Capernicus
Your offline study companion
Only for Mac
$17.99
Mac
Your offline study companion. Capernicus reads any PDF, EPUB, DOCX or text file and helps you actually learn — chat, exercises, flashcards, summaries — all on your Mac.
Capernicus is an offline study companion for your Mac.
Open a PDF, EPUB, DOCX or text file and Capernicus turns it into a personal tutor — one that knows your material, answers your questions, and helps you practice until the ideas stick. Everything runs locally on Apple Silicon. No accounts, no API keys, no cloud round-trips, no telemetry.
A teacher that has actually read your book
Ask anything about the material in plain language. Capernicus grounds every answer in the document you loaded, cites the relevant pages, and adapts its explanations to your level. Follow-up questions, analogies, examples — like office hours, on demand.
Practice, not just reading
Reading is half the work. The other half is testing yourself.
• Exercises — short-answer questions you can grade yourself or let the model grade for you, scoped to a chapter or the whole book.
• Exams — multiple-choice quizzes with optional instant correction and a running score that survives across sessions.
• Flashcards — front/back cards in a clean carousel, with one-tap "add the questions I got wrong" so the deck grows where you actually struggle.
• Summaries & schemas — chapter-level synopses and structured outlines, generated on demand.
• Study plans — paced day-by-day calendars across the material so you finish on schedule instead of in panic mode.
Progress that means something
A dashboard shows accuracy, attempt history, weekly streaks, and a Mastery Quest with ranks you climb by getting questions right. The numbers come from your actual practice — no vanity metrics.
Designed for focus
Editorial, paper-like interface in Light, Dark, Forest and Almanac themes. A built-in Pomodoro timer with custom durations and a soft chime. PDF and EPUB readers with adjustable zoom, page-aware chat, and chapter-scoped generation.
Local-first, by design
Capernicus runs a 3B-parameter Llama model bundled with the app — no download required, no internet ever needed. Want a stronger model? Add any compatible MLX model from the Models tab; the app handles the runtime. Your documents and your conversations stay on your Mac.
What you get
• Offline AI tutor for any PDF, EPUB, DOCX, TXT or Markdown file
• Exercises, exams, flashcards, summaries, schemas, study plans
• Progress dashboard with streak tracking and a mastery ladder
• Page-aware chat with chapter scoping
• Pomodoro timer with finish chime
• Four editorial themes including dark mode
• Bundled local model — no setup, no account
• Works on planes, in libraries, anywhere
Privacy
No analytics. No accounts. No network calls during normal use. Your documents are stored locally in a sandboxed folder under your Library. See capernicus.info/privacy for the full policy.
Questions? capernicus.info/support
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Patricia Palacian Martin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Patricia Palacian Martin
- Size
- 1.6 GB
- Category
- Education
- Compatibility
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- Mac
- Languages
- English and Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Capernicus
