Comparison

ChordDeck vs Score Master

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ChordDeck

This app provides jazz chord flashcards for musicians to practice chord recall. It displays chord symbols, tones, formulas, and keyboard highlights, with audio playback. Users can mark difficult cards for later review.

Highlights
  • Practice jazz chord qualities
  • Circle-of-fourths or random root order
  • Continuous or one-pass practice sessions
  • View chord tones, formulas, and keyboard highlights
  • Built-in audio playback
  • Mark and review difficult cards
  • Local storage for settings and marked cards
Features
Read full description

ChordDeck is a compact flashcard app for practicing jazz chord recall. Choose the roots and chord qualities you want to drill, then move through a focused deck one card at a time. Each card starts with a chord symbol so you can recall the answer mentally or on your instrument before revealing the details. Reveal a card to check the chord tones, a short formula, a compact piano keyboard highlight, and built-in audio playback. Mark difficult cards during practice and review them again later from the first screen. ChordDeck is designed for musicians who already know basic chord concepts and want a fast, repeatable way to build fluency. It keeps practice visual and direct instead of turning each session into a lesson page. Features: - Practice common jazz chord qualities across selected roots. - Follow circle-of-fourths root order or use random card order. - Choose one-pass sessions or continuous practice. - Reveal chord tones, formulas, and compact keyboard highlights. - Hear chord tones followed by the full chord. - Mark difficult cards and review them in a focused deck. - Use swipe navigation, previous and next controls, and timed autoplay. - Keep practice settings and marked cards stored locally on your device. ChordDeck is useful for jazz students, pianists, guitarists, bassists, arrangers, and other musicians who want quicker recognition of chord symbols, tones, and formulas.

About

Score Master

This app is a professional PDF sheet music reader designed for musicians. It offers high-quality rendering, annotation tools, a built-in metronome, and seamless import options for sheet music. Manage your scores and setlists efficiently for practice and performance.

Highlights
  • High-quality PDF score viewer
  • Import photos and ZIP files
  • Annotation with Apple Pencil
  • Built-in metronome
  • Setlist management
  • Bluetooth page turner support
Features
Read full description

Score Master is a professional PDF sheet music reader built by musicians for real performance and practice workflows. 1. PDF Score Viewer - Clear, high-quality PDF rendering - Smooth navigation with pinch-to-zoom up to 5x - Two-page landscape view on iPad - Fade, slide, and scale page transitions 2. Photo Import - Import sheet music directly from your photo library - Automatically converts images to PDF - Combine multiple photos into one score or import them separately 3. ZIP Import - Import multiple PDFs from a single ZIP file - Automatically organize them and create a setlist 4. Pages Manager - Add, duplicate, remove, and drag to reorder pages - Multi-select pages with undo and redo support - Add templates or extract selected pages as a new score or PDF 5. Score Enhancement - Enhance photographed or scanned scores directly in Pages Manager - Preview paper cleanup, brightness, contrast, sharpness, black-and-white, and perspective adjustments in real time - Enhance one page or multiple pages, use automatic enhancement, or reset to the original 6. Half-Page Turn - Preview half of the next page for smoother page turns 7. Apple Pencil Annotation - Pen, highlighter, eraser, lasso, text, lines, shapes, and arrows - Adjustable tool widths displayed in points - Per-page auto-save with undo and redo 8. Metronome - Save tempo and time signature for each score - Supports 20–300 BPM and customizable accent patterns - Change tempo during playback without restarting the beat 9. Chromatic Tuner - Real-time note, frequency, and cents detection - Adjustable A4 reference from 415–466 Hz - Sharp and flat note-name options 10. Piano Roll - Scrollable 88-key piano keyboard - Tap or slide across keys to check pitches 11. Library & Setlists - Create setlists for performance or practice - Add songs, new scores, photos, and files directly to a setlist - Favorites and alphabetical navigation 12. Bluetooth Page Turners - Supports foot pedals and Bluetooth controllers - Works with arrow keys, Page Up/Down, spacebar, and volume buttons 13. Themes - Multiple color themes with White, Sepia, and Dark score backgrounds 14. Share Extension - Import scores directly from other apps through the share sheet Score Master는 뮤지션이 실제 연주와 연습 환경에 맞춰 만든 전문 PDF 악보 리더입니다. 1. PDF 악보 뷰어 - 선명한 고품질 PDF 렌더링 - 최대 5배 핀치 줌과 부드러운 화면 이동 - iPad 가로 모드 2페이지 펼침 보기 - 페이드, 슬라이드, 스케일 페이지 전환 2. 사진 가져오기 - 사진첩의 악보 이미지를 바로 가져와 PDF로 자동 변환 - 여러 사진을 하나의 악보로 합치거나 개별 악보로 가져오기 3. ZIP 일괄 가져오기 - ZIP 파일의 여러 PDF를 한 번에 가져오기 - 악보 자동 정리 및 셋리스트 생성 4. 페이지 관리 - 페이지 추가, 복제, 제거 및 드래그 정렬 - 다중 선택과 실행 취소·다시 실행 지원 - 템플릿 추가 및 선택한 페이지를 새 악보나 PDF로 추출 5. 악보 페이지 보정 - 페이지 관리에서 사진 및 스캔 악보를 바로 보정 - 종이 정리, 밝기, 대비, 선명도, 흑백, 원근 보정을 실시간으로 미리보기 - 개별·일괄·자동 보정 및 원본 상태로 초기화 지원 6. 하프 페이지 턴 - 다음 페이지의 절반을 미리 확인해 자연스럽게 페이지 전환 7. Apple Pencil 필기 - 펜, 형광펜, 지우개, 올가미, 텍스트, 선, 도형, 화살표 지원 - 필기도구 굵기를 pt 단위로 확인하고 조절 - 페이지별 자동 저장과 실행 취소·다시 실행 8. 메트로놈 - 곡별 템포와 박자 저장 - 20–300 BPM 및 비트별 악센트 설정 - 재생을 멈추지 않고 템포 변경 9. 크로매틱 튜너 - 음정, 주파수 및 센트 편차를 실시간으로 감지 - A4 기준음 415–466Hz 조절 - 샵과 플랫 음이름 표기 선택 10. 피아노 롤 - 스크롤 가능한 88건반 피아노 - 건반을 탭하거나 훑어 음정 확인 11. 라이브러리 & 셋리스트 - 공연 및 연습용 셋리스트 구성 - 기존 노래, 새 악보, 사진 및 파일을 셋리스트에 바로 추가 - 즐겨찾기와 알파벳 인덱스 지원 12. 블루투스 페이지 터너 - 풋 페달 및 블루투스 컨트롤러 지원 - 화살표, Page Up/Down, 스페이스바, 볼륨 버튼 호환 13. 테마 - 다양한 컬러 테마와 화이트, 세피아, 다크 악보 배경 14. 공유 확장 - 다른 앱의 공유 버튼을 통해 악보를 바로 가져오기

Screenshots

ChordDeck4 screens
Score Master4 screens

Verdict

The call

The clearest difference is price: ChordDeck at $0.99 against Score Master's $9.99. On review sentiment, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

ChordDeck costs $0.99 and Score Master $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ChordDeck ships an update weekly, Score Master every 9 days. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 9 level
ChordDeck versus Score Master: the parameters behind the verdict, then further details
ParameterChordDeckScore Master
Price$0.99 — better$9.99
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size4 MB15 MB
Age rating4+4+
DeveloperShinhye LeeSanghyun Park

Customer experience

ChordDeck

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Score Master

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ChordDeck

No in-app purchases

None

Score Master

No in-app purchases

Questions

Is ChordDeck free?
ChordDeck costs $0.99, with no in-app purchases.
Is Score Master free?
Score Master costs $9.99, with no in-app purchases.
Do ChordDeck or Score Master have ads?
Neither ChordDeck nor Score Master shows ads.
Which is updated more often, ChordDeck or Score Master?
ChordDeck ships an update weekly, and Score Master every 9 days. Most recently, ChordDeck was updated on September 29, 2026 and Score Master on October 6, 2026.

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