# 해피캠퍼스 vs 이지패스 SQLD

The clearest difference is in-app purchases: 이지패스 SQLD at none against 해피캠퍼스's 4. 이지패스 SQLD also leads on ads (none vs shown) and device support (3 vs 1). 해피캠퍼스's advantage is update cadence (every 3 weeks vs every 8 months). On price there is nothing between them.

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

해피캠퍼스 ships an update every 3 weeks, 이지패스 SQLD every 8 months. Both last shipped on November 4, 2026.

## The numbers

| Metric | 해피캠퍼스 | 이지패스 SQLD |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 48 MB | 3 MB |
| Requires iOS | 16.0 | **14.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Agentsoft Co., Ltd.](https://appshunter.io/developer/1078532533) | [Park Chankyu](https://appshunter.io/developer/1540520080) |

## What reviewers say

### 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 |


### 이지패스 SQLD

[App page](https://appshunter.io/ios/app/sqld/id6740427922)

Prepare for the SQLD certification exam with this comprehensive study guide. It offers efficient learning tools, an online study group, and a Q&A community with direct author support. Ideal for beginners and those needing to study on the go.

**Highlights:** SQLD exam preparation, Comprehensive study guide, Online study group, Q&A community, Targeted practice for incorrect answers, Study anytime, anywhere

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

**In-app purchases:** none


## Frequently asked questions

### Is 해피캠퍼스 free?

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

### Is 이지패스 SQLD free?

이지패스 SQLD is free to download, with no in-app purchases.

### Do 해피캠퍼스 or 이지패스 SQLD have ads?

해피캠퍼스 shows ads; 이지패스 SQLD does not.

### Which is updated more often, 해피캠퍼스 or 이지패스 SQLD?

해피캠퍼스 ships an update every 3 weeks, and 이지패스 SQLD every 8 months. Most recently, 해피캠퍼스 was updated on November 4, 2026 and 이지패스 SQLD on November 4, 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.*