Comparison

Gloss vs deReader

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Gloss

Features
Read full description

Gloss turns anything you read into a conversation with its author. Highlight any passage β€” in a book, a PDF, an article you saved, or your own notes β€” 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 β€” it reads like a thoughtful annotation, beside the text. Read anything: β€’ EPUB books (DRM-free) β€” your files, Project Gutenberg, Standard Ebooks, author-direct. (Kindle and Apple Books DRM files aren't supported.) β€’ PDFs β€” papers, manuals, anything you've saved. β€’ Articles β€” paste a link and Gloss pulls the readable text to annotate. β€’ Your notes β€” write or paste text and gloss it like a book. β€’ Select text β†’ Gloss, Go deeper, Define, or Ask β€” the note streams into the margin (a side column on iPad, an anchored card on iPhone). β€’ Distraction-free reading β€” three themes (light, sepia, dark), adjustable font, size, spacing, and margins. β€’ 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 β€” 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

About

deReader

Features
Read full description

deReader is a private, local-first book reader built for people who want a calm place to read, collect, and return to their books. It starts with EPUB support, but deReader is not meant to be just an EPUB app. The long-term direction is a full reading engine: one that can grow across book formats, better typography, richer layouts, durable notes, reliable progress, and a library experience that respects the reader. β€’ Private by design Your reading life is personal. deReader is built around a local-first reading flow, so your books, progress, bookmarks, highlights, notes, collections, and reading preferences stay on your device in the current version. β€’ No account required You can start reading without creating a deReader account. The local reading experience is simple, direct, and under your control. β€’ Sources for discovering books deReader includes a Sources area so you can find books from reader-friendly catalogs instead of searching through scattered files. Browse public-domain and open catalogs such as Project Gutenberg and Standard Ebooks, view available book details, then add supported editions to your library. Sources help deReader keep useful metadata connected to each book, including title, author, language, cover, description, source name, and available formats when provided. β€’ Reading features deReader includes the core tools readers expect: β€’ Import supported book files from Files or other apps β€’ Download supported books from built-in Sources β€’ Save reading progress automatically β€’ Continue reading from your last position β€’ Mark books as unread, reading, or finished β€’ Add bookmarks to important locations β€’ Highlight passages you want to keep β€’ Write and edit notes for selected text β€’ Review highlights and bookmarks from reader panels β€’ View book details, covers, metadata, and source information β€’ Adjust font, size, spacing, margins, alignment, background, and text color β€’ Read in a muted, focused interface designed to stay out of the way β€’ A real reading engine Good reading is more than opening a file. A reader needs structure, layout, typography, progress, navigation, selection, highlights, bookmarks, and notes to work together reliably. deReader is built around a native reading engine that parses book content, prepares structure, computes page layouts, and renders reading pages directly in the app. The goal is to make reading feel stable and trustworthy: β€’ Pages should be readable and predictable β€’ Progress should remain meaningful β€’ Bookmarks should return to the right place β€’ Highlights should stay attached to the intended text β€’ Notes should remain durable across reading sessions β€’ Appearance changes should preserve the reader’s sense of place β€’ The interface should support long reading, not distract from it β€’ Built to grow deReader begins with EPUB because it is one of the most important open book formats, but the engine is being designed with a broader future in mind. Future growth may include stronger support for real-world books, richer formatting, complex layouts, additional reading modes, improved source catalogs, stronger library organization, and broader format support. β€’ Why deReader exists Digital reading should feel quiet, private, and durable. Your library should not feel temporary. Your notes should not feel fragile. Your progress should not disappear. deReader is made for people who care about reading as a long-term habit: classics, essays, research, personal collections, public-domain literature, study reading, and books that deserve attention. deReader will continue to improve carefully, with a focus on privacy, reading quality, source support, engine reliability, and a library that stays in the reader’s hands. Privacy Policy: https://devitan-docs.gitbook.io/devitans-apps/x.-privacy-policy-for-devitans-apps Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Gloss4 screens
deReader4 screens

Verdict

The call

The clearest difference is in-app purchases: deReader at none against Gloss's 2. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Gloss sells 2 in-app purchases, starting at $5.99 per month. deReader asks for nothing beyond the download.

Scorecard1 real difference Β· 5 level
Gloss versus deReader: the parameters behind the verdict, then further details
ParameterGlossdeReader
PriceFreeFree
Update frequencyβ€”Every 3 weeks
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad β€” betteriPhone
Requires iOS17.017.0
Further details β€” not scored
Size13 MB83 MB
Age rating17+12+
DeveloperNYRAI LLCTan Vi Minh

In-app purchases

2 purchases

Gloss

Subscriptions2
  • Gloss Monthly$5.991 Month
  • Gloss Yearly$49.991 Year
None

deReader

No in-app purchases

Questions

Is Gloss free?
Gloss is free to download, with in-app purchases available.
Is deReader free?
deReader is free to download, with no in-app purchases.
Do Gloss or deReader have ads?
Neither Gloss nor deReader shows ads.

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