# 시원스쿨 B2B vs ChartDraw

The clearest difference is in-app purchases: ChartDraw at none against 시원스쿨 B2B's 1. ChartDraw also leads on update cadence (every 3 days vs every 6 weeks). 시원스쿨 B2B's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

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

시원스쿨 B2B ships an update every 6 weeks, ChartDraw every 3 days. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 시원스쿨 B2B | ChartDraw |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/b2b/id1466172973/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 89 MB | 14 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siwonschool](https://appshunter.io/developer/473647838) | [Lindy Operation Inc.](https://appshunter.io/developer/6793814445) |

## What reviewers say

### 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 |


### ChartDraw

[App page](https://appshunter.io/ios/app/chartdraw/id6793814443)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 시원스쿨 B2B free?

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

### Is ChartDraw free?

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

### Do 시원스쿨 B2B or ChartDraw have ads?

Neither 시원스쿨 B2B nor ChartDraw shows ads.

### Which is updated more often, 시원스쿨 B2B or ChartDraw?

시원스쿨 B2B ships an update every 6 weeks, and ChartDraw every 3 days. Most recently, 시원스쿨 B2B was updated on September 29, 2026 and ChartDraw on September 23, 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.*