§ The result
3 points separate Emmersion and Willo.
Emmersion holds a 3-point edge over Willo under rubric v1.0, 44 to 41, across the Assessment and Video interview cohorts. The 7 criteria split 4 to 3 in favour of Emmersion: Emmersion is ahead on Article 11 Technical Documentation and Willo on Human Oversight Design. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — Emmersion 57, Willo 38 — and at a 20% weight it carries 72% of the weighted advantage Emmersion holds across the 4 criteria on that side of the table.
Vendor profile
Emmersion
Emmersion, Rosetta Stone's assessment division within IXL Learning, sells AI-scored adaptive TrueNorth speaking and writing tests and WebCAPE reading and grammar exams. They rate language proficiency on a 0-10 scale mapped to CEFR and ACTFL and are used for pre-employment screening, checking employees' language skills and placing students.
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
Emmersion 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 | Emmersion | Willo |
|---|---|---|
| Price tier | Mid | Low |
| Headquarters | US | GB |
| Founded | 2015 | 2018 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 53% of the movement so far
Article 11 Technical Documentation
Emmersion 57 · Willo 38
3.8 weighted points to Emmersion
12% weight · 68% of the movement so far
Human Oversight Design
Emmersion 53 · Willo 62
1.1 weighted points to Willo
15% weight · 79% of the movement so far
FRIA Support
Emmersion 30 · Willo 25
0.8 weighted points to Emmersion
8% weight · 85% of the movement so far
Customer Documentation
Emmersion 60 · Willo 54
0.5 weighted points to Emmersion
15% weight · 92% of the movement so far
Data Governance Disclosure
Emmersion 50 · Willo 53
0.4 weighted points to Willo
18% weight · 97% of the movement so far
Bias Audit Transparency
Emmersion 28 · Willo 30
0.4 weighted points to Willo
12% weight · 100% of the movement so far
Post-Market Monitoring
Emmersion 38 · Willo 36
0.2 weighted points to Emmersion
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +3.4 — the difference between the two totals before either is rounded. Shares are of 7.2 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +3 beside that +3.4.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Emmersion minus Willo.
| Category | Weight | Emmersion | Willo | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 57 | 38 | +19 | +3.8 |
| Bias Audit Transparency | 18% | 28 | 30 | -2 | -0.4 |
| FRIA Support | 15% | 30 | 25 | +5 | +0.8 |
| Data Governance Disclosure | 15% | 50 | 53 | -3 | -0.4 |
| Human Oversight Design | 12% | 53 | 62 | -9 | -1.1 |
| Post-Market Monitoring | 12% | 38 | 36 | +2 | +0.2 |
| Customer Documentation | 8% | 60 | 54 | +6 | +0.5 |
| Total | 100% | 44 (F) | 41 (F) | +3 | +3.4 |
§ 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 | Emmersion | Willo | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 4 | 1 | Sources on the vendor's own domainSources on a separate domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 7 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | — |
| FRIA Support | 15% | 3 | 1 | Sources on the vendor's own domainSources on a separate domain | 0 | 1 | — |
| Data Governance Disclosure | 15% | 6 | 0 | Sources on the vendor's own domainSources on a separate domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 4 | 1 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 5 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 35 | 5 | Sources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Emmersion has 40 evidence rows across 7 of 7 criteria — 35 with a source URL, 5 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 Emmersion sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 54 evidence rows on file for these two vendors: 40 for Emmersion, across 5 distinct source domains, and 14 for Willo, across 1 distinct source domain.
- Rubric
- v1.0
- Emmersion 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