§ The result
HackerRank leads Willo by 14 points.
HackerRank sits 14 points above Willo under rubric v1.0 — 55 against 41 — with HackerRank filed under Assessment and Willo under Video interview. HackerRank leads 6 of the 7 criteria, including Bias Audit Transparency, while Willo leads 1, including Human Oversight Design. Bias Audit Transparency is both the widest raw gap and the heaviest weighted swing — HackerRank 68, Willo 30 — and at an 18% weight it carries 46% of the weighted advantage HackerRank holds across the 6 criteria on that side of the table.
Vendor profile
HackerRank
HackerRank is a technical skills assessment platform for developer hiring that uses coding tests, interviews, and AI-based features (question generation, ML plagiarism/AI-code detection, and image-analysis proctoring) to evaluate candidates.
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
HackerRank 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 | HackerRank | Willo |
|---|---|---|
| Price tier | Enterprise | Low |
| Headquarters | US | GB |
| Founded | 2009 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 46% of the movement so far
Bias Audit Transparency
HackerRank 68 · Willo 30
6.8 weighted points to HackerRank
20% weight · 75% of the movement so far
Article 11 Technical Documentation
HackerRank 60 · Willo 38
4.4 weighted points to HackerRank
15% weight · 85% of the movement so far
FRIA Support
HackerRank 35 · Willo 25
1.5 weighted points to HackerRank
12% weight · 92% of the movement so far
Post-Market Monitoring
HackerRank 45 · Willo 36
1.1 weighted points to HackerRank
8% weight · 96% of the movement so far
Customer Documentation
HackerRank 62 · Willo 54
0.6 weighted points to HackerRank
15% weight · 98% of the movement so far
Data Governance Disclosure
HackerRank 55 · Willo 53
0.3 weighted points to HackerRank
12% weight · 100% of the movement so far
Human Oversight Design
HackerRank 60 · Willo 62
0.2 weighted points to Willo
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +14.5 — the difference between the two totals before either is rounded. Shares are of 15.0 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +14 beside that +14.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is HackerRank minus Willo.
| Category | Weight | HackerRank | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 60 | 38 | +22 | +4.4 |
| Bias Audit Transparency | 18% | 68 | 30 | +38 | +6.8 |
| FRIA Support | 15% | 35 | 25 | +10 | +1.5 |
| Data Governance Disclosure | 15% | 55 | 53 | +2 | +0.3 |
| Human Oversight Design | 12% | 60 | 62 | -2 | -0.2 |
| Post-Market Monitoring | 12% | 45 | 36 | +9 | +1.1 |
| Customer Documentation | 8% | 62 | 54 | +8 | +0.6 |
| Total | 100% | 55 (F) | 41 (F) | +14 | +14.5 |
§ 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 | HackerRank | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 3 | 0 | Audit reportSources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 1 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 3 | 0 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 2 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 14 | 4 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
HackerRank has 18 evidence rows across 7 of 7 criteria — 14 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 HackerRank sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 32 evidence rows on file for these two vendors: 18 for HackerRank, across 3 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- HackerRank last reviewed
- June 7, 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