# 해커스 MP3 플레이어 vs 시원스쿨 B2B

The clearest difference is rating: 시원스쿨 B2B at 4.8 against 해커스 MP3 플레이어's 1.6. 시원스쿨 B2B also leads on review sentiment (64% vs 44%) and iOS requirement (13.0 vs 15.0). 해커스 MP3 플레이어's advantage is in-app purchases (none vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 시원스쿨 B2B sells 1 one-off in-app purchase. 해커스 MP3 플레이어 asks for nothing beyond the download.

시원스쿨 B2B holds the better App Store score, 4.8 against 1.6. Both are backed by a comparable volume of ratings — 19 and 13 respectively. Written reviews point the same way: 44% of 해커스 MP3 플레이어's written reviews are positive against 64% of 시원스쿨 B2B's.

해커스 MP3 플레이어 ships an update every 3 weeks, 시원스쿨 B2B every 6 weeks. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 해커스 MP3 플레이어 | 시원스쿨 B2B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (19 ratings)](https://appshunter.io/ios/app/mp3/id531669642/reviews) | **[4.8 (13 ratings)](https://appshunter.io/ios/app/b2b/id1466172973/reviews)** |
| Number of ratings | **19** | 13 |
| Positive reviews | 44.1% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 55 MB | 89 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Champ Study Institute](https://appshunter.io/developer/466747997) | [Siwonschool](https://appshunter.io/developer/473647838) |

## What reviewers say

### 해커스 MP3 플레이어

[App page](https://appshunter.io/ios/app/mp3/id531669642)

Access a wide range of free and paid educational content for learning. Stream or download lessons using your Hackers integrated account. Requires iOS 15.0 or later.

**Highlights:** Stream and download educational content, Free and paid content options, Integrated Hackers account, Push notifications for learning alarms, Photo/video attachment for feedback, Voice recording for feedback

**Features:** Vision Pro support

**In-app purchases:** none


### 시원스쿨 B2B

[App page](https://appshunter.io/ios/app/b2b/id1466172973)

This app provides access to all lectures for corporate and group members. Enjoy convenient lecture playback with background audio, seamless continuation, and offline downloads. Track your progress by package or individual course.

**Highlights:** Background playback, Lecture review/study question submission, Continue listening to lectures, Download and select lectures, View progress by package/course

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 기초영어 왕초보속성코스 | $99.99 | one-time |


## Frequently asked questions

### Is 해커스 MP3 플레이어 free?

해커스 MP3 플레이어 is free to download, with no in-app purchases.

### Is 시원스쿨 B2B free?

시원스쿨 B2B is free to download, with in-app purchases available.

### Which has better reviews, 해커스 MP3 플레이어 or 시원스쿨 B2B?

시원스쿨 B2B is rated higher. 해커스 MP3 플레이어 averages 1.6 out of 5 from 19 ratings, while 시원스쿨 B2B averages 4.8 from 13 ratings.

### Do 해커스 MP3 플레이어 or 시원스쿨 B2B have ads?

Neither 해커스 MP3 플레이어 nor 시원스쿨 B2B shows ads.

### Which is updated more often, 해커스 MP3 플레이어 or 시원스쿨 B2B?

해커스 MP3 플레이어 ships an update every 3 weeks, and 시원스쿨 B2B every 6 weeks. Most recently, 해커스 MP3 플레이어 was updated on September 22, 2026 and 시원스쿨 B2B on September 10, 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.*