Gloss vs Coral Reader
Price, ratings, monetisation and update history for both apps, side by side โ 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 โ in a book, a PDF, an article you saved, or your own notes โ 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 โ it reads like a thoughtful annotation, beside the text. Read anything: โข EPUB books (DRM-free) โ your files, Project Gutenberg, Standard Ebooks, author-direct. (Kindle and Apple Books DRM files aren't supported.) โข PDFs โ papers, manuals, anything you've saved. โข Articles โ paste a link and Gloss pulls the readable text to annotate. โข Your notes โ write or paste text and gloss it like a book. โข Select text โ Gloss, Go deeper, Define, or Ask โ the note streams into the margin (a side column on iPad, an anchored card on iPhone). โข Distraction-free reading โ three themes (light, sepia, dark), adjustable font, size, spacing, and margins. โข 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 โ 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
Coral Reader
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Your books. Your documents. Your reading space. Coral Reader brings EPUB, PDF, Markdown, TXT, HTML, and more files together in one calm, beautifully customizable reader for iPhone and iPad. Import files you own and turn them into a personal library built around the way you read. ONE READER, YOUR WAY Organize books with categories, search your library by title or author, and filter what you are reading or have finished. Choose Paged, Scroll, or Mixed reading, then turn pages by tap, swipe, or on-screen controls. Explore chapters, search inside books, follow your progress, and save bookmarks, highlights, and notes. MAKE EVERY PAGE YOURS Fine-tune fonts, text size, line and letter spacing, margins, alignment, brightness, reading direction, rotation, and page-turn behavior. Read with Light, Dark, Paper, or Auto themes, with an interface available in 17 languages and full right-to-left support. LISTEN AND TRANSLATE Use Read Aloud to listen across pages and chapters, adjust the voice and playback speed, and control narration from the mini-player as you move around the app. Select a passage to translate it on-device in supported languages, with easy language detection, swapping, highlighting, copying, and sharing of the original text. LEARN FROM WHAT YOU READ Save unfamiliar words to your personal vocabulary and build recall with adaptive practice. Review with multiple-choice questions, typed answers, contextual fill-in-the-blank exercises, and offline definitions. Set daily goals and reminders, build learning streaks, and follow your progress over time. BUILD A READING HABIT See your reading time, daily activity, finished books, and current and longest reading streaks. Celebrate completed books and return exactly where you left off. PRIVATE BY DESIGN Your imported books, notes, highlights, reading progress, and vocabulary stay on your device. Coral Reader does not upload or sell the contents of your library. CORAL PRO Unlock unlimited reading, bookmarks, highlights, notes, and the complete premium experience with monthly or yearly plans. Coral Reader is an independent reader for files you own and does not include a bookstore. Terms: https://amih90.github.io/coral-reader/legal/terms-of-use.html Privacy: https://amih90.github.io/coral-reader/legal/privacy-policy.html
Screenshots
Verdict
Gloss and Coral Reader are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Gloss sells 2 in-app purchases, starting at $5.99 per month and Coral Reader sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Gloss | Coral Reader |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 13 MB | 138 MB |
| Age rating | 17+ | 4+ |
| Developer | NYRAI LLC | Yanai Hollander |
In-app purchases
Gloss
- Gloss Monthly$5.991 Month
- Gloss Yearly$49.991 Year
Coral Reader
- Coral Reader7 Days trial$1.991 Month
- Coral Reader7 Days trial$17.991 Year









