Comparison

JamEngine vs Score Master

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

Head to head
About

JamEngine

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JamEngine is a real-time music generation app that puts a full backing band in your pocket. Choose from 15 musical styles, pick your key and tempo, and JamEngine instantly creates authentic, genre-appropriate arrangements, complete with MIDI drums, bass, guitar, piano, brass, and woodwind instruments. Whether you're a guitarist looking for a rhythm section to practice over, a songwriter sketching out chord progressions, a jazz player working on improvisation, or a producer hunting for inspiration, JamEngine gives you a responsive, endlessly variable musical companion. 15 STYLES TO CHOOSE FROM Rock ยท Hard Rock ยท Classic Rock ยท Metal ยท Pop ยท Ballad ยท Blues ยท Slow Blues ยท Jazz Swing ยท Jazz Ballad ยท Funk ยท Bossa Nova ยท Reggae ยท Country ยท Lo-fi Each style comes with genre-authentic drum patterns, bass lines, guitar voicings, keyboard parts, and horn arrangements. 12 INSTRUMENTS Build your arrangement from a roster of 12 instruments, each with realistic General MIDI sounds: โ€ข Drums ยท Bass ยท Electric Guitar ยท Acoustic Guitar โ€ข Piano ยท Organ ยท Strings โ€ข Trumpet ยท Trombone ยท Alto Sax ยท Tenor Sax ยท Clarinet Mix and match any combination. Each instrument has independent volume, mute, solo, pan, density and 11 variation levels to control the complexity and character of its part. SMART CHORD PROGRESSIONS Build chord progressions using the grid editor or the interactive Circle of Fifths, a visual tool that highlights diatonic chords in your selected key, so you can see at a glance which chords belong together. Start from scratch, or load one of the built-in templates: I-IV-V, I-V-vi-IV, ii-V-I, 12-Bar Blues, Jazz Turnaround, and more. Choose from 18 chord types including major, minor, seventh, diminished, augmented, sus, and extended chords. FLEXIBLE TIME & KEY Play in any of 7 time signatures, 2/4, 3/4, 4/4, 5/4, 6/8, 7/8, and 12/8, with BPM from 40 to 300. Tap tempo to match a song. Select any of the 12 keys in major or minor. Change key mid-session and your chord progression transposes automatically to preserve harmonic relationships. VARIATION RANDOMIZER Enable the variation randomizer and JamEngine will shuffle instrument variations at musically appropriate boundaries, every 4 or 8 bars, keeping your practice sessions fresh and unpredictable without you lifting a finger. EXPORT YOUR SESSIONS Capture your jam as a WAV, M4A, or multitrack MIDI file. Use export to bring your arrangements into your DAW for further production. SONGBOOK Save your favorite sessions, style, key, tempo, chord progression, and instrument setup to your personal Songbook. Load them instantly to pick up where you left off. CUSTOM SOUNDFONTS Import your own SF2 SoundFont files to customize the sound of every instrument. FREE TO START, PRO TO UNLOCK EVERYTHING JamEngine is free with 4 styles (Rock, Metal, Jazz Swing, Lo-fi), 3 song saves, and all playback features. Upgrade to JamEngine Pro for a one-time purchase to unlock all 15 styles, unlimited song saves, and full export capabilities.

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
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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 20โ€“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 415โ€“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 Master๋Š” ๋ฎค์ง€์…˜์ด ์‹ค์ œ ์—ฐ์ฃผ์™€ ์—ฐ์Šต ํ™˜๊ฒฝ์— ๋งž์ถฐ ๋งŒ๋“  ์ „๋ฌธ PDF ์•…๋ณด ๋ฆฌ๋”์ž…๋‹ˆ๋‹ค. 1. PDF ์•…๋ณด ๋ทฐ์–ด - ์„ ๋ช…ํ•œ ๊ณ ํ’ˆ์งˆ PDF ๋ Œ๋”๋ง - ์ตœ๋Œ€ 5๋ฐฐ ํ•€์น˜ ์คŒ๊ณผ ๋ถ€๋“œ๋Ÿฌ์šด ํ™”๋ฉด ์ด๋™ - iPad ๊ฐ€๋กœ ๋ชจ๋“œ 2ํŽ˜์ด์ง€ ํŽผ์นจ ๋ณด๊ธฐ - ํŽ˜์ด๋“œ, ์Šฌ๋ผ์ด๋“œ, ์Šค์ผ€์ผ ํŽ˜์ด์ง€ ์ „ํ™˜ 2. ์‚ฌ์ง„ ๊ฐ€์ ธ์˜ค๊ธฐ - ์‚ฌ์ง„์ฒฉ์˜ ์•…๋ณด ์ด๋ฏธ์ง€๋ฅผ ๋ฐ”๋กœ ๊ฐ€์ ธ์™€ PDF๋กœ ์ž๋™ ๋ณ€ํ™˜ - ์—ฌ๋Ÿฌ ์‚ฌ์ง„์„ ํ•˜๋‚˜์˜ ์•…๋ณด๋กœ ํ•ฉ์น˜๊ฑฐ๋‚˜ ๊ฐœ๋ณ„ ์•…๋ณด๋กœ ๊ฐ€์ ธ์˜ค๊ธฐ 3. ZIP ์ผ๊ด„ ๊ฐ€์ ธ์˜ค๊ธฐ - ZIP ํŒŒ์ผ์˜ ์—ฌ๋Ÿฌ PDF๋ฅผ ํ•œ ๋ฒˆ์— ๊ฐ€์ ธ์˜ค๊ธฐ - ์•…๋ณด ์ž๋™ ์ •๋ฆฌ ๋ฐ ์…‹๋ฆฌ์ŠคํŠธ ์ƒ์„ฑ 4. ํŽ˜์ด์ง€ ๊ด€๋ฆฌ - ํŽ˜์ด์ง€ ์ถ”๊ฐ€, ๋ณต์ œ, ์ œ๊ฑฐ ๋ฐ ๋“œ๋ž˜๊ทธ ์ •๋ ฌ - ๋‹ค์ค‘ ์„ ํƒ๊ณผ ์‹คํ–‰ ์ทจ์†Œยท๋‹ค์‹œ ์‹คํ–‰ ์ง€์› - ํ…œํ”Œ๋ฆฟ ์ถ”๊ฐ€ ๋ฐ ์„ ํƒํ•œ ํŽ˜์ด์ง€๋ฅผ ์ƒˆ ์•…๋ณด๋‚˜ PDF๋กœ ์ถ”์ถœ 5. ์•…๋ณด ํŽ˜์ด์ง€ ๋ณด์ • - ํŽ˜์ด์ง€ ๊ด€๋ฆฌ์—์„œ ์‚ฌ์ง„ ๋ฐ ์Šค์บ” ์•…๋ณด๋ฅผ ๋ฐ”๋กœ ๋ณด์ • - ์ข…์ด ์ •๋ฆฌ, ๋ฐ๊ธฐ, ๋Œ€๋น„, ์„ ๋ช…๋„, ํ‘๋ฐฑ, ์›๊ทผ ๋ณด์ •์„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ๋ฏธ๋ฆฌ๋ณด๊ธฐ - ๊ฐœ๋ณ„ยท์ผ๊ด„ยท์ž๋™ ๋ณด์ • ๋ฐ ์›๋ณธ ์ƒํƒœ๋กœ ์ดˆ๊ธฐํ™” ์ง€์› 6. ํ•˜ํ”„ ํŽ˜์ด์ง€ ํ„ด - ๋‹ค์Œ ํŽ˜์ด์ง€์˜ ์ ˆ๋ฐ˜์„ ๋ฏธ๋ฆฌ ํ™•์ธํ•ด ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ํŽ˜์ด์ง€ ์ „ํ™˜ 7. Apple Pencil ํ•„๊ธฐ - ํŽœ, ํ˜•๊ด‘ํŽœ, ์ง€์šฐ๊ฐœ, ์˜ฌ๊ฐ€๋ฏธ, ํ…์ŠคํŠธ, ์„ , ๋„ํ˜•, ํ™”์‚ดํ‘œ ์ง€์› - ํ•„๊ธฐ๋„๊ตฌ ๊ตต๊ธฐ๋ฅผ pt ๋‹จ์œ„๋กœ ํ™•์ธํ•˜๊ณ  ์กฐ์ ˆ - ํŽ˜์ด์ง€๋ณ„ ์ž๋™ ์ €์žฅ๊ณผ ์‹คํ–‰ ์ทจ์†Œยท๋‹ค์‹œ ์‹คํ–‰ 8. ๋ฉ”ํŠธ๋กœ๋†ˆ - ๊ณก๋ณ„ ํ…œํฌ์™€ ๋ฐ•์ž ์ €์žฅ - 20โ€“300 BPM ๋ฐ ๋น„ํŠธ๋ณ„ ์•…์„ผํŠธ ์„ค์ • - ์žฌ์ƒ์„ ๋ฉˆ์ถ”์ง€ ์•Š๊ณ  ํ…œํฌ ๋ณ€๊ฒฝ 9. ํฌ๋กœ๋งคํ‹ฑ ํŠœ๋„ˆ - ์Œ์ •, ์ฃผํŒŒ์ˆ˜ ๋ฐ ์„ผํŠธ ํŽธ์ฐจ๋ฅผ ์‹ค์‹œ๊ฐ„์œผ๋กœ ๊ฐ์ง€ - A4 ๊ธฐ์ค€์Œ 415โ€“466Hz ์กฐ์ ˆ - ์ƒต๊ณผ ํ”Œ๋žซ ์Œ์ด๋ฆ„ ํ‘œ๊ธฐ ์„ ํƒ 10. ํ”ผ์•„๋…ธ ๋กค - ์Šคํฌ๋กค ๊ฐ€๋Šฅํ•œ 88๊ฑด๋ฐ˜ ํ”ผ์•„๋…ธ - ๊ฑด๋ฐ˜์„ ํƒญํ•˜๊ฑฐ๋‚˜ ํ›‘์–ด ์Œ์ • ํ™•์ธ 11. ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ & ์…‹๋ฆฌ์ŠคํŠธ - ๊ณต์—ฐ ๋ฐ ์—ฐ์Šต์šฉ ์…‹๋ฆฌ์ŠคํŠธ ๊ตฌ์„ฑ - ๊ธฐ์กด ๋…ธ๋ž˜, ์ƒˆ ์•…๋ณด, ์‚ฌ์ง„ ๋ฐ ํŒŒ์ผ์„ ์…‹๋ฆฌ์ŠคํŠธ์— ๋ฐ”๋กœ ์ถ”๊ฐ€ - ์ฆ๊ฒจ์ฐพ๊ธฐ์™€ ์•ŒํŒŒ๋ฒณ ์ธ๋ฑ์Šค ์ง€์› 12. ๋ธ”๋ฃจํˆฌ์Šค ํŽ˜์ด์ง€ ํ„ฐ๋„ˆ - ํ’‹ ํŽ˜๋‹ฌ ๋ฐ ๋ธ”๋ฃจํˆฌ์Šค ์ปจํŠธ๋กค๋Ÿฌ ์ง€์› - ํ™”์‚ดํ‘œ, Page Up/Down, ์ŠคํŽ˜์ด์Šค๋ฐ”, ๋ณผ๋ฅจ ๋ฒ„ํŠผ ํ˜ธํ™˜ 13. ํ…Œ๋งˆ - ๋‹ค์–‘ํ•œ ์ปฌ๋Ÿฌ ํ…Œ๋งˆ์™€ ํ™”์ดํŠธ, ์„ธํ”ผ์•„, ๋‹คํฌ ์•…๋ณด ๋ฐฐ๊ฒฝ 14. ๊ณต์œ  ํ™•์žฅ - ๋‹ค๋ฅธ ์•ฑ์˜ ๊ณต์œ  ๋ฒ„ํŠผ์„ ํ†ตํ•ด ์•…๋ณด๋ฅผ ๋ฐ”๋กœ ๊ฐ€์ ธ์˜ค๊ธฐ

Screenshots

JamEngine4 screens
Score Master4 screens

Verdict

The call

The clearest difference is price: JamEngine at Free against Score Master's $9.99. JamEngine also leads on update cadence (every 5 days vs every 9 days). Score Master's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

JamEngine is free to download; Score Master costs $9.99 up front. JamEngine sells 1 one-off in-app purchase. Score Master asks for nothing beyond the download.

UpkeepUpdate frequency

JamEngine ships an update every 5 days, Score Master every 9 days. The most recent releases landed on September 27, 2026 and October 6, 2026 respectively.

Scorecard3 real differences ยท 5 level
JamEngine versus Score Master: the parameters behind the verdict, then further details
ParameterJamEngineScore Master
PriceFree โ€” better$9.99
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 5 days โ€” betterEvery 9 days
AdsNoNo
In-app purchasesYesNo โ€” better
Monetizationโ€”Paid
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.618.0 โ€” better
Further details โ€” not scored
Size149 MB15 MB
Age rating4+4+
DeveloperOrcun KeskinSanghyun Park

In-app purchases

1 purchases

JamEngine

One-time1
  • JamEngine Pro$8.99
None

Score Master

No in-app purchases

Questions

Is JamEngine free?
JamEngine is free to download, with in-app purchases available.
Is Score Master free?
Score Master costs $9.99, with no in-app purchases.
Do JamEngine or Score Master have ads?
Neither JamEngine nor Score Master shows ads.
Which is updated more often, JamEngine or Score Master?
JamEngine ships an update every 5 days, and Score Master every 9 days. Most recently, JamEngine was updated on September 27, 2026 and Score Master on October 6, 2026.

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