§ The result
Willo leads Arena Analytics on 6 of the 7 criteria.
Willo scores 41 and Arena Analytics 32 under rubric v1.0, a 9-point gap across the Video interview and Screening cohorts. Willo leads 6 of the 7 criteria and the remaining criterion is level, so Arena Analytics is ahead on none of them; the closest of the 6 Willo leads is Bias Audit Transparency, Arena Analytics 25 to Willo 30. Even Human Oversight Design, the widest raw gap and the heaviest weighted swing (Arena Analytics 38, Willo 62, 12% weight), is only 31% of the weighted advantage Willo builds across the 6 criteria it leads.
Vendor profile
Arena Analytics
Arena scores job applicants, mainly for healthcare and senior-living employers, on how likely they are to show up and stay in a specific role at a specific location, reroutes and sources candidates it rates likely to be retained, and applies the same outcome models to employee flight risk and internal mobility.
Vendor profile
Willo
Willo is a browser-based asynchronous (one-way) video interview platform that lets employers collect recorded video, audio, multiple-choice and written candidate responses, then uses AI to transcribe, summarize, rank candidates against employer-defined "Blueprint" criteria, and flag scripted or AI-generated answers.
§ The record
Arena Analytics is filed under Screening AI, Willo under Video interview AI. They also share 1 secondary category: Assessment.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Arena Analytics | Willo |
|---|---|---|
| Price tier | Enterprise | Low |
| Headquarters | US | GB |
| Founded | 2015 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
12% weight · 31% of the movement so far
Human Oversight Design
Arena Analytics 38 · Willo 62
2.9 weighted points to Willo
15% weight · 49% of the movement so far
Data Governance Disclosure
Arena Analytics 42 · Willo 53
1.6 weighted points to Willo
20% weight · 66% of the movement so far
Article 11 Technical Documentation
Arena Analytics 30 · Willo 38
1.6 weighted points to Willo
8% weight · 80% of the movement so far
Customer Documentation
Arena Analytics 38 · Willo 54
1.3 weighted points to Willo
12% weight · 90% of the movement so far
Post-Market Monitoring
Arena Analytics 28 · Willo 36
1.0 weighted points to Willo
18% weight · 100% of the movement so far
Bias Audit Transparency
Arena Analytics 25 · Willo 30
0.9 weighted points to Willo
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -9.3 — the difference between the two totals before either is rounded. Shares are of 9.3 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 -9.3.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arena Analytics minus Willo.
| Category | Weight | Arena Analytics | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 38 | -8 | -1.6 |
| Bias Audit Transparency | 18% | 25 | 30 | -5 | -0.9 |
| FRIA Support | 15% | 25 | 25 | - | - |
| Data Governance Disclosure | 15% | 42 | 53 | -11 | -1.6 |
| Human Oversight Design | 12% | 38 | 62 | -24 | -2.9 |
| Post-Market Monitoring | 12% | 28 | 36 | -8 | -1.0 |
| Customer Documentation | 8% | 38 | 54 | -16 | -1.3 |
| Total | 100% | 32 (F) | 41 (F) | -9 | -9.3 |
§ 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 | Arena Analytics | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 1 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 6 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own 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% | 23 | 7 | Sources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Arena Analytics has 30 evidence rows across 7 of 7 criteria — 23 with a source URL, 7 documented absences; Willo has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Arena Analytics sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 44 evidence rows on file for these two vendors: 30 for Arena Analytics, across 3 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- Arena Analytics last reviewed
- September 25, 2026 · HireAIScore editorial team
- Willo 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