ARC Score vs 초견챌린지
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ARC Score
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.
- Import PDF and image scores
- Handwritten note conversion
- Printed content editing
- Annotation tools
- Folders and setlists
- Page management
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ARC Score is a sheet music app for editing printed notation, adding annotations, and reading scores while you play. Edit with Apple Pencil on iPad or your finger on iPhone. On iPhone, use one finger to write, erase, and select, and two fingers to pan and zoom. Import PDF or image scores, or create a score from blank staff paper. Turn on printed-content editing to erase or move printed markings while preserving staff lines. Annotate with the pen and highlighter, and save your favorite colors and widths as quick tools. Write notes and rests on the staff of a new or imported score with Music Pen. Recognized handwriting becomes printed notation based on where you wrote it. Add dots or flags to revise it, or use Undo to return to the original handwriting. This does not automatically transcribe an entire existing score. Recognition results depend on handwriting and score quality. Key features • Import PDF and image scores • Staff-paper templates with or without a title area • Save personal PDFs as templates: repeat one selected page or use the complete PDF • Edit printed content while preserving staff lines • Convert handwritten notes and rests with Music Pen • Ordinary pen, highlighter, eraser, freeform and rectangular selection • Undo and Redo • Folders and setlists • Add, duplicate, reorder, and delete pages • Portrait, landscape, and two-page reading • Automatic saving and work recovery Hide the tools in reading mode while keeping system information such as the time and battery visible. Tap or swipe to turn pages, and use performance lock to reduce unintended actions. ARC Score supports Korean, English, and Japanese. Open App Language in settings to change the language in system settings. Printed-content editing and staff detection work best with clear PDFs and images. Results may vary with low-resolution scans and photographs. Access plans Keep up to five library scores for free, with viewing, ordinary annotations, basic management, saving, and export. A multi-page score counts as one library item. Tutorial scores do not count toward the free limit. No ARC Score account or login is required. Monthly and lifetime access provide the same current benefits: printed-content editing, Music Pen, and unlimited library scores. Prices vary by country or region. Check the price and terms shown in the app and Apple's purchase confirmation before buying. Monthly access is an auto-renewable subscription. Eligible subscribers receive a 14-day free trial, followed by the monthly charge unless cancelled. To avoid renewal, cancel in your Apple Account subscription settings at least 24 hours before the next billing date. Lifetime access is a one-time purchase with no automatic renewal. Buying lifetime access does not automatically cancel an existing monthly subscription. After a trial or subscription ends, existing scores and edits remain available for viewing, ordinary annotations, saving, and export. Scores above the free limit are retained. In free access, you can add a new score only when fewer than five library scores are stored. New printed-content editing and Music Pen use require active access. Use Restore Purchases to verify an existing purchase. Privacy Policy: https://arc-score-support.jzrtcmkrj4.chatgpt.site/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
초견챌린지
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초견챌린지는 매일 새로운 코드 진행, 리듬 패턴, 멜로디를 초견(악보를 처음 보고 바로 연주하기)하는 음악 연습 앱입니다. 실용음악과 입시, 오디션을 준비하는 분들에게 특히 필요한 초견 실력을 매일 조금씩 훈련할 수 있도록 만들었습니다. • 코드챌린지 — 매일 새로운 코드 진행을 보고 바로 연주해보세요 • 리듬챌린지 — 타악기 리듬 패턴을 초견하며 박자 감각을 기르세요 • 멜로디챌린지 — 계이름으로 멜로디를 초견하며 시창 실력을 키우세요 직접 연주한 영상을 올려 다른 사람들의 연주와 비교하며 배울 수 있고, 매일 참여 기록은 캘린더로 확인할 수 있습니다. 꾸준한 연습으로 초견 실력을 키워보세요.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ARC Score | 초견챌린지 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | sang hoon lee | jungwook cho |
Customer experience
ARC Score
초견챌린지
In-app purchases
ARC Score
- ARC Score Monthly14 Days trial$1.991 Month
- ARC Score Lifetime Access$17.99
초견챌린지
No in-app purchases








