/// READING · AI

Gloss

Highlight anything you read — and a margin note explains it in context.

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Why Gloss

Gloss turns anything you read into a conversation with its author. Highlight any passage — in a book, a PDF, an article you saved, or your own notes — and a margin note appears, explaining it more deeply in a voice informed by the author's style, or a thoughtful guide when there's no single author. Ask a follow-up and the note answers, staying right beside the text. The AI lives in the margins, never as a chat window — it reads like a thoughtful annotation, beside the text.

Read anything

Gloss is a single, calm home for everything you read:

EPUB books (DRM-free) — your files, Project Gutenberg, Standard Ebooks, author-direct. Kindle and Apple Books DRM files aren't supported.
PDFs — papers, manuals, anything you've saved.
Articles — paste a link and Gloss pulls the readable text to annotate.
Your notes — write or paste text and gloss it like a book.

What you can do

Select text and choose Gloss, Go deeper, Define, or Ask — the note streams into the margin, a side column on iPad and an anchored card on iPhone. Reading itself is distraction-free: three themes (light, sepia, dark) with adjustable font, size, spacing, and margins. Your highlights and notes are saved on your device and travel with each document.

Privacy and trust

Your files stay on your device. Only the highlighted passage and a small, bounded window of surrounding text are sent to generate a note — the document itself never leaves your device. Your account email and user id are collected only to sign you in. No tracking, no ads. Author "voices" are an AI interpretation, not the real author, and may be inaccurate — Gloss says so plainly in a one-time in-app note.

Gloss Unlimited

Reading is free forever. Your first 10 glosses are free; Gloss Unlimited unlocks unlimited margin notes for $5.99/month or $49.99/year. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage or cancel anytime in your Apple Account settings.

Get the app

Gloss is built for iPhone and iPad. Coming soon to the App Store.