§ The result
2 points separate Willo and DevSkiller.
Willo (Video interview) edges DevSkiller (Assessment) by 2 points under rubric v1.0, 41 to 39. Willo leads 4 of the 7 criteria, including Bias Audit Transparency, while DevSkiller leads 2, including Post-Market Monitoring, and 1 is level. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — DevSkiller 22, Willo 30 — and at an 18% weight it carries 48% of the weighted advantage Willo holds across the 4 criteria on that side of the table.
Vendor profile
DevSkiller
DevSkiller (now branded SkillPanel) provides technical skills assessment and coding tests that automatically score developer candidates on real-world work-sample tasks using hidden verification unit tests and static code analysis.
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
DevSkiller is filed under Assessment AI, Willo under Video interview AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | DevSkiller | Willo |
|---|---|---|
| Price tier | Mid | Low |
| Headquarters | PL | GB |
| Founded | 2014 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 38% of the movement so far
Bias Audit Transparency
DevSkiller 22 · Willo 30
1.4 weighted points to Willo
12% weight · 60% of the movement so far
Human Oversight Design
DevSkiller 55 · Willo 62
0.8 weighted points to Willo
20% weight · 75% of the movement so far
Article 11 Technical Documentation
DevSkiller 35 · Willo 38
0.6 weighted points to Willo
12% weight · 88% of the movement so far
Post-Market Monitoring
DevSkiller 40 · Willo 36
0.5 weighted points to DevSkiller
8% weight · 96% of the movement so far
Customer Documentation
DevSkiller 58 · Willo 54
0.3 weighted points to DevSkiller
15% weight · 100% of the movement so far
Data Governance Disclosure
DevSkiller 52 · Willo 53
0.1 weighted points to Willo
Weighted delta is the raw difference times the criterion weight, so the 6 figures above sum to -2.2 — the difference between the two totals before either is rounded. Shares are of 3.8 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -2 beside that -2.2.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is DevSkiller minus Willo.
| Category | Weight | DevSkiller | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 35 | 38 | -3 | -0.6 |
| Bias Audit Transparency | 18% | 22 | 30 | -8 | -1.4 |
| FRIA Support | 15% | 25 | 25 | - | - |
| Data Governance Disclosure | 15% | 52 | 53 | -1 | -0.1 |
| Human Oversight Design | 12% | 55 | 62 | -7 | -0.8 |
| Post-Market Monitoring | 12% | 40 | 36 | +4 | +0.5 |
| Customer Documentation | 8% | 58 | 54 | +4 | +0.3 |
| Total | 100% | 39 (F) | 41 (F) | -2 | -2.2 |
§ 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 | DevSkiller | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 1 | 1 | Sources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 0 | 1 | — | 1 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on a separate domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 3 | 0 | Audit reportSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 0 | Sources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 11 | 4 | Audit reportSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
DevSkiller has 15 evidence rows across 7 of 7 criteria — 11 with a source URL, 4 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 DevSkiller sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 29 evidence rows on file for these two vendors: 15 for DevSkiller, across 2 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- DevSkiller last reviewed
- July 17, 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