Comparison

Musicnotes vs KORG cortosia

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

Head to head
About

Musicnotes

Access and play over 500,000 sheet music arrangements. This digital library offers interactive playback, annotation tools, and transposition features to aid in practice, performance, and learning. Organize your music, scan printed scores, and sync notes across devices.

Highlights
  • Sheet music player and reader
  • Interactive playback
  • Transpose songs
  • Annotation tools
  • Organize into set lists
  • Access over 500,000 arrangements
  • Offline access
Features
Currently charting
Read full description

Musicnotes is your digital sheet music reader, player and music library for practice, performance, and learning. Access and print over 500,000 officially licensed printable sheet music arrangements, scores, and practice materials to play, study, and build your skills wherever you go. Whether you're a student, teacher, hobbyist, or professional musician, Musicnotes provides reliable, interactive annotation tools to support your musical education, rehearsal, and personal growth. Musicnotes brings sheet music and scores to life with interactive playback, helping you follow the notation as you listen, learn, and practice. WHY MUSICNOTES? • Sheet music player and reader for practice, rehearsal, lessons, and performance • Read, play, organize, annotate, perform, and print from one of the most trusted sheet music apps • Transpose songs into different keys for vocal training, music theory study, and instrument practice • Mark up your sheet music with a stylus or finger to improve sight-reading, interpretation, and recall skills • Organize your sheet music and scores into set lists for lessons, recitals, rehearsals, performances or group practice • Browse over 500,000 officially licensed printable sheet music arrangements, study scores and practice sheets • Receive 100 free sheet music titles, blank sheet music and scales, to support your learning and education journey • Upload and store your personal sheet music PDFs online for easy access • Easily import your Music notes sheet music pieces into the ForScore Pro app for note management • Discover popular musicals and artists like Sabrina Carpenter, Taylor Swift, La La Land, Lady Gaga, and Bruno Mars ACCESS A WORLD OF EDUCATIONAL MUSIC RESOURCES • Take your digital sheet music library offline—perfect for students, teachers, and performers seeking reliable music reference material • Scan printed scores and convert them into digital study material • Explore free and paid music for all skill levels, instruments and voice: piano, guitar, drums, flute, clarinet, trumpet, violin, cello, accordion, percussion, banjo, saxophone, tuba, baritone horn and more • Learn classical repertoire, lullabies, jazz standards, christmas classics or modern pop • Perfect for use in private lessons, school programs, and conservatory training PRACTICE TOOLS FOR MUSIC EDUCATION • Customize key and tempo for vocal range exercises or skill development • Use interactive playback with the music note player to improve rhythm, timing, and accuracy • Loop difficult sections for targeted repetition and muscle memory • Practice music theory fundamentals with harmony playback and tempo control • Organize your music note sheets into set lists to prepare for lessons, practice routines, or recitals ANNOTATE & TEACH MORE EFFECTIVELY • Highlight, write, and add custom markings to reinforce learning points • Switch between annotated and clean sheet music scores • Sync notes across devices with Musicnotes Pro, ideal for teachers & students THE BEST TOOL FOR TEACHING, LEARNING, AND PERFORMING • Tap or swipe to turn pages—or use AirTurn & Pageflip for hands-free playing • Customize paper backgrounds to mirror physical sheet music • Print purchased scores for classroom or in-person lessons • Use Musicnotes Pro Credits to redeem arrangements for your music curriculum • High-resolution PDFs available with Pro membership Try Musicnotes today and discover why music teachers, students, and performers trust it as the #1 sheet music reader, player, and performance app Musicnotes Pro is an annual subscription that will charge to your App Store Account & auto-renew unless auto-renew is turned off at least 24-hours before the end of the current period. Your App Store Account will be charged within 24-hours prior to the end of the current period. Your subscription & auto-renewal can be managed in your Account Settings. Terms of Use: https://www.musicnotes.com/TermsOfUseApp.html

About

KORG cortosia

This app helps musicians improve their sound quality by analyzing five key elements of performance in real-time. It provides instant feedback, tracks daily progress, and allows users to compare their skills globally. Ideal for beginners and intermediate players seeking to refine their technique.

Highlights
  • Real-time analysis of five 'good sound' elements
  • Instant scoring on a 100-point scale
  • Daily practice recording and progress tracking
  • Global ranking for 'good sound' competition
  • Supports multiple wind and string instruments
  • Model tone comparison
Read full description

KORG cortosia, the tuner app that makes it enjoyable to practice the basics Learn “good sound” and enjoy “good performance”! *This app can evaluate only flute, clarinet, trumpet, violin, cello, saxophone, trombone and euphonium performances. (Operating Requirements) iOS8 or later iPhone 5 or later, iPod Touch 5th Generation or later KORG has answered the question: “Can a tuner recognize good sound?” With the KORG cortosia you'll see what's missing from “good sound” with just a glance. Even practice that's slightly boring (such as practicing the production of single notes) will become enjoyable. The cortosia is a completely new type of interactive tuner app designed to improve the overall quality of sound produced by the artist. * Analyzes five elements of “good sound” and rates them in real time * Automatically records “good sound” so you can check your daily improvement in technique * Lets you compete against the world in “good sound” and vie for ranking * Supports flute, clarinet, trumpet, violin, cello, saxophone, trombone and euphonium Analyze five elements of “good sound” and rate them in real time: Just what is “good sound”? Beautiful sound, pleasant sound, sound that resonates in the listener's heart. Perceptions of “good sound” differ between people, but could there be some commonalities? Through cooperative research with Pompeu Fabra University in Barcelona, Spain, under the direction of Professor Xavier Serra, Korg has arrived at a technology “Artistry” (*1) for evaluating “good sound” based on five elements. 1: Pitch Stability 2: Dynamic Stability 3: Timbre Stability 4: Timbre Richness 5: Attack Clarity Simultaneously with the tuner display, a radar chart shows the results of analyzing these five elements in real time, and scores them on a scale of 100 points. While tuning, you can see at a glance what aspects of your tone are lacking. You can also listen to a model tone and hear how it differs from your own sound. This is highly recommended for beginners who have just started a musical instrument, as well as for intermediate players who want to advance to the next level. *1: Automatic Rating Technology for musical InSTRument plaYers Automatically record “good sound,” and check your daily advances in technique: Data is automatically recorded and kept when tuning and scoring. You can audition the accumulated recording data or recall a radar chart for it, and you can also check the number of hours you practiced and your best score for each day. By looking at your past results, you can see how you are progressing. In addition, you can post your score to a social networking service such as Facebook or Twitter allowing you to record or upload your daily progress (or backsliding) as if you were writing a diary. Whether you use this to compete with your friends or to give encouraging comments, it's a great way to improve your skill while enjoyably sharing information. Compete with the world for “good sound”: Your ranking is compiled by averaging your highest score for each note, and displayed. You'll be able to see your current position among performers around the world who use cortosia. Supports flute, clarinet, trumpet, violin, cello, saxophone, trombone and euphonium. A full range of basic functionality including tuner, metronome, and level meter: In addition to a chromatic tuner that benefits from Korg's forty years of know-how in tuner development, there's a metronome that supports tap tempo, and even a level meter, making cortosia a great partner for performance or practice.

Screenshots

Musicnotes4 screens
KORG cortosia4 screens

Verdict

The call

The clearest difference is price: Musicnotes at Free against KORG cortosia's $9.99. Musicnotes also leads on rating (4.8 vs 4.2) and ratings volume (43K vs 6). KORG cortosia's advantage is in-app purchases (none vs 10) and ads (none vs shown). On review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

Musicnotes is free to download; KORG cortosia costs $9.99 up front. Musicnotes sells 9 in-app purchases, starting at $14.99 per year. KORG cortosia asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Musicnotes holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Musicnotes has 43K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 55% of Musicnotes's written reviews are positive against 48% of KORG cortosia's.

UpkeepUpdate frequency

Musicnotes ships an update fortnightly, KORG cortosia every 2 months. The most recent releases landed on November 9, 2026 and November 4, 2026 respectively.

Scorecard9 real differences · 2 level
Musicnotes versus KORG cortosia: the parameters behind the verdict, then further details
ParameterMusicnotesKORG cortosia
PriceFree — better$9.99
Rating4.8 (43K ratings) — better4.2 (6 ratings)
Positive reviews54.9% of reviews — better47.8% of reviews
Number of ratings43K — better6
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#167 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size122 MB35 MB
Age rating9+12+
DeveloperMusicnotesKORG INC.

Customer experience

Musicnotes

All ratings43,389 ratings
Positive97.8%
Neutral1.3%
Negative0.9%
Written reviews607 reviews
Positive54.9%
Neutral12.7%
Negative32.5%

KORG cortosia

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews23 reviews
Positive47.8%
Neutral26.1%
Negative26.1%

Bugs and requests

Musicnotes

Reported bugs

4 issues
  • Login issues and inability to access purchased content
  • Crashes and performance problems, especially on newer devices
  • Inconsistent behavior when navigating and scrolling sheet music
  • Unreliable playback and sync features

Requested features

5 requests
  • Add ability to permanently delete pre-installed songs
  • Improve note-taking and annotation tools, including Apple Pencil support
  • Implement better browsing and search functionality
  • Allow more flexible printing and copying options
  • Add seamless syncing between app and website purchases

KORG cortosia

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Musicnotes

Subscriptions1
  • Musicnotes Pro$14.991 Year
One-time8
  • PDF Sheet Music Arrangement2 variants$2.99
  • Sheet Music Arrangement$3.99
  • Sheet Music Arrangement$4.99
Show 5 more
  • Sheet Music Arrangement$5.99
  • Sheet Music Arrangement$6.99
  • Sheet Music Arrangement$7.99
  • Sheet Music Arrangement + PDF$8.99
  • Sheet Music Arrangement + PDF$9.99
None

KORG cortosia

No in-app purchases

Questions

Is Musicnotes free?
Musicnotes is free to download, with in-app purchases available.
Is KORG cortosia free?
KORG cortosia costs $9.99, with no in-app purchases.
Which has better reviews, Musicnotes or KORG cortosia?
Musicnotes is rated higher. Musicnotes averages 4.8 out of 5 from 43K ratings, while KORG cortosia averages 4.2 from 6 ratings.
Do Musicnotes or KORG cortosia have ads?
Musicnotes shows ads; KORG cortosia does not.
Which is updated more often, Musicnotes or KORG cortosia?
Musicnotes ships an update fortnightly, and KORG cortosia every 2 months. Most recently, Musicnotes was updated on November 9, 2026 and KORG cortosia on November 4, 2026.

Other comparisons