute unit hour typically dominates the bill. Bringing your own database removes the usage fee.

Rill Data: Can business users build dashboards?

Not directly. Dashboards are YAML and SQL under version control.

Rill Data: Which databases can back a deployed project?

DuckDB, ClickHouse, Druid, Pinot, Snowflake and others.

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