Gloss vs Leruna
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Gloss
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Gloss turns anything you read into a conversation with its author. Highlight any passage ā in a book, a PDF, an article you saved, or your own notes ā 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 ā it reads like a thoughtful annotation, beside the text. Read anything: ⢠EPUB books (DRM-free) ā your files, Project Gutenberg, Standard Ebooks, author-direct. (Kindle and Apple Books DRM files aren't supported.) ⢠PDFs ā papers, manuals, anything you've saved. ⢠Articles ā paste a link and Gloss pulls the readable text to annotate. ⢠Your notes ā write or paste text and gloss it like a book. ⢠Select text ā Gloss, Go deeper, Define, or Ask ā the note streams into the margin (a side column on iPad, an anchored card on iPhone). ⢠Distraction-free reading ā three themes (light, sepia, dark), adjustable font, size, spacing, and margins. ⢠Your highlights and notes are saved on your device and travel with each document. Reading is free forever. Your first 10 glosses are free; Gloss Unlimited ($5.99/month or $49.99/year) unlocks unlimited notes. Your files stay on your device ā only the highlighted passage and a small amount of surrounding text are sent to generate a note. Author "voices" are an AI interpretation, not the real author, and may be inaccurate. Gloss Unlimited is an auto-renewable subscription: $5.99/month or $49.99/year. Payment is charged to your Apple Account at purchase confirmation. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://gloss.nyrai.ai/terms.html Privacy Policy: https://gloss.nyrai.ai/privacy.html
Leruna
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Read EPUB, PDF, and text books with an AI reading companion that understands what is on the page and helps you explore the rest of the book. Leruna is an AI book reader built for people who want to stay immersed while getting clear answers at the moment curiosity strikes. Import your own book or choose a free public-domain classic, then read in a calm, continuous interface designed around the text. ASK YOUR BOOK ⢠Ask questions aloud and hear concise, conversational answers. ⢠Leruna considers the passage on screen and any text you select. ⢠Ask about a character, event, theme, idea, or unfamiliar detail. ⢠When necessary, the assistant can research other parts of the book or search for broader information. UNDERSTAND IN CONTEXT ⢠Tap a word or select an expression for a contextual meaning. ⢠Discover cultural, literary, and historical references connected to passages. ⢠Expand references without leaving the reference list, or jump back to their place in the book. NAVIGATE LONG BOOKS ⢠Browse detected chapters and sections in the Reader Map. ⢠Find text across the full book and move between every result. ⢠Resume from your saved reading position. ⢠Scroll continuously with progressive loading, even in long books. MAKE READING VISUAL ⢠Generate an image of a selected character, place, object, or scene. ⢠Ask the assistant for a specific image while discussing the book. ⢠Save generated images to Photos or share them. ⢠Create an optional book-inspired reading backdrop for light or dark mode. YOUR READING SPACE ⢠Import EPUB, PDF, Markdown, HTML, and plain-text files. ⢠Explore free public-domain books from Project Gutenberg. ⢠Choose between five text sizes, light or dark mode, and assistant voices. ⢠Read and ask questions in the language of your book or conversation. New eligible accounts receive a 30-day Reader trial with a one-time usage pool. No subscription or payment method is required to begin. Optional Reader, Study, and Scholar subscriptions are available with monthly or annual billing and larger allowances for book processing, AI requests, conversational answer audio, and image generation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel a subscription from your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://energized-puffin-45.convex.site/legal/privacy
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Verdict
Gloss and Leruna are too close to call on the numbers: across 5 compared parameters ā price, ads, in-app purchases and device support among them ā neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Gloss sells 2 in-app purchases, starting at $5.99 per month and Leruna sells 6 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
In-app purchases
Gloss
- Gloss Monthly$5.991 Month
- Gloss Yearly$49.991 Year
Leruna
- Reader Monthly$5.991 Month
- Study Monthly$11.991 Month
- Scholar Monthly$23.991 Month
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- Reader Annual$59.991 Year
- Study Annual$119.991 Year
- Scholar Annual$239.991 Year









