Learn with CoiStudy Smarter,
Together.
Coi brings cards, projects, and collaboration into one interactive learning platform that adapts to your study needs.
“After using coi for my next test, I got an A.” - Anonymous Student
The Problem with Traditional Studying
Most students rely on outdated methods like rereading notes, using generic AI chatbots, or studying alone. While these approaches seem convenient, they come with significant drawbacks.
Inefficient Time Use
Hours spent passively rereading the same material without active recall or spaced repetition, leading to poor retention and wasted study time.
Lack of Collaboration
Studying in isolation misses out on peer discussions, shared insights, and the motivation that comes from learning with others.
Generic AI Responses
Using general-purpose AI like ChatGPT provides broad answers that don't adapt to your specific learning needs or course material.
Transform Your Study Experience
Coi combines adaptive AI tutoring, collaborative projects, and intelligent study tools to create a learning environment that actually works.
Active Learning Techniques
Spaced repetition, active recall, and adaptive questioning ensure you retain information efficiently.
Collaborative Study Groups
Share projects, discuss concepts, and learn from peers in real-time collaborative environments.
Personalized AI Assistance
An AI tutor that understands your course material and adapts explanations to your learning style.
Trusted by Students Worldwide
Perry Yu
High School Student
“Before coi, I didn't know how to study. Using ChatGPT and rereading my notes became redundant. I got introduced to Coi Learn right before my APUSH retake, which I had previously scored poorly on. After using coi's interactive features, I was able to drastically bring up my score, while also having time to do other things.”
Anonymous Student
High School Student
“Coi provides me and my peers an AI service that allows us to study efficiently. I've tried other AI platforms, but with Coi, the notecards and practice quizzes match my notes and are relevant to what we are learning, so I can easily comprehend the knowledge my teacher is trying to teach us. I got a C+ on my first biology test; however, after using coi for my next one, I got an A.”
Lev Smolsky
Creator & Developer
“Building Coi has been about creating the study tools I wish I had during my own education. The combination of AI assistance, collaborative features, and structured learning paths addresses the real pain points students face.”
Everything You Need to Study Smarter
Coi combines cutting-edge AI with proven learning techniques to create the ultimate study platform.
Intelligent Study Tools
Transform your learning with smart, automated study aids that adapt to your needs.
- Auto-generated flashcards with relevant information and resources
- Organized note hierarchies curated as you learn
- Custom quizzes that test your knowledge effectively
AI-Powered Learning
Get personalized assistance from an adaptive AI tutor that understands your learning style.
- Conversational AI that explains concepts in your preferred way
- Adaptive questioning based on your progress
- Instant answers to complex questions about your material
Collaborative Study Groups
Learn together with peers through shared projects and group discussions.
- Create and share study projects with classmates
- Real-time collaboration on notes and materials
- Peer discussions and knowledge sharing
Complete Course Management
Access pre-built courses and organize your entire learning journey.
- Explore comprehensive courses with full lesson plans
- Track progress across multiple subjects
- Organized learning paths for structured study
Why I Built Coi
As someone who's always been passionate about education, I noticed a gap in how students learn. Traditional methods often feel disconnected from real understanding, and generic AI tools don't adapt to individual learning styles or specific course material.
During my own studies, I struggled with inefficient study techniques and wished for a platform that could combine the power of AI with collaborative learning. That's when I started building Coi – a tool that would make studying more effective, engaging, and social.
Today, Coi helps hundreds of students worldwide transform their learning experience. It's not just about memorizing facts; it's about truly understanding concepts, collaborating with peers, and building knowledge that lasts.
Lev Smolsky
Creator & Developer
Frequently Asked Questions
Everything you need to know about getting started with Coi.
Yes! Coi is currently 100% free with no paid plans. You get access to all features including project creation, advanced AI tutoring, flashcards, note organization, and collaborative study groups. Paid plans will be added soon, so take advantage of the free access while you can!
Our adaptive AI tutor learns from your course materials and study patterns to provide personalized explanations. It can answer questions about your specific content, generate practice questions, and adapt its teaching style to how you learn best.
Yes! Coi works for any subject from high school to university level. Whether you're studying history, biology, mathematics, or any other field, our AI adapts to your specific content and learning needs.
You can create or join projects where members can share insights, notes, and resources in real-time. Everyone can contribute to group learning, review each other's work, and advance together through shared AI tutoring sessions.
Unlike generic AI chatbots or basic flashcard apps, Coi combines adaptive AI tutoring, collaborative learning, and comprehensive study tools in one platform. It learns from your materials and adapts to your learning style for truly personalized education.
Still have questions?
Contact our support team