§ The result
3 points separate ADP and Testlify.
ADP (ATS-integrated) edges Testlify (Assessment) by 3 points under rubric v1.0, 48 to 45. The 7 criteria split 4 to 2 in favour of ADP, with 1 level: ADP is ahead on Bias Audit Transparency and Testlify on FRIA Support. One criterion, Bias Audit Transparency, is both the widest raw gap (ADP 46, Testlify 30) and the heaviest weighted swing, and at 18% weight it makes up 77% of the weighted advantage ADP holds across the 4 criteria it leads.
Vendor profile
ADP
ADP is an enterprise human capital management and payroll provider whose recruiting suite uses AI to parse, rank, and match job applicants via its Candidate Relevancy tool, ADP Assist generative-AI assistant/job-description generator, and skills intelligence.
Vendor profile
Testlify
Testlify is a skills-assessment and AI-interviewing platform that ranks candidates on a scored leaderboard from pre-built or AI-generated tests, with an AI résumé screener, AI-scored video, voice and chat interviews, and AI-assisted proctoring.
§ The record
ADP is filed under ATS-integrated AI, Testlify 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 Testlify is in scope of Mobley v. Workday.
| Record | ADP | Testlify |
|---|---|---|
| Price tier | Enterprise | Low |
| Headquarters | US | US |
| Founded | 1949 | 2022 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 62% of the movement so far
Bias Audit Transparency
ADP 46 · Testlify 30
2.9 weighted points to ADP
15% weight · 78% of the movement so far
FRIA Support
ADP 28 · Testlify 33
0.8 weighted points to Testlify
12% weight · 86% of the movement so far
Post-Market Monitoring
ADP 45 · Testlify 42
0.4 weighted points to ADP
15% weight · 92% of the movement so far
Data Governance Disclosure
ADP 57 · Testlify 55
0.3 weighted points to ADP
20% weight · 97% of the movement so far
Article 11 Technical Documentation
ADP 53 · Testlify 52
0.2 weighted points to ADP
8% weight · 100% of the movement so far
Customer Documentation
ADP 58 · Testlify 60
0.2 weighted points to Testlify
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +2.8 — the difference between the two totals before either is rounded. Shares are of 4.7 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 +2.8.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is ADP minus Testlify.
| Category | Weight | ADP | Testlify | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 53 | 52 | +1 | +0.2 |
| Bias Audit Transparency | 18% | 46 | 30 | +16 | +2.9 |
| FRIA Support | 15% | 28 | 33 | -5 | -0.8 |
| Data Governance Disclosure | 15% | 57 | 55 | +2 | +0.3 |
| Human Oversight Design | 12% | 55 | 55 | - | - |
| Post-Market Monitoring | 12% | 45 | 42 | +3 | +0.4 |
| Customer Documentation | 8% | 58 | 60 | -2 | -0.2 |
| Total | 100% | 48 (F) | 45 (F) | +3 | +2.8 |
§ 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 | ADP | Testlify | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 4 | 0 | Sources on the vendor's own domain | 6 | 0 | Audit reportSources on the vendor's own domain |
| Human Oversight Design | 12% | 3 | 0 | Sources on the vendor's own domain | 6 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 1 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 18 | 5 | Sources on the vendor's own domain | 31 | 5 | Audit reportSources on the vendor's own domain |
ADP has 23 evidence rows across 7 of 7 criteria — 18 with a source URL, 5 documented absences; Testlify has 36 evidence rows across 7 of 7 criteria — 31 with a source URL, 5 documented absences.
Provenance
The scores above are documented by 59 evidence rows on file for these two vendors: 23 for ADP, across 2 distinct source domains, and 36 for Testlify, across 1 distinct source domain.
- Rubric
- v1.0
- ADP last reviewed
- July 17, 2026 · HireAIScore editorial team
- Testlify last reviewed
- September 25, 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