Head to head

Mercer Mettl vs TestGorilla

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Mercer Mettl

Sales-quoted Free trial

Mercer Mettl sells enterprise skills assessments, simulations, and AI remote proctoring under Mercer. Pricing is personalized. The US and global pricing pages are quote forms, with a try-for-free path on mettl.com.

Where Mercer Mettl fits

  • Enterprises that want Mercer-backed skills tests and proctoring in one contract
  • TA teams running high-volume proctored assessments across countries
  • L&D and certification programs that need the same platform as hiring tests
  • Buyers who will start on try-for-free, then a custom package

TestGorilla

$142/mo Free tier

Skills assessments before the interview. Free plan, then Core at $142/mo and Plus from $400/mo.

Where TestGorilla fits

  • Teams that want evidence before a live interview
  • Organisations on the major applicant trackers
  • Buyers replacing an enterprise assessment module
  • Small teams that can start on the free plan

At a glance

DetailMercer MettlTestGorilla
Starting priceSales-quoted$142/mo
Free tier–No✓Yes
Free trialYesNot on record
MCP server–No–No
Public API–No–No
Listed underAssessmentsAssessments, Candidate fraud & AI detection
Capterra4.3 from 42 reviews4.1 from 267 reviews

Where they pull apart

Mercer Mettl

Stands out: A large job-skills library, pay-as-you-go packaging language, and AI-based remote proctoring sit on one Mercer-branded cloud. The vendor cites 6,000-plus customers, 25 million-plus assessments a year, and 20-plus languages.

Watch out: There is no public per-test or per-seat table. You pick products on a form and wait for a quote. This is an assessment platform, not an ATS.

Not the right fit for

  • SMBs that want a published $142/mo test library they can buy online
  • Teams that only need a cognitive screen like Wonderlic Select

TestGorilla

Stands out: A large test library with anti-cheating measures and a genuine free plan.

Watch out: The jump from Core to Plus is steep, and it is tests rather than video interviewing.

Not the right fit for

  • Desks that need video as the product
  • Buyers who want one flat low price

Pros and cons

Mercer Mettl

  • Try for free plus a deep skills library under the Mercer brand
  • AI remote proctoring for hiring and exam integrity
  • Capterra 4.3 from 42 reviews on Mercer Mettl Talent Assessments
  • The vendor does not publish per-test or seat prices
  • Quote motion is slow compared with self-serve test libraries
  • Product surface spans hiring, L&D, and exams, so it can feel broad

TestGorilla

  • Free plan with monthly credits
  • Works with most major trackers
  • Anti-cheating measures included
  • Steep step from Core to Plus
  • No MCP
  • Not a video interview suite

What each one costs

Mercer Mettl

Sales-quoted

Mercer Mettl sells personalized assessment packages. The US pricing page is a quote form with pay-as-you-go language and no public per-test table. Try for free is offered on mettl.com. AI proctoring, the skills library, and SOC 2 Type 2 claims are in the core offering. Ask sales for a quote. Confirm current terms on the vendor site.

Checked 19 Sep 2026

TestGorilla

$142/mo

From ~$75/mo. Confirm current terms on the vendor site.

Checked 17 Sep 2026

Common questions

Can you try Mercer Mettl or TestGorilla for free?
TestGorilla carries a free tier on our listing. Mercer Mettl offers a free trial.

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Editorial listings, never paid rankings. Prices checked 19 Sep 2026. Confirm current terms on the vendor site. Spot an error?