# 오픽 1위 오픽업 vs XClass by XIIID

The clearest difference is in-app purchases: XClass by XIIID at none against 오픽 1위 오픽업's 10. XClass by XIIID also leads on update cadence (every 9 days vs every 4 weeks). 오픽 1위 오픽업's advantage is iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. 오픽 1위 오픽업 sells 9 one-off in-app purchases. XClass by XIIID asks for nothing beyond the download.

오픽 1위 오픽업 ships an update every 4 weeks, XClass by XIIID every 9 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 오픽 1위 오픽업 | XClass by XIIID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/1/id1475710765/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 95.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 66 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HUE6 Co., Ltd](https://appshunter.io/developer/1475710764) | [Kulucky Rangers Inc.](https://appshunter.io/developer/1594808743) |

## What reviewers say

### 오픽 1위 오픽업

[App page](https://appshunter.io/ios/app/1/id1475710765)

Prepare for your OPIC exam with this comprehensive learning app. Study topics, practice speaking with AI evaluation, and experience a realistic VR exam environment to hone your skills.

**Highlights:** Topic-based learning, Detailed exam evaluation, Realistic VR exam simulation, Script generation and management, AI-powered feedback

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 실전문제 10회 | $7.99 | one-time |
| 모의고사 1회 | $10.99 | one-time |
| 모의고사 1회 | $12.99 | one-time |
| 모의고사 1회 | $15.99 | one-time |
| 실전문제 20일 이용권 | $22.99 | one-time |
| 1주 긴급 대비 | $36.99 | one-time |
| 토픽 완성 2주 | $36.99 | one-time |
| 실전문제 50일 이용권 | $39.99 | one-time |
| 2주 완벽 대비 | $47.99 | one-time |


### XClass by XIIID

[App page](https://appshunter.io/ios/app/xclass-by-xiiid/id6777957719)

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

**In-app purchases:** none


## Frequently asked questions

### Is 오픽 1위 오픽업 free?

오픽 1위 오픽업 is free to download, with in-app purchases available.

### Is XClass by XIIID free?

XClass by XIIID is free to download, with no in-app purchases.

### Do 오픽 1위 오픽업 or XClass by XIIID have ads?

Neither 오픽 1위 오픽업 nor XClass by XIIID shows ads.

### Which is updated more often, 오픽 1위 오픽업 or XClass by XIIID?

오픽 1위 오픽업 ships an update every 4 weeks, and XClass by XIIID every 9 days. Most recently, 오픽 1위 오픽업 was updated on October 5, 2026 and XClass by XIIID on October 7, 2026.

---

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