Afterglow vs Gloss
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Afterglow
Experience ebooks with a personalized ambiance. This reader intelligently creates unique themes from book cover art, offering a clean interface with customizable typography and layout for comfortable reading.
- Ebook reading interface
- Cover Tone themes
- Custom ambiance per book
- Typography controls
- Layout controls
- Light and dark modes
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A beautiful way to read ebooks. With Afterglow, give each book it's own ambience with Cover Tone themes, intelligently created from the book's cover art. Key features • Ebook reading with a clean, focused interface • Custom ambience for each book • Typography and layout controls for comfort and style • Light and dark reading options
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
Screenshots
Verdict
The clearest difference is in-app purchases: Afterglow at none against Gloss's 2. Gloss's advantage is iOS requirement (17.0 vs 26.4). On price, ads and device support there is nothing between them.
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. Afterglow asks for nothing beyond the download.
| Parameter | Afterglow | Gloss |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 days | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.4 | 17.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 13 MB |
| Age rating | 4+ | 17+ |
| Developer | Mohammad Qureshi | NYRAI LLC |
In-app purchases
Afterglow
No in-app purchases
Gloss
- Gloss Monthly$5.991 Month
- Gloss Yearly$49.991 Year









