Pub Viewer vs Instant Reader
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Pub Viewer
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Pub Viewer is a mobile application with a modern UI/UX that provides a text viewer feature. It allows users to conveniently enjoy novels and text-based content, and includes a Text-to-Speech (TTS) feature to listen to the content audibly.
Instant Reader
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This app allows users to work with selected text from PDF documents and web pages using customizable actions and parameters. Key Features & Use Cases Select any word or phrase in English or other languages and request a translation (e.g., Japanese, Chinese, etc.) Select a sentence and request a grammar breakdown or explanation Select a word to open its Wikipedia page for additional context Search images related to selected text using Google Image results Users can define and customize their own parameters to extend functionality and create personalized workflows. AI Integration The app supports connecting to external AI services to generate responses based on selected text. Supported Content: - PDF documents - TXT files - Web pages - Notes More content types and features are planned in future updates. Terms of use: https://app.notion.com/p/Instant-Reader-Terms-of-Use-35315d340c0580ef8459d581696c3e5e Policy: https://app.notion.com/p/Instant-Reader-Policy-34015d340c05800ea627e951926c33cd
Screenshots
Verdict
The clearest difference is in-app purchases: Pub Viewer at none against Instant Reader's 1. Pub Viewer also leads on update cadence (daily vs every 2 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.
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. Instant Reader sells 1 in-app purchase, starting at $2.99 per month. Pub Viewer asks for nothing beyond the download.
Pub Viewer ships an update daily, Instant Reader every 2 weeks. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.
| Parameter | Pub Viewer | Instant Reader |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily โ better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 40 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | Cheonryong Jang | Roman Vygnich |
In-app purchases
Pub Viewer
No in-app purchases
Instant Reader
- Unlimited Actions$2.991 Month
Questions
Is Pub Viewer free?
Is Instant Reader free?
Do Pub Viewer or Instant Reader have ads?
Which is updated more often, Pub Viewer or Instant Reader?
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