Never Forget
What You Read.
Coach J is a personal AI learning companion. Go to any informational webpage, generate concepts instantly with summary bullet points and informational key terms with smart highlighting. Conquer the forgetting curve using active recall graded in real-time by AI.
Engineered for Lifelong Retention
The Science of Spaced Repetition, Automated.
Most web content you read disappears from your memory in days. Coach J helps you extract, review, and lock in valuable knowledge permanently.
Active Recall AI Grading
Instead of passive reading, Coach J asks you to explain concepts in your own words. Our AI compares your response to the original article, grading you on completeness and highlighting what you missed.
Logarithmic Decay Modeling
Track your estimated memory decay automatically. Coach J sorts every concept into retention health buckets, Needs Review, Fading Soon, or Strong, so you always know exactly what to review at the optimal threshold.
Supercharged SM-2 Engine
Utilize the industry-standard SuperMemo SM-2 algorithm. Your recall intervals dynamically expand based on how well you know a topic, saving you time by ignoring concepts you have already mastered.
All-in-One Mastery Dashboard
Monitor your cognitive growth with comprehensive learning analytics. Track your overall retention rate, view conceptual mastery gains, check average ease factors, and visualize your daily review habits in one central command center.
XP & Gamified Milestones
Learning is a habit. Earn Experience Points (XP) for completing reviews and maintaining daily streaks. Achieve mastery awards and level up as your active memory bank expands.
Daily Review Streaks
Build a bulletproof learning habit. Coach J keeps track of your daily review streaks, sending timely notifications to help you lock in consistency and prevent your hard-earned knowledge from slipping away.
Workflow
How Coach J Works
Deploying spaced repetition in four simple, automated steps.
Read and Start
Browse any informational site such as an educational page or article. Then, in order to start, click the action toolbar icon and hit "Start Learning".
Generate Concepts
Our LLM processes the content to extract core conceptual statements and facts, structuring them into review cards automatically.
Attempt Recall
When a concept is due on your forgetting curve, explain it. Our AI validates the semantic logic of your response.
Adapt Spacing
Your performance grade scales the Ease Factor. Mastered items get longer intervals, while failed recalls are surfaced immediately.
Questions & Answers
Frequently Asked Questions
Everything you need to know about Coach J before you install.
When you click 'Start Learning' on a page, Coach J uses AI to analyze the article text. It identifies the core ideas, summarizes key facts, and flags important terms with smart highlighting. These are automatically transformed into active recall cards.
Coach J is completely free to install and features a free tier with basic daily active recall limits. You can activate a 7-day free trial of our unlimited premium tier directly inside the extension at any time (no credit card required) to test all advanced features.
Coach J is a standard Chromium extension. It works flawlessly on Google Chrome, Brave, Microsoft Edge, Opera, Vivaldi, and any other Chromium-based web browser.
Privacy is our core priority. All of your learning cards and progress data are stored locally in your browser. Coach J never tracks the websites you visit, logs your browsing history, or reads any webpage text unless you explicitly click 'Start Learning'. We only collect anonymous usage analytics (such as button clicks) to help improve the product, and we never sell your data or use your reading content to train AI models.
Upgrade Your Reading Retention Today
Start mastering web articles, documents, and research papers with your personal learning coach. Free to install on the Chrome Web Store — try premium features with a 7-day trial.