§ The result
Plum takes the total, JobAdder takes more of the criteria.
Plum scores 54 and JobAdder 45 under rubric v1.0, a 9-point gap across the Assessment and ATS-integrated cohorts. JobAdder leads more of the criteria than Plum — 4 to 3 — but Bias Audit Transparency, which Plum leads, carries 18% of the rubric, and the weighted sum still falls to Plum. One criterion, Bias Audit Transparency, is both the widest raw gap (JobAdder 35, Plum 83) and the heaviest weighted swing, and at 18% weight it makes up 81% of the weighted advantage Plum holds across the 3 criteria it leads.
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
Plum
Plum is a pre-employment talent assessment platform that uses a Five-Factor (Big Five) psychometric Discovery Survey and a Talent Match model to score and rank candidates on behavioral "durable skills" for role fit, hiring, and development.
§ The record
JobAdder is filed under ATS-integrated AI, Plum 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 Plum is in scope of Mobley v. Workday.
| Record | JobAdder | Plum |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | AU | CA |
| Founded | 2007 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 70% of the movement so far
Bias Audit Transparency
JobAdder 35 · Plum 83
8.6 weighted points to Plum
20% weight · 83% of the movement so far
Article 11 Technical Documentation
JobAdder 50 · Plum 58
1.6 weighted points to Plum
12% weight · 90% of the movement so far
Post-Market Monitoring
JobAdder 43 · Plum 36
0.8 weighted points to JobAdder
8% weight · 93% of the movement so far
Customer Documentation
JobAdder 58 · Plum 63
0.4 weighted points to Plum
15% weight · 96% of the movement so far
FRIA Support
JobAdder 30 · Plum 28
0.3 weighted points to JobAdder
15% weight · 98% of the movement so far
Data Governance Disclosure
JobAdder 56 · Plum 54
0.3 weighted points to JobAdder
12% weight · 100% of the movement so far
Human Oversight Design
JobAdder 54 · Plum 52
0.2 weighted points to JobAdder
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -9.0 — the difference between the two totals before either is rounded. Shares are of 12.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -9 beside that -9.0.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is JobAdder minus Plum.
| Category | Weight | JobAdder | Plum | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 50 | 58 | -8 | -1.6 |
| Bias Audit Transparency | 18% | 35 | 83 | -48 | -8.6 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 56 | 54 | +2 | +0.3 |
| Human Oversight Design | 12% | 54 | 52 | +2 | +0.2 |
| Post-Market Monitoring | 12% | 43 | 36 | +7 | +0.8 |
| Customer Documentation | 8% | 58 | 63 | -5 | -0.4 |
| Total | 100% | 45 (F) | 54 (F) | -9 | -9.0 |
§ 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.
| Criterion | Weight | JobAdder | Plum | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on the vendor's own domain | 3 | 0 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 3 | 0 | Audit reportSources on the vendor's own domain |
| FRIA Support | 15% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 5 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 2 | 1 | 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 | 1 | Audit reportSources on the vendor's own domain |
| Post-Market Monitoring | 12% | 5 | 0 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 4 | 1 | Sources on the vendor's own domainSources on a separate domain | 3 | 0 | Sources on the vendor's own domain |
| All criteria | 100% | 24 | 5 | Audit reportSources on the vendor's own domainSources on a separate domain | 15 | 4 | Audit reportSources on the vendor's own domain |
JobAdder has 29 evidence rows across 7 of 7 criteria — 24 with a source URL, 5 documented absences; Plum has 19 evidence rows across 7 of 7 criteria — 15 with a source URL, 4 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 48 evidence rows on file for these two vendors: 29 for JobAdder, across 3 distinct source domains, and 19 for Plum, across 1 distinct source domain.
- Rubric
- v1.0
- JobAdder last reviewed
- September 25, 2026 · HireAIScore editorial team
- Plum 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