PF
PhraseFrequency
An AI-powered phrase and language analytics product currently in live testing. Built to support educators, researchers, and language-focused learning environments.
Founded by Ross Kim • AI-driven EdTech • Human-centered analytics
Quantify knowledge. Design learning systems that actually matter.
Ceroray is an AI-driven EdTech and analytics company based in South Korea, focused on knowledge management, learning ROI, intelligent dashboards, and human-centered digital systems. We build tools that help organizations understand how knowledge moves, where value is created, and how learning can be measured more meaningfully.
AI-driven EdTech
Purpose-built for modern learning, knowledge, and organizational insight.
Knowledge analytics
Measure engagement, intellectual capital, and learning value with more clarity.
Human-centered design
Designed at the intersection of analytics, UX, education, and strategy.
INAVIS Concept Snapshot
Knowledge Signal Strength
Current Focus
INAVIS dashboards
Learning ROI
NLP insight
Knowledge flow
What Ceroray Helps You Do
Measure knowledge impact
Surface hidden patterns
Improve learning outcomes
Support strategic planning
Products in Development
Ceroray is building AI-driven products for education, analytics, and knowledge systems.
A4
A4 Résumés
A4resumes.com is an intuitive automatic supervised CV builder designed to help professionals create clean, structured, and job-ready resumes in minutes.
LO
LightsOut
LightsOut is an SNS app that helps you discover which of your Facebook friends are nearby and active, making spontaneous meetups easier without interrupting anyone.
Solutions built for modern knowledge organizations
From intelligent dashboards to AI-supported learning systems, Ceroray turns fragmented information into strategic clarity for schools, training environments, and knowledge-centered organizations.
Learning Analytics
Track engagement, performance, and educational value with dashboards designed to make complex signals usable.
Knowledge Intelligence
Use AI, NLP, and analytics to surface patterns in language, usage, behavior, and organizational learning.
Human-Centered Product Design
Build tailored digital systems that combine strategy, UX, data science, and educational purpose.
Why Ceroray
Ceroray reflects a multidisciplinary approach shaped by design, UX, software development, analytics, education, and strategic leadership. That mix makes the work both analytical and deeply human.
Data-informed strategy
Connect evidence to action instead of collecting data that sits unused.
Purpose-built experiences
Design digital systems around real learning, training, and organizational needs.
Scalable insight
Build tools and workflows that grow with your institution, company, or research agenda.
Designed for measurable impact
Ceroray focuses on outcomes that matter: better learning, stronger knowledge transfer, clearer strategic insight, and more confident decision-making grounded in measurable evidence.
Educational institutions
Support faculty, students, and administrators with clearer signals about learning performance, engagement, and knowledge development.
Training organizations
Understand where programs create value, where learning sticks, and where improvement is needed.
Innovation teams
Turn scattered information into a more coherent knowledge ecosystem through intelligent dashboards and analytic workflows.
Let’s build what comes next.
Ceroray is preparing its next phase of AI-driven learning, analytics, and knowledge innovation. If you are exploring EdTech, intelligent dashboards, knowledge measurement, or digital transformation, let’s connect.