Quality at Scale
Assess subjective work fairly
and fast at any scale
From 30 students to 30,000 candidates — now including instant mobile capture with our new Companion App.
Schools and School Groups
Assess Creativity & Oracy
Move beyond "tick-box" rubrics. Reliably assess holistic skills across your entire school network.
Explore Education →High-Volume Recruitment
Stop Screening, Start Ranking
CVs are broken by AI. Use ACJ to rank thousands of candidates based on authentic work samples.
Explore Hiring →Global Awarding
Defensible Standards
Solve the "Examiner Crunch." Secure grade boundaries and prevent inflation on high-stakes exams.
Explore Awarding →Higher Education
Admissions & Peer Learning
A validated way to assess applicant potential at scale, and a tool to empower student peer review.
Explore Higher Ed →Training & Compliance
Validate Internal Assessment
Standardise judgement across sites. Evidence your decisions against audit and external scrutiny.
Explore Training →New Feature
The RM Compare Companion App
Bridge the gap between the physical and digital. Capture work, portfolios, and performances directly from your mobile device and sync them instantly to your assessment session.
- Mobile-First: Designed for speed in the classroom or office.
- Instant Sync: No more cables or manual uploads. Learn More
Modern Infrastructure
Built for the agile Enterprise
Zero-Friction Scaling
Launch a new assessment cycle in minutes. Our multi-tenant architecture handles demand spikes instantly.
Config over Customisation
Toggle features, adjust workflows, and manage permissions via our admin console. You own your roadmap.
Secure & Compliant
Enterprise-grade security, ISO 27001 certified and GDPR compliant. Millions of judgements processed annually.
The Science of Comparative Judgement
Why "Better/Worse" beats "7 out of 10"
Humans are notoriously bad at absolute judgement. We are highly accurate at Relative Judgement.
1
Capture & Upload
Use the new Companion App to capture physical work instantly, or upload any file type (portfolios, essays, video).
2
Compare Pairs
Judges see two items side-by-side and simply decide: "Which is better?"
3
Get Validated Data
Our algorithm generates a highly reliable rank order (0.9+ reliability) and actionable data.
Trusted by world-leading organizations
See the Platform in Action
Assessment in the Age of AI
RM Compare 1 minute explainer
Brilliantly simple. Awesome power.
Backed by science and deep research
Professor Scott Bartholomew explains why ACJ is so powerful.
RM Compare is developing fast
Stay up to date with the very latest information
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New - Introducing the new RM Compare Modular Ecoystem
For years, RM Compare has helped teachers, exam boards, universities and recruiters turn thousands of “which is better?” decisions into fair, reliable rankings of complex work. What began as a powerful way to compare pieces of work has now grown into something bigger: a complete ecosystem for creating, managing, and using gold‑standard judgements at scale. Today we’re introducing RM Compare | Live, Studio, Hub – three modules that work together as a continuous flywheel.
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Newsletter March 2026
For this edition we have produced a couple of series focusing on two critical considerations in the world of assessment, and education more generally. The 'AI World' is moving fast and finding time for necessary thinking and consideration has never been more important.
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Curriculum and the Future of Assessment - The Architecture of Curriculum Alignment (Part 5)
Over this series we’ve built an argument step by step: Different curriculum models (content, product, process) need different assessment logics. Curriculum for Wales (CfW), as illuminated by Camau i’r Dyfodol, is best understood as a process curriculum. Adaptive Comparative Judgement (ACJ), via RM Compare, is an agnostic engine: it can serve any of these models depending on how it’s configured.