# 日医Lib vs Epub Reader with AI

The clearest difference is price: 日医Lib at Free against Epub Reader with AI's $4.99. 日医Lib also leads on in-app purchases (none vs 2) and iOS requirement (11.0 vs 16.4). Epub Reader with AI's advantage is update cadence (weekly vs every 3 months) and review sentiment (50% vs 25%). On ads and device support there is nothing between them.

日医Lib is free to download; Epub Reader with AI costs $4.99 up front. Epub Reader with AI sells 2 in-app purchases, starting at $1.99 per month. 日医Lib asks for nothing beyond the download.

日医Lib ships an update every 3 months, Epub Reader with AI weekly. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 日医Lib | Epub Reader with AI |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[4.9 (7 ratings)](https://appshunter.io/ios/app/epub-reader-with-ai-books-pro/id6448806720/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 25.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Subscription |
| Size | 25 MB | 263 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyorinsha Co.,Ltd](https://appshunter.io/developer/482525161) | [Kairoos Solutions SL](https://appshunter.io/developer/978066434) |

## What reviewers say

### 日医Lib

[App page](https://appshunter.io/ios/app/lib/id926183203)

Access and read electronic books from the Japan Medical Association. Features include unique scrolling for academic papers, shared notes and bookmarks, and social media integration for discussion.

**Highlights:** Electronic books from Japan Medical Association, Unique scrolling for academic papers, Shared notes and bookmarks, SNS integration for discussion, Cross-scroll and vertical scroll

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Epub Reader with AI

[App page](https://appshunter.io/ios/app/epub-reader-with-ai-books-pro/id6448806720)

This app is a versatile eBook reader supporting numerous file formats including EPUB, PDF, and documents. It offers editing capabilities, cloud integration, customizable reading options, and an AI assistant for summaries and translations. Organize your library with ease and enjoy a personalized reading experience.

**Highlights:** Supports EPUB, PDF, TXT, DOCX, and more, Edit documents directly within the app, Import/export from cloud services, Customizable themes and font sizes, AI-powered summaries and translations, Interactive annotations and form filling

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Books Pro Full AI Assistant | $1.99 | per month |
| Books Pro Upgrade | $3.99 | one-time |


## Frequently asked questions

### Is 日医Lib free?

日医Lib is free to download, with no in-app purchases.

### Is Epub Reader with AI free?

Epub Reader with AI costs $4.99, and also offers in-app purchases.

### Do 日医Lib or Epub Reader with AI have ads?

Neither 日医Lib nor Epub Reader with AI shows ads.

### Which is updated more often, 日医Lib or Epub Reader with AI?

日医Lib ships an update every 3 months, and Epub Reader with AI weekly. Most recently, 日医Lib was updated on October 6, 2026 and Epub Reader with AI on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*