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Cybersecurity · head to head

Frontegg vs GNAT Pro

Frontegg logo

Frontegg

Cybersecurity

Customer identity and access management platform for SaaS applications

From
Free
Free plan
Yes
Full reviewWebsite
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

The short version

  • Only Frontegg has a free tier, so it costs nothing to try first.
  • Each has a real cost: Frontegg detailed per-unit pricing beyond the free tier is not published, requiring use of an online calculator or sales contact to estimate costs.; GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes
  • Prices and features above were last checked on 29 August 2026.

Where they differ

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

Attributes where Frontegg and GNAT Pro differ
AttributeFronteggGNAT Pro
Starting priceFreeOn request
Pricing modelusage-basedquote
Free tierYesNo
Platformsweb, apiWeb
CategoryCybersecurityDeveloper Tools

Identical on both: 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 Frontegg

  • Hosted login
  • Enterprise SSO/SCIM
  • Multi-tenant organizations
  • Custom domains
  • M2M tokens
  • Fraud protection

Only in GNAT Pro

Nothing recorded that Frontegg does not also cover.

What people use each for

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

Frontegg

  • Adding enterprise SSO/SCIM to a B2B SaaS productnot GNAT Pro
  • Multi-tenant customer identity managementnot GNAT Pro
  • White-labeled, custom-domain login experiencesnot GNAT Pro
  • Securing AI agent access to a SaaS product via Agen.conot GNAT Pro

GNAT Pro

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

Where each one falls short

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

Frontegg

  • Detailed per-unit pricing beyond the free tier is not published, requiring use of an online calculator or sales contact to estimate costs.
  • Advanced fraud protection and multiple environments are Enterprise-only, unavailable on the Pay As You Go plan.
  • The 7,500 free monthly active users is comparatively modest next to some competitors' free tiers.
  • As a broader CIAM platform, it can be more complex to integrate than lighter-weight developer-first auth tools for smaller apps.

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

Frontegg

Free
  • Pay As You GoFree
    • 7,500 monthly active users included
    • 5 enterprise connections (SSO/SCIM)
    • Unlimited organizations
  • Enterprise$undefined/month
    • Custom pricing
    • Multiple environments
    • Advanced fraud protection

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Which should you pick?

Choose Frontegg if

  • You need hosted login.
  • You want to start without paying.
  • You work on web, api.
  • You also want enterprise sso/scim.
Frontegg review

Choose GNAT Pro if

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

GNAT Pro review

Questions people ask

Is Frontegg or GNAT Pro better?
Neither clearly leads. Frontegg 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, Frontegg or GNAT Pro?
Frontegg has a free tier; the other does not. Paid plans start at Free for Frontegg and On request for GNAT Pro.
Does Frontegg or GNAT Pro run on more platforms?
Frontegg runs on web, api. GNAT Pro runs on Web.
Can I use Frontegg for free?
Yes. Frontegg has a free tier, so you can try it without paying. GNAT Pro starts at On request.
What is Frontegg best used for?
Frontegg is most often used for adding enterprise sso/scim to a b2b saas product, multi-tenant customer identity management, white-labeled, custom-domain login experiences, securing ai agent access to a saas product via agen.co. Of those, adding enterprise sso/scim to a b2b saas product and multi-tenant customer identity management are not what GNAT Pro is typically brought in for.
What can Frontegg do that GNAT Pro cannot?
Frontegg covers Hosted login, Enterprise SSO/SCIM, Multi-tenant organizations, Custom domains.

Answered from the vendors’ own pages

Frontegg: What does Frontegg cost?

Frontegg's Pay As You Go plan is free up to 7,500 monthly active users, after which pricing scales with users, enterprise connections and M2M tokens via an online calculator; Enterprise pricing is custom.

Source
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
Frontegg: Is there a free plan and what are its limits?

Yes, the free Pay As You Go plan includes 7,500 monthly active users, 5 enterprise SSO/SCIM connections, unlimited organizations, and a custom domain.

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
Frontegg: How is usage metered?

Pricing is consumption-based, driven by monthly active users, monthly enterprise connections (SSO/SCIM), and monthly M2M tokens, with customers paying only for usage beyond the free 7,500-user threshold.

Source
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