The result

1 point separates Aon Assessment and Zappyhire.

Aon Assessment (Assessment) edges Zappyhire (Screening) by 1 point under rubric v1.0, 35 to 34. Aon Assessment and Zappyhire each lead 3 of the 7 criteria, with 1 level, though the side of the split Aon Assessment holds (headed by Article 11 Technical Documentation) adds up to more weighted points. One criterion, Article 11 Technical Documentation, is both the widest raw gap (Aon Assessment 40, Zappyhire 30) and the heaviest weighted swing, and at 20% weight it makes up 77% of the weighted advantage Aon Assessment holds across the 3 criteria it leads.

Criteria won

7 criteria

  • Aon Assessment3
  • Zappyhire3
  • Level1
Widest raw gap
Article 11 Technical Documentation40 vs 30
Heaviest weighted swing
Article 11 Technical Documentation20% weight

Keep this comparison

Both scores and all 7 criteria, side by side, in your inbox.

Sent once, with links to turn on alerts for either vendor. No list.

The record

Categories, scope and company facts.

Aon Assessment is filed under Assessment AI, Zappyhire under Screening AI. They also share 1 secondary category: Video interview.

RecordAon AssessmentZappyhire
Price tierEnterpriseMid
HeadquartersDEIN
Founded20022018

What decides it

The criteria that move the gap, heaviest swing first.

  1. Article 11 Technical Documentation

    20% weight48% of the movement so far

    Aon Assessment40
    Zappyhire30

    2.0 weighted points to Aon Assessment

  2. Data Governance Disclosure

    15% weight63% of the movement so far

    Aon Assessment38
    Zappyhire42

    0.6 weighted points to Zappyhire

  3. Human Oversight Design

    12% weight77% of the movement so far

    Aon Assessment45
    Zappyhire50

    0.6 weighted points to Zappyhire

  4. Bias Audit Transparency

    18% weight86% of the movement so far

    Aon Assessment30
    Zappyhire28

    0.4 weighted points to Aon Assessment

  5. Post-Market Monitoring

    12% weight94% of the movement so far

    Aon Assessment25
    Zappyhire28

    0.4 weighted points to Zappyhire

  6. Customer Documentation

    8% weight100% of the movement so far

    Aon Assessment48
    Zappyhire45

    0.2 weighted points to Aon Assessment

Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to +1.0 — the difference between the two totals before either is rounded. Shares are of 4.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +1 beside that +1.0.

Category-by-category

Raw score per criterion, with weighted delta.

Δ is Aon Assessment minus Zappyhire, coloured for whichever of the two it favours.

CategoryWeightAon AssessmentZappyhireΔ rawΔ weighted
Article 11 Technical Documentation20%4030+10+2.0
Bias Audit Transparency18%3028+2+0.4
FRIA Support15%2525--
Data Governance Disclosure15%3842-4-0.6
Human Oversight Design12%4550-5-0.6
Post-Market Monitoring12%2528-3-0.4
Customer Documentation8%4845+3+0.2
Total100%35F34F+1+1.0

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.

CriterionWeightAon AssessmentZappyhire
CitedAbsencesAudit / hostingCitedAbsencesAudit / hosting
Article 11 Technical Documentation20%21Sources on the vendor's own domain11Sources on the vendor's own domain
Bias Audit Transparency18%11Audit reportSources on a separate domain21Audit reportSources on a separate domain
FRIA Support15%11Sources on the vendor's own domain11Sources on the vendor's own domain
Data Governance Disclosure15%21Sources on the vendor's own domain30Sources on the vendor's own domain
Human Oversight Design12%20Sources on the vendor's own domain21Sources on the vendor's own domain
Post-Market Monitoring12%11—11Sources on the vendor's own domain
Customer Documentation8%21Sources on the vendor's own domain21Sources on the vendor's own domain
All criteria100%116Audit reportSources on the vendor's own domainSources on a separate domain126Audit reportSources on the vendor's own domainSources on a separate domain

Aon Assessment has 17 evidence rows across 7 of 7 criteria — 11 with a source URL, 6 documented absences; Zappyhire has 18 evidence rows across 7 of 7 criteria — 12 with a source URL, 6 documented absences; some documentation or audit rows for Aon Assessment and Zappyhire sit on a domain separate from the vendor's own site.

Provenance

The scores above are documented by 35 evidence rows on file for these two vendors: 17 for Aon Assessment, across 3 distinct source domains, and 18 for Zappyhire, across 2 distinct source domains.

Rubric
v1.0
Aon Assessment last reviewed
June 7, 2026 · HireAIScore editorial team
Zappyhire 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.

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