Gloss vs Coral Reader
Price, ratings, monetisation and update history for both apps, side by side — 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 — 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: • 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. • Select text → Gloss, Go deeper, Define, or Ask — the note streams into the margin (a side column on iPad, an anchored card on iPhone). • Distraction-free reading — 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 — 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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Coral Reader — Read what you love. Learn as you go. Read beautifully, understand more, and keep learning anywhere. Bring your books and documents together in one comfortable reader, discover new words without leaving the page, and help your child explore English through stories in Coral Kids Club. ONE HOME FOR EVERY READ Import EPUB, PDF, Markdown, text, HTML, FB2, DOCX, and ODT. Organize your collection with categories, browse rich covers in grid or list views, and pick up where you left off. Supported documents are adapted into a reflowable reading experience. Complex layouts, particularly PDFs, may look different from the original. KIDS CLUB — A LITTLE STORY. A NEW WORLD OF ENGLISH. Make English feel like story time. Designed for ages 6–10 to explore with a parent or guardian, Coral Kids Club brings illustrated adventures, read-along narration, and vocabulary discovery together. • Follow the adventure. Short English stories, colorful illustrations, and narration help children get started. • Meet a word. Make it yours. Translate unfamiliar words on device, right in the story, and save new discoveries. • Keep the words, not just the story. Playful vocabulary practice helps young readers revisit what they learn. • Read together, at your child’s pace. Download available stories and return to favorite adventures. Kids Club stories and illustrations are AI-generated and human-reviewed for age appropriateness before publication. No child account is required. Children’s saved words and progress stay on the device, separate from adult learning data. THE WORD JOURNEY, INSIDE THE BOOK Turn reading moments into learning moments. • Long-press. Translate. Understand selected text with on-device translation after downloading a supported language model. • Every word keeps its sentence. Save vocabulary with its translation and reading context. • Quizzes built from your own words. Review through adaptive quizzes, typed recall, and contextual exercises. • Go deeper when you choose. Optional adult cloud AI provides richer language assistance, including definitions and examples. Available translation languages depend on your device. READ EXACTLY YOUR WAY Shape every page to suit your eyes. • Choose Scroll, Paged, or Mixed reading. • Adjust fonts, text size, zoom, margins, line height, and letter spacing. • Switch between light, sepia, and dark appearances. • Choose natural or justified text and lock screen orientation. • Read right-to-left scripts with direction-aware controls. • Jump between chapters, search inside books, and save bookmarks. • Highlight passages, keep notes, and open footnotes in place. OR JUST LISTEN Keep the story going with Read Aloud, available with Coral Pro. Listen using on-device voices, skip by sentence or paragraph, adjust playback speed, and set a sleep timer. Jump back to reading whenever you like. Voice and language availability depend on your device. YOUR BOOKS STAY YOURS No account needed to import your own books and start reading. Your imported files stay on your device, and local reading works offline. On-device translation uses downloaded language models. Optional adult cloud AI sends selected excerpts and limited context for processing—not entire books or chapters. Kids Club translation stays on device. MORE WITH CORAL PRO Unlock the full reading experience, Read Aloud, premium learning features, and unlimited bookmarks, highlights, and notes. Available plans, prices, and any eligible trial are shown before purchase. Subscriptions renew automatically unless canceled 24 hours before the period ends. Manage them in your Apple Account settings. Some features and content require paid access. Coral Reader supports books and documents you already own and includes a downloadable Kids Club story catalog. It is not an ebook marketplace. Make room for reading. Privacy Policy: https://coral-reader.com/legal/privacy-policy.html Terms of Use: https://coral-reader.com/legal/terms-of-use.html
Screenshots
Verdict
Gloss and Coral Reader are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · 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 | — | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 13 MB | 135 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









