§ The result
3 points separate JobAdder and Mercer | Mettl.
JobAdder holds a 3-point edge over Mercer | Mettl under rubric v1.0, 45 to 42, across the ATS-integrated and Assessment cohorts. Mercer | Mettl takes 1 of the 7 criteria, Bias Audit Transparency among them, against 6 for JobAdder, whose share includes Article 11 Technical Documentation. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — JobAdder 50, Mercer | Mettl 38 — and at a 20% weight it carries 48% of the weighted advantage JobAdder holds across the 6 criteria on that side of the table.
Vendor profile
JobAdder
JobAdder is a Sydney-based ATS and CRM for recruitment agencies and in-house teams whose Adder Intelligence layer, launched in November 2025 on LLMs hosted in Amazon Bedrock, gives every applicant an AI summary and relevancy rating and also drafts client-ready candidate overviews (Smart Floats), suggests skill codes, proposes record updates and writes job ads, alongside database skill matching.
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
JobAdder 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 | JobAdder | Mercer | Mettl |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | AU | IN |
| Founded | 2007 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 38% of the movement so far
Article 11 Technical Documentation
JobAdder 50 · Mercer | Mettl 38
2.4 weighted points to JobAdder
18% weight · 58% of the movement so far
Bias Audit Transparency
JobAdder 35 · Mercer | Mettl 42
1.3 weighted points to Mercer | Mettl
12% weight · 76% of the movement so far
Human Oversight Design
JobAdder 54 · Mercer | Mettl 45
1.1 weighted points to JobAdder
12% weight · 85% of the movement so far
Post-Market Monitoring
JobAdder 43 · Mercer | Mettl 38
0.6 weighted points to JobAdder
8% weight · 93% of the movement so far
Customer Documentation
JobAdder 58 · Mercer | Mettl 52
0.5 weighted points to JobAdder
15% weight · 98% of the movement so far
FRIA Support
JobAdder 30 · Mercer | Mettl 28
0.3 weighted points to JobAdder
15% weight · 100% of the movement so far
Data Governance Disclosure
JobAdder 56 · Mercer | Mettl 55
0.1 weighted points to JobAdder
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +3.8 — the difference between the two totals before either is rounded. Shares are of 6.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +3 beside that +3.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is JobAdder minus Mercer | Mettl.
| Category | Weight | JobAdder | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 38 | +12 | +2.4 |
| Bias Audit Transparency | 18% | 35 | 42 | -7 | -1.3 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 56 | 55 | +1 | +0.1 |
| Human Oversight Design | 12% | 54 | 45 | +9 | +1.1 |
| Post-Market Monitoring | 12% | 43 | 38 | +5 | +0.6 |
| Customer Documentation | 8% | 58 | 52 | +6 | +0.5 |
| Total | 100% | 45 (F) | 42 (F) | +3 | +3.8 |
§ 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 | JobAdder | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 0 | 1 | — |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 5 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 1 | Sources on the vendor's own domainSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 5 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 24 | 5 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
JobAdder has 29 evidence rows across 7 of 7 criteria — 24 with a source URL, 5 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 JobAdder 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 JobAdder, across 3 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- JobAdder 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