CalmusNotation vs Sibelius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalmusNotation
Create and visualize musical compositions using AI-powered graphical notation. This app leverages advanced AI, inspired by NASA's Lisp programming, to generate original music based on user input and can display music from other compatible apps for live performance.
- AI-powered music composition
- Graphical notation display
- Real-time performance visualization
- Lisp-based AI engine
- User input-driven music creation
- Integration with CalmusComposer and CalmusPlay
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Graphical Notation is an app for music creation and graphical notation using Artificial Intelligence. The coreof Graphical Notation is the CalmusAI brain where the modern composing methods are programmed into the brain using Lisp programming language. NASA has historically used Lisp for artificial intelligence and autonomous systems, most notably in the 1990s Remote Agent project, the first AI system to control a spacecraft. CalmusNotation does not collect or use any musical material from the internet but creates new music based on the input from the user. In addition - CalmusNotation can also receive composed music from CalmusComposer and CalmusPlay - and present the music as graphical notation for live performance - in real-time. CalmusComposer composes music with Artificial Intelligence and can send the musical result to GraphicalNotations to be presented for life performance. CalmusComposer is connected to GraphicalNotation through WiFi local network - by selecting CalmusNotation in Settings. GraphicalNotation is connected to CalmusComposer, through WiFi local network - by selecting the MacOS device in the settings of GraphicalNotation. CalmusNotation needs Internet connection.
Sibelius
Professional music notation software is now available on mobile devices. Create, edit, and hear your compositions anywhere with a full suite of tools optimized for touch and stylus input. Seamlessly sync across platforms and access different feature tiers to suit your needs.
- Professional music notation
- Cross-platform synchronization
- High-quality sample library
- Apple Pencil and touch optimization
- Innovative note entry
- Command Search functionality
- Scalable subscription tiers
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Sibelius brings professional music notation to iPad and iPhone, putting the workflows used by countless composers, orchestrators, and arrangers at your fingertips. Seamlessly move between iPad, iPhone and desktop, and from studio to coffeeshop to scoring stage, and write anywhere inspiration strikes. # Work on scores anywhere Sibelius for mobile puts the #1 selling music notation program at your fingertips—literally. Work with the same tools and features used by countless composers and production houses every day on your iPad and iPhone. Whether writing down ideas, creating full-blown compositions, or reviewing scores, you have the freedom to create wherever you’re comfortable. #Take your portfolio to go Forget having to bring and break out your laptop when meeting with clients and collaborators. Instead, you can conveniently take the world’s most powerful notation toolset and your entire music portfolio with you wherever you go—ideal for those unexpected opportunities. And for tandemly working through last-minute revisions. # Hear your music in stunning detail Sibelius includes a high-quality sample library filled with a variety of musical instrumentation, so you can hear what your music will sound like when performed by real musicians. The Espressivo advanced notation interpretation even lets you adjust rhythm and swing to create a more humanistic feel. # Speed your workflow Sibelius for mobile is designed to take full advantage of Apple Pencil and iPad touch capabilities. Its elegant, streamlined interface provides the most intuitive and efficient workflows possible while supporting the same keyboard shortcuts you know and love from working on the desktop version, so you’ll feel right at home. # Get innovative note entry Experience the pen and paper workflow reimagined. Enter notes with the onscreen Keypad or a keyboard, and Sibelius takes care of all note layout. Touch a note and drag up or down to change its value, or drag left or right to add a flat or sharp. With an Apple Pencil, tap a note and tilt up or down to add a flat or sharp, or tilt left or right to choose the note value. # Have everything you need In addition to the Keypad, Sibelius for mobile features a Create menu that’s optimized for iOS, making it easy to add clefs, key signatures, time signatures, barlines, symbols, text styles, and more to your score from searchable galleries. You can also quickly search through all Sibelius commands using the Command Search, putting the entire app at your fingertips. # Move tiers to meet needs Sibelius is designed to grow with you to support your creative aspirations and project needs. From the introductory (and free) Sibelius First to the industry-standard Sibelius Ultimate, you can add more notation capabilities and instrument parts to take on more creative opportunities by simply upgrading your subscription tier. # Have everything on one creative platform Seamlessly move from desktop to tablet and back without ever having to import or export files. That’s because whether on mobile or desktop, you’re always in Sibelius. With files saved to iCloud, Dropbox, Google Drive, or other iOS-supported cloud service, you have easy anywhere access to all your ideas and scores. # Enable a hybrid workflow While Sibelius for mobile is fully featured, providing many of the same tools as its desktop counterpart, there are some notation and layout features only available in the desktop version, making it an integral part of a complete workflow (compare versions). Plus, the mobile version comes free with the desktop version, enabling you to work where and how you want.
Screenshots
Verdict
The clearest difference is review sentiment: Sibelius at 36% against CalmusNotation's 0%. Sibelius also leads on ratings volume (1.8K vs 5) and iOS requirement (13.4 vs 15.6). CalmusNotation's advantage is in-app purchases (none vs 2) and rating (4.4 vs 4.2). On price, update cadence, ads 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
Both are free to download. Sibelius sells 2 in-app purchases, starting at $5.99 per month. CalmusNotation asks for nothing beyond the download.
CalmusNotation holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: Sibelius has 1.8K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 0% of CalmusNotation's written reviews are positive against 36% of Sibelius's, so the app with the better star average is not the one people write more warmly about.
CalmusNotation ships an update every 4 months, Sibelius every 2 months. The most recent releases landed on June 5, 2026 and September 25, 2026 respectively.
| Parameter | CalmusNotation | Sibelius |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) — better | 4.2 (1.8K ratings) |
| Positive reviews | 0.0% of reviews | 35.9% of reviews — better |
| Number of ratings | 5 | 1.8K — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 294 MB | 1.4 GB |
| Age rating | 4+ | 4+ |
| Developer | Erki-tonlist sf | Avid® |
Customer experience
CalmusNotation
Sibelius
Bugs and requests
CalmusNotation
Not enough reviews yet to summarise bugs or requests.
Sibelius
Reported bugs
4 issues- Scores disappearing or not saving properly
- Subscription issues and inability to log in
- Crashes when performing basic actions
- Compatibility problems with newer iPad OS versions
Requested features
7 requests- Ability to enlarge chord symbols
- More time signature options
- Support for MIDI input
- Better Apple Pencil integration
- Autosave and improved file management
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- Export options like MusicXML and PDF
- Customizable shortcuts and toolbars
In-app purchases
CalmusNotation
No in-app purchases
Sibelius
- Sibelius Artist for iOS1 Month trial$5.991 Month
- Sibelius Ultimate for iOS1 Month trial$12.991 Month









