Never Forget
What You Read.
Most people read an article or their study notes, feel smart for an hour, and forget it by morning. Coach J turns what you read into knowledge you actually own — generating recall cards from any webpage and quizzing you at the exact moment your brain is about to forget. No extra study sessions. No flashcard decks to build. Just read, and let Coach J do the rest.
Built to Make Knowledge Stick
Read It Once. Know It Forever.
The average person forgets 70% of what they read within 24 hours. Coach J intercepts that forgetting curve automatically — so the articles, research, and ideas you spend time on actually stay with you.
Know It, Don't Just Recognize It
Coach J prompts you to explain ideas in your own words — then grades your answer instantly against the source. You'll know exactly what you've truly mastered and what still needs work, without guessing.
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.
Reviews That Shrink as You Improve
The smarter you get on a topic, the less time you spend reviewing it. Coach J automatically stretches your review intervals as your mastery grows — so your daily review time gets shorter, not longer.
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.
Get Quizzed at the Right Moment
Coach J surfaces each concept exactly when your brain is on the verge of forgetting it. Type out what you remember — our AI grades you in seconds and adjusts your next review automatically.
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. The first time you sign in, a 7-day free trial of unlimited Premium starts automatically — no credit card required. After the trial, you stay on a free tier with basic daily limits for summaries and graded recalls.
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. Your account and learning progress data are securely stored in the cloud, enabling your knowledge base to stay in sync across sessions. 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.
Start Remembering Everything You Read
Install Coach J in seconds and turn your next article into permanent knowledge. Free on the Chrome Web Store — full premium features unlocked for 7 days, no card needed.