# ARC Score vs 초견챌린지

The clearest difference is in-app purchases: 초견챌린지 at none against ARC Score's 2. 초견챌린지 also leads on iOS requirement (15.0 vs 18.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. ARC Score sells 2 in-app purchases, starting at $1.99 per month. 초견챌린지 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ARC Score | 초견챌린지 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Freemium | — |
| Size | 15 MB | 3 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [sang hoon lee](https://appshunter.io/developer/6797694140) | [jungwook cho](https://appshunter.io/developer/6791017829) |

## What reviewers say

### ARC Score

[App page](https://appshunter.io/ios/app/arc-score/id6797694138)

This app allows musicians to edit, annotate, and read sheet music. Import PDFs or images, create new scores, and use handwriting recognition to convert notes into printed notation. Manage your music library with folders and setlists.

**Highlights:** Import PDF and image scores, Handwritten note conversion, Printed content editing, Annotation tools, Folders and setlists, Page management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ARC Score Monthly | $1.99 | per month |
| ARC Score Lifetime Access | $17.99 | one-time |


### 초견챌린지

[App page](https://appshunter.io/ios/app/id6800208649)

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

**In-app purchases:** none


## Frequently asked questions

### Is ARC Score free?

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

### Is 초견챌린지 free?

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

### Do ARC Score or 초견챌린지 have ads?

Neither ARC Score nor 초견챌린지 shows ads.

### Which is updated more often, ARC Score or 초견챌린지?

ARC Score ships an update every 2 days, and 초견챌린지 every 2 days. Most recently, ARC Score was updated on November 1, 2026 and 초견챌린지 on October 31, 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.*