§ The result
Hireology leads Mercer | Mettl by 15 points.
Hireology finishes 15 points clear of Mercer | Mettl under rubric v1.0 — 57 against 42 — across the ATS-integrated and Assessment cohorts. Hireology leads 6 of the 7 criteria, including Bias Audit Transparency, while Mercer | Mettl leads 1, including Data Governance Disclosure. One criterion, Bias Audit Transparency, is both the widest raw gap (Hireology 83, Mercer | Mettl 42) and the heaviest weighted swing, and at 18% weight it makes up 48% of the weighted advantage Hireology holds across the 6 criteria it leads.
Vendor profile
Hireology
Hireology is an applicant tracking and hiring platform for multi-location auto dealers, healthcare providers and hospitality operators. Its AI features score applicants against employer-defined criteria (AI Match) and run rubric-scored, voice-based first-round screening interviews (AI Interview).
Vendor profile
Mercer | Mettl
Mercer | Mettl is an online talent assessment and remote-proctoring platform offering psychometric, aptitude, coding, and skills tests plus AI-assisted exam proctoring and scoring for hiring, certification, and L&D.
§ The record
Hireology is filed under ATS-integrated AI, Mercer | Mettl under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act and Illinois HB 3773. Only Mercer | Mettl is in scope of Mobley v. Workday.
| Record | Hireology | Mercer | Mettl |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | US | IN |
| Founded | 2010 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 47% of the movement so far
Bias Audit Transparency
Hireology 83 · Mercer | Mettl 42
7.4 weighted points to Hireology
12% weight · 63% of the movement so far
Post-Market Monitoring
Hireology 59 · Mercer | Mettl 38
2.5 weighted points to Hireology
20% weight · 78% of the movement so far
Article 11 Technical Documentation
Hireology 50 · Mercer | Mettl 38
2.4 weighted points to Hireology
12% weight · 87% of the movement so far
Human Oversight Design
Hireology 57 · Mercer | Mettl 45
1.4 weighted points to Hireology
15% weight · 94% of the movement so far
FRIA Support
Hireology 35 · Mercer | Mettl 28
1.1 weighted points to Hireology
8% weight · 97% of the movement so far
Customer Documentation
Hireology 58 · Mercer | Mettl 52
0.5 weighted points to Hireology
15% weight · 100% of the movement so far
Data Governance Disclosure
Hireology 52 · Mercer | Mettl 55
0.4 weighted points to Mercer | Mettl
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +14.8 — the difference between the two totals before either is rounded. Shares are of 15.7 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +15 beside that +14.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Hireology minus Mercer | Mettl.
| Category | Weight | Hireology | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 38 | +12 | +2.4 |
| Bias Audit Transparency | 18% | 83 | 42 | +41 | +7.4 |
| FRIA Support | 15% | 35 | 28 | +7 | +1.1 |
| Data Governance Disclosure | 15% | 52 | 55 | -3 | -0.4 |
| Human Oversight Design | 12% | 57 | 45 | +12 | +1.4 |
| Post-Market Monitoring | 12% | 59 | 38 | +21 | +2.5 |
| Customer Documentation | 8% | 58 | 52 | +6 | +0.5 |
| Total | 100% | 57 (F) | 42 (F) | +15 | +14.8 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | Hireology | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 4 | 0 | Audit reportSources on a separate domain | 0 | 1 | — |
| FRIA Support | 15% | 2 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 4 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 5 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 4 | 1 | Audit reportSources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 25 | 4 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Hireology has 29 evidence rows across 7 of 7 criteria — 25 with a source URL, 4 documented absences; Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Hireology sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 43 evidence rows on file for these two vendors: 29 for Hireology, across 2 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Hireology last reviewed
- September 25, 2026 · HireAIScore editorial team
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next