SOURCED COMPARISON
RedPen vs Mercer | Mettl
A global enterprise assessment and hiring platform.
Create a workspace
50 students free · 15 days · no card
Reasons to pick them
Where Mercer | Mettl is stronger
Global scale we cannot match. They publish 6,000+ customers, 25M+ assessments a year, 100+ countries, 20+ languages, and live human proctoring with thousands of proctors deployable in a day. If you are hiring across twenty countries, that is not us.
Checked on 20 August 2026
Where we are different
| RedPen | Mercer | Mettl | |
|---|---|---|
| Price published on the website | Yes — a published per-student-per-year price, unlimited exams |
Not published on their site
A consultation request; “Get Personalized Pricing”.
|
| How you are billed | Per student per year, from a prepaid wallet. No subscription. |
Packages, pay as you go
“Design assessment packages that work for you and pay as you go”
|
| Proctoring included at the base price | Yes — all three modes, same price |
Not published on their site
AI-based, live human and record-and-review proctoring are all described; packaging is not stated.
|
| White-label / own branding | Yes | Yes — logo, background and colour scheme |
| Public API | Yes — read and write, plus webhooks |
Yes — REST APIs
“Robust API support… Our REST APIs”
|
| Face checks run in the student’s browser | Yes — analysed in the browser | Not published on their site |
| Public credential verification page | Yes — /verify, no login | Not published on their site |
| Free way to start | Yes — create a workspace yourself, 50 students free for 15 days, no card | Trial offered; terms not stated |
| Question types published | 9, listed | Not published on their site |
Checked against each company’s own website on the date shown. Where a cell says “not published”, it means we could not find the claim on their site — not that the feature does not exist.