AI Study Coach · Chrome Extension

Study smarter.
Your notes stay yours.

Chat with your PDFs, auto-generate flashcards, and review with spaced repetition — all powered by Gemini Nano, entirely on your device.

Get Pro → View All Apps
No notes, documents, or chat history ever leave your browser
RAG Chat Over Your Documents
Paste text, upload PDFs or DOCX files, clip a tab — then ask anything. Gemini Nano finds the answer from your content locally. Scoped by project, subject, or individual document.
Auto-Generated Flashcards
Nano reads each document chunk and writes question-answer pairs. Lazy generation — cards only appear when you open the Flashcards tab. Deduplication prevents repetitive cards.
Spaced Repetition (SM-2)
The same algorithm behind Anki. Cards resurface at exactly the right time to maximise long-term retention with minimum review time. Your schedule adapts to how you rate each card.
Multiple-Choice Quiz
Automatically generated from your flashcards. Four options per question, wrong answers constructed from related content. Track your accuracy over time per subject.
PDF, DOCX & Tab Ingestion
Drop in any PDF, DOCX file, or clip the current tab. Scanned PDFs surface a clear error. Chunks are stored in IndexedDB — no browser storage limits for your library.
Projects & Subjects
Organise sources into nested Projects → Subjects. Chat can be scoped to one document, one subject, or your entire library. Namespace your knowledge the way you think about it.

Your notes.
Your device.
No exceptions.

PinoCoach is architected so that your documents, flashcards, chat history, and quiz results exist only in your browser's IndexedDB — a local database that no website or server can access.

When you use BYOK cloud LLM for richer answers, your query goes directly from your browser to your chosen provider. PencilCard is never in the middle.

  • ✓ Documents stored in IndexedDB — your browser only
  • ✓ Chat history never synced to any server
  • ✓ Gemini Nano runs on your GPU — zero network call
  • ✓ BYOK: your key, your provider, direct connection
  • ✓ No PencilCard account required for free tier
AI engine
Gemini Nano — on-device
Document storage
IndexedDB — local only
Data sent to PencilCard
Zero — none, ever

Simple pricing.

Core study features are free forever. Pro unlocks BYOK cloud LLM, batch flashcard generation, and cross-subject chat.

Free
$0/mo
No card required
  • ✓ Gemini Nano RAG chat
  • ✓ Auto-generated flashcards (Nano)
  • ✓ Spaced repetition (SM-2)
  • ✓ PDF + DOCX + tab ingestion
  • ✓ Projects & subjects
  • ✓ Multiple-choice quiz
Install Free
Pro
$5/mo
or $48/yr · cancel anytime
  • ✓ Everything in Free
  • ✦ Unlimited BYOK cloud LLM sessions
  • ✦ Batch flashcard generation (4× faster)
  • ✦ Cross-subject chat & search
  • ✦ CSV & Anki export
  • ✦ Source citation chips in chat
Get Pro →