# CLASS101 vs 서울대학교 모바일 중앙도서관

The clearest difference is rating: CLASS101 at 4.6 against 서울대학교 모바일 중앙도서관's 2.3. CLASS101 also leads on ratings volume (548 vs 3). 서울대학교 모바일 중앙도서관's advantage is in-app purchases (none vs 9). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CLASS101 sells 6 in-app purchases, starting at $19.99 per month. 서울대학교 모바일 중앙도서관 asks for nothing beyond the download.

CLASS101 holds the better App Store score, 4.6 against 2.3. That said, the two scores are not equally well evidenced: CLASS101 has 548 ratings behind it against 3, so its average is the more settled of the two.

CLASS101 ships an update monthly, 서울대학교 모바일 중앙도서관 every 3 weeks. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CLASS101 | 서울대학교 모바일 중앙도서관 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (548 ratings)](https://appshunter.io/ios/app/class101-learn-online/id1320607634/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/id1672893597/reviews) |
| Number of ratings | **548** | 3 |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 120 MB | 76 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 9+ |
| Developer | [CLASS101 Inc.](https://appshunter.io/developer/1204259272) | [서울대학교 중앙도서관](https://appshunter.io/developer/1672893599) |

## What reviewers say

### CLASS101

[App page](https://appshunter.io/ios/app/class101-learn-online/id1320607634)

Explore thousands of online courses in arts, crafts, fitness, cooking, technology, and more. Access a vast library of content to learn new skills or develop existing hobbies. Subscription options provide unlimited access to a wide range of educational materials.

**Highlights:** 4,000+ online classes, Arts, crafts, fitness, cooking, languages, Technology and career development, Child education and wealth management, Unlimited access with subscription, Profile photo and video uploads

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CLASS101+ Monthly Subscription | $19.99 | per month |
| CLASS101+ Yearly Subscription | $129.99 | per year |
| CLASS101+ Yearly Subscription | $149.99 | per year |
| CLASS101+ Yearly Subscription | $169.99 | per year |
| CLASS101+ Yearly Subscription | $179.99 | per year |
| CLASS101+ Yearly Subscription | $199.99 | per year |

**What reviewers like**

- 👍 Diverse range of classes
- 🚀 Convenient online learning
- 💡 Helpful instructor feedback
- 🎨 Good for hobbies and skills development

**What reviewers complain about**

- 🐛 App stability issues (crashes, freezes, slow performance)
- 🌐 Lack of English language support
- 💰 Expensive subscription model, no monthly option
- 🤔 Confusing navigation and UI

**Reported bugs**

- Videos not playing properly
- Login issues, unable to access account
- Inconsistent language settings

**Requested features**

- Add English language support
- Improve app stability and performance
- Offer monthly subscription options
- Enhance class search and navigation


### 서울대학교 모바일 중앙도서관

[App page](https://appshunter.io/ios/app/id1672893597)

This app provides access to library services for Seoul National University members and library patrons. It allows for digital library cards, seat and facility reservations, academic resource searching, and viewing loan statuses. Stay updated with library news and announcements.

**Highlights:** Digital library card for gate and book authentication, Seat and facility reservation, Academic resource search, Loan and overdue fee management, Library news feed

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

**In-app purchases:** none


## Frequently asked questions

### Is CLASS101 free?

CLASS101 is free to download, with in-app purchases available.

### Is 서울대학교 모바일 중앙도서관 free?

서울대학교 모바일 중앙도서관 is free to download, with no in-app purchases.

### Which has better reviews, CLASS101 or 서울대학교 모바일 중앙도서관?

CLASS101 is rated higher. CLASS101 averages 4.6 out of 5 from 548 ratings, while 서울대학교 모바일 중앙도서관 averages 2.3 from 3 ratings.

### Do CLASS101 or 서울대학교 모바일 중앙도서관 have ads?

Neither CLASS101 nor 서울대학교 모바일 중앙도서관 shows ads.

### Which is updated more often, CLASS101 or 서울대학교 모바일 중앙도서관?

CLASS101 ships an update monthly, and 서울대학교 모바일 중앙도서관 every 3 weeks. Most recently, CLASS101 was updated on November 5, 2026 and 서울대학교 모바일 중앙도서관 on November 3, 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.*