Intervals and Chords vs Score Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intervals and Chords
This music theory app helps musicians of all levels visualize and understand chords. It features real-time chord detection, key selection, and enhanced visualization for deeper harmonic exploration.
- Real-time chord detection
- Key selection for chord adaptation
- Enhanced chord rendering
- Exploration of inversions and voicings
- Instant musical feedback
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Explore harmony wherever you practise. Intervals and Chords identifies possible chords from the notes you are holding and gives you immediate visual feedback on iPhone and iPad. Play the onscreen piano or connect a compatible MIDI controller to explore chords, intervals and musical notation wherever you are. SEE WHAT YOU’RE PLAYING • Identify complete chords and inversions • View note names and the intervals that shape each chord • Compare multiple valid interpretations of the same notes • See notes written on treble and bass staves • Highlight notes belonging to your selected major key LEARN IN CONTEXT Choose from 15 major keys, or use a keyless mode that prefers flats or sharps. Optional Roman-numeral scale degrees help connect each chord to the selected key. Valid chords outside that key are clearly identified without treating them as mistakes. GO DEEPER WHEN YOU’RE READY Advanced interpretation options can identify incomplete and rootless voicings or detect played scales. Beginner-friendly defaults keep complete chords and inversions at the top, so the most useful answers appear first. MADE FOR IPHONE AND IPAD Use the app as a portable music-theory companion at your instrument, in a lesson or while practising away from your desk. The interface adapts to iPhone and iPad, with support for accessible text and VoiceOver. Intervals and Chords analyses the notes currently held. It does not analyse chord progressions or attempt to determine a chord’s musical function within a composition.
Score Master
This app is a professional PDF sheet music reader designed for musicians. It offers features like high-quality PDF rendering, photo import, annotation tools, a metronome, and a tuner to enhance practice and performance workflows.
- High-quality PDF rendering
- Photo to PDF conversion
- Annotation tools
- Built-in metronome
- Chromatic tuner
- Bluetooth page turner support
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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
Verdict
The clearest difference is price: Intervals and Chords at $5.99 against Score Master's $9.99. Intervals and Chords also leads on iOS requirement (15.0 vs 17.5). Score Master's advantage is review sentiment (100% vs 83%) and update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases, monetization model and device support 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
Intervals and Chords costs $5.99 and Score Master $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Intervals and Chords ships an update every 2 months, Score Master every 3 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Intervals and Chords | Score Master |
|---|---|---|
| Price | $5.99 — better | $9.99 |
| Rating | 4.8 (10 ratings) — better | — |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 17 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Instinctive | Sanghyun Park |
Customer experience
Intervals and Chords
Score Master
In-app purchases
Intervals and Chords
No in-app purchases
Score Master
No in-app purchases
Questions
Is Intervals and Chords free?
Is Score Master free?
Do Intervals and Chords or Score Master have ads?
Which is updated more often, Intervals and Chords or Score Master?
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