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Developer Tools · head to head

Avo vs GNAT Pro

Avo logo

Avo

Developer Tools

Analytics governance: define a tracking plan, generate typed code from it, and catch drift before release

From
Free
Rated
-
Full reviewWebsite
GNAT Pro logo

GNAT Pro

Developer Tools

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

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Avo has a free tier, so it costs nothing to try first.
  • Each has a real cost: Avo editor seats are the metered unit and only five are included on the Team plan, so a company where many squads define their own events pays 50 dollars per additional editor and the real cost quickly exceeds the headline 250.; GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Avo and GNAT Pro differ
AttributeAvoGNAT Pro
Starting priceFreeOn request
Pricing modelPer editor seat per monthquote
Free tierYesNo
PlatformsWeb, iOS, Android, Web SDK, APIWeb

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 Avo

  • Tracking plan
  • Code generation
  • Inspector
  • Branching and approvals
  • Schema sync
  • Stakeholder access
  • Audit trail
  • Data design standards

Only in GNAT Pro

Nothing recorded that Avo does not also cover.

What people use each for

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

Avo

  • A product team whose iOS and Android event names have drifted apart, making cross-platform funnels meaninglessnot GNAT Pro
  • An analytics lead who wants tracking changes to go through review rather than appearing in production unannouncednot GNAT Pro
  • A company migrating between analytics tools that needs a canonical event schema independent of any vendornot GNAT Pro
  • An engineering organisation that wants event tracking mistakes caught by the compiler rather than by an analyst three months laternot GNAT Pro

GNAT Pro

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

Where each one falls short

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

Avo

  • Editor seats are the metered unit and only five are included on the Team plan, so a company where many squads define their own events pays 50 dollars per additional editor and the real cost quickly exceeds the headline 250.
  • Avo governs event definitions but does not fix historic data, so an organisation with years of inconsistent tracking still faces the backfill problem it cannot solve.
  • Code generation requires engineering teams to adopt generated modules in their build, and in practice some platform teams resist, leaving parts of the estate ungoverned and the plan only partly enforced.
  • Inspector event volume is capped by tier, at 100,000 on free and one million on enterprise, so a high-traffic consumer product samples rather than observes everything and drift can hide in the unobserved portion.
  • It is an additional tool in an analytics stack that already costs money, and justifying it requires the organisation to accept that its existing data is unreliable, which is a political argument as much as a budgetary one.

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

Avo

Free
  • FreeFree
    • 2 editor seats
    • Unlimited comment seats
    • 100,000 events observed in Inspector
  • Team$250/month
    • 5 editor seats included
    • Additional editors at $50 per month annually
    • Approval workflows and branch audits
  • Enterprise$undefined/year
    • Custom seats and event volume
    • 1,000,000 events observed in Inspector
    • Enforceable approval and design standards

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Which should you pick?

Choose Avo if

  • You need tracking plan.
  • You want to start without paying.
  • You work on Web, iOS, Android, Web SDK, API.
  • You also want code generation.
Avo review

Choose GNAT Pro if

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

GNAT Pro review

Questions people ask

Is Avo or GNAT Pro better?
Neither clearly leads. Avo 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, Avo or GNAT Pro?
Avo has a free tier; the other does not. Paid plans start at Free for Avo and On request for GNAT Pro.
Does Avo or GNAT Pro run on more platforms?
Avo runs on Web, iOS, Android, Web SDK, API. GNAT Pro runs on Web.
Can I use Avo for free?
Yes. Avo has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is Avo best used for?
Avo is most often used for a product team whose ios and android event names have drifted apart, making cross-platform funnels meaningless, an analytics lead who wants tracking changes to go through review rather than appearing in production unannounced, a company migrating between analytics tools that needs a canonical event schema independent of any vendor, an engineering organisation that wants event tracking mistakes caught by the compiler rather than by an analyst three months later. Of those, a product team whose ios and android event names have drifted apart, making cross-platform funnels meaningless and an analytics lead who wants tracking changes to go through review rather than appearing in production unannounced are not what GNAT Pro is typically brought in for.
What can Avo do that GNAT Pro cannot?
Avo covers Tracking plan, Code generation, Inspector, Branching and approvals.

Answered from the vendors’ own pages

Avo: Is the free tier usable in production?

Yes. It includes two editors, code generation and 100,000 events observed in Inspector, which is enough for a small team.

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
Avo: What exactly does code generation give me?

Type-safe tracking functions per platform, so a wrong event name or property type fails at compile time rather than in production data.

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
Avo: Does Avo replace Amplitude or Mixpanel?

No. It governs the events those tools receive; you still need an analytics product.

Avo: How much is the Team plan?

250 US dollars a month billed annually for five editors, or 300 billed monthly, with extra editors at 50 dollars.

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