Why it comes up: TestGorilla publishes from $142/mo if you want a self-serve skills library instead of an eSkill quote.
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.
Best for
- Teams that want evidence before a live interview
- Organisations on the major applicant trackers
- Buyers replacing an enterprise assessment module
4.1 on Capterra from 267 reviews
Read the TestGorilla write-up · eSkill vs TestGorilla

Sales-quoted 14 day free trial API
Why it comes up: Criteria is a quoted aptitude and whole-person battery rather than eSkill's job-skills library.
Stands out: Cognitive, personality, emotional intelligence, risk, and skills tests on one platform, with video interviews in the same suite.
Watch out: All three packages are sales-quoted. AI proctoring, the AI interview agent, and AI scoring are paid upgrades, and Develop is a separate add-on.
Best for
- HR teams adding validated pre-hire tests
- Companies that want cognitive plus personality tests
- Teams that want tests and video interviews together
Read the Criteria write-up · eSkill vs Criteria
Why it comes up: Wonderlic Select is a quoted three-in-one cognitive, personality, and motivation screen, not a 600-subject skills library.
Stands out: Unlimited candidate reports are included once you are on a plan, with no per-assessment overage called out in the FAQ. The majority of customers cited on the site are companies with 100 to 2,500 employees.
Watch out: There is no public per-test or seat table. Capterra's $6,000/user/year starting price is not a vendor rate. Support channels (chat vs phone vs CSM) vary by plan.
Best for
- Employers that want cognitive, personality, and motivation in one Select report
- HR teams that need job-specific interview guides after the assessment
- Mid-market companies in the 100 to 2,500 employee band Wonderlic cites
4.5 on Capterra from 166 reviews
Read the Wonderlic write-up · eSkill vs Wonderlic
Why it comes up: Mercer Mettl is a quoted enterprise assessment and proctoring suite under the Mercer brand.
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.
Best for
- 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
4.3 on Capterra from 42 reviews
Read the Mercer Mettl write-up · eSkill vs Mercer Mettl