# 에피루스 전자책도서관 vs 해피캠퍼스

The clearest difference is in-app purchases: 에피루스 전자책도서관 at none against 해피캠퍼스's 4. 에피루스 전자책도서관 also leads on ads (none vs shown) and device support (3 vs 1). 해피캠퍼스's advantage is update cadence (every 3 weeks vs every 7 months). On price, review sentiment and iOS requirement there is nothing between them.

Both are free to download. 해피캠퍼스 sells 4 one-off in-app purchases. 에피루스 전자책도서관 asks for nothing beyond the download.

에피루스 전자책도서관 ships an update every 7 months, 해피캠퍼스 every 3 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 에피루스 전자책도서관 | 해피캠퍼스 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/1/id347246821/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **4.3% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 52 MB | 48 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Blue Mountain Soft Inc.](https://appshunter.io/developer/347246824) | [Agentsoft Co., Ltd.](https://appshunter.io/developer/1078532533) |

## What reviewers say

### 에피루스 전자책도서관

[App page](https://appshunter.io/ios/app/1/id347246821)

Access and read a wide range of e-books from hundreds of public and university libraries. Borrow, return, and enjoy digital books conveniently on your iOS device.

**Highlights:** Unified e-book service, Access public and university libraries, Borrow and return e-books, Read anytime, anywhere, Supports XDF and Epyrus Xbook formats, Reflowable text for comfortable reading

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

**In-app purchases:** none


### 해피캠퍼스

[App page](https://appshunter.io/ios/app/id6472879125)

Access a vast library of academic papers, resumes, and study materials for various educational levels. Share your own work and earn money through a peer-to-peer marketplace. Available on both PC and mobile devices.

**Highlights:** Access academic papers and study materials, Upload and sell your own documents, Earn money from shared content, Browse popular topics and case studies, View and download original documents, Cross-platform PC and mobile access

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10,000코인 충전 | $9.99 | one-time |
| 20,000코인 충전 | $19.99 | one-time |
| 30,000코인 충전 | $29.99 | one-time |
| 50,000코인 충전 | $49.99 | one-time |


## Frequently asked questions

### Is 에피루스 전자책도서관 free?

에피루스 전자책도서관 is free to download, with no in-app purchases.

### Is 해피캠퍼스 free?

해피캠퍼스 is free to download, with in-app purchases available.

### Do 에피루스 전자책도서관 or 해피캠퍼스 have ads?

해피캠퍼스 shows ads; 에피루스 전자책도서관 does not.

### Which is updated more often, 에피루스 전자책도서관 or 해피캠퍼스?

에피루스 전자책도서관 ships an update every 7 months, and 해피캠퍼스 every 3 weeks. Most recently, 에피루스 전자책도서관 was updated on October 29, 2026 and 해피캠퍼스 on October 30, 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.*