Marginalis
Book Notes & Reading Journal
About
This app helps you capture and organize highlights from physical books. It allows you to save quotes, ideas, and summaries, and track your reading habits. Enjoy private AI-powered book summaries and share your favorite passages.
What's New in Marginalis
5.0
September 28, 2026
Synthesis — a new tab that lets you have a conversation with your reading. Select books or tags to focus the discussion, then ask anything: what themes keep coming back, what tensions you noticed, what remains unresolved. Your reading assistant answers from your own notes and highlights, nothing else, citing exactly where each idea came from. When the conversation surfaces something worth keeping, tap "Save these insights" and it gets captured as a saved insight — a distillation of your thinking that lives in your library. Synthesis requires Apple Intelligence on iPhone 15 Pro or later.
MoreSubscriptions & In-App Purchases
$4.99
Marginalis Unlock
Unlimited books & notes. No subscription, ever.
FAQ
What is Marginalis?
Marginalis is a reading journal designed for physical book readers. It helps you capture highlights, organize your library, and reflect on your reading experience.
How do I capture highlights in Marginalis?
You can capture highlights using your device's camera with Live Text, which automatically extracts text from pages. Alternatively, you can manually type in quotes, comments, page numbers, and tags.
What types of notes can I create in Marginalis?
Marginalis supports five types of notes: Quote, Idea, Question, Reaction, and Summary, allowing you to categorize your thoughts effectively.
Does Marginalis offer AI book summaries?
Yes, on supported devices, Marginalis can generate private AI book summaries powered by Apple Intelligence, processed entirely on your device.
How much does Marginalis cost?
Marginalis is free to download and use for up to 5 books with unlimited notes. A one-time unlock purchase of $2.99 provides unlimited books, Markdown export, and full reading stats.
Does Marginalis have ads?
No, Marginalis is built for privacy and does not contain any advertising SDKs or advertisements.
What devices does Marginalis support?
Marginalis is currently supported on iPhone and iPad devices, with seamless iCloud sync across them.
How often is Marginalis updated?
The latest version, 3.0, was released on May 20, 2026, indicating active development. Features like Collections and Kindle import are planned for future updates.
