ePub Pro vs Instant Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ePub Pro
This app allows you to read, organize, and sync your ePub eBooks across devices. It offers flexible display options, dark mode, and automatic progress saving. An optional upgrade unlocks advanced organization features like collections and custom metadata editing.
- Flexible display options (cards/list)
- Pin favorite eBooks
- Dark and Sepia reading modes
- iCloud sync across devices
- Auto-save reading progress
- Organize into collections (Expert)
- Edit titles and cover art (Expert)
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Read, Organize, and Sync Your ePub eBooks Effortlessly ePub Pro is the ultimate solution for reading ePub eBooks. Seamlessly manage, organize, and sync your eBook collection across all your devices, ensuring you have easy access wherever you are. Key Features: - Flexible Display Options: View your eBooks as customizable cards or a streamlined list in your Bookshelf. - Pin Your Favorites: Keep important eBooks at the top of your Bookshelf for quick access. - Dark Mode: Enjoy comfortable reading with less eye strain, day or night. - iCloud Sync: Securely sync your entire eBook across iPhone, iPad and Mac. - Widgets: Instantly access recent eBooks and Highlights right from your home screen. ePub Pro Features: - Auto-Save Reading Progress: Your place is saved automatically, and synced to iCloud, so you’ll never lose track of where you left off. - Flexible Reading Modes: Read in Single-Page or Continuous mode, with both horizontal and vertical scrolling options. - Sepia Reading Mode: Reduce eye strain with a warm, soft color filter that provides a gentler reading experience. - Easy Navigation: Use the built-in Table of Contents for quick jumps to sections within any document. Organise Your eBook Bookshelf: - Track Reading Status: Mark eBooks as "Finished", or add them to your Favorites list for easy access. - Archive Documents: Clear up your Bookshelf by moving completed or inactive books to the Archive. ePub Pro Expert – Unlock Advanced Features: Enjoy ePub Pro free with no limits on the number of eBooks you can store and read. Upgrade to ePub Pro Expert with a one-time purchase to support independent app development. Expert Features Include: - Organize into Collections: Create personalized Collections to group and sort your eBooks. - Edit Titles & Authors: Customize your Bookshelf's display by editing document titles and authors. - Change Cover Art: Update the cover images of your eBooks for better organization and visual appeal. ePub Pro is perfect for students, researchers, and professionals. Whether you're at uni, working on university papers, or diving into educational ebooks and scientific research, ePub Pro makes reading and managing your documents effortless. With features designed to streamline your workflow, it's ideal for organising class notes, research papers, and eBooks for study or work. Privacy Policy: https://verbia.com/privacy Terms of Use: https://verbia.com/terms
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 update cadence: Instant Reader at every 2 weeks against ePub Pro's every 3 months. Instant Reader also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases 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. ePub Pro sells 1 one-off in-app purchase and Instant Reader sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
ePub Pro ships an update every 3 months, Instant Reader every 2 weeks. The most recent releases landed on October 4, 2026 and September 26, 2026 respectively.
| Parameter | ePub Pro | Instant Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | Verbia Systems | Roman Vygnich |
In-app purchases
ePub Pro
- ePub Pro Expert$19.99
Instant Reader
- Unlimited Actions$2.991 Month









