iWriteMusic vs Composer Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iWriteMusic
Create professional-quality sheet music efficiently on your smartphone. This app offers an intuitive interface and a powerful input system designed for small screens, making music notation accessible for musicians of all levels. Share your compositions as PDFs, JPGs, or MIDI files.
- Intuitive and simple user interface
- Efficient One-Flick Entry System
- Professional quality sheet music creation
- Supports major notation elements
- Useful playback options
- Export to PDF, JPG, and MIDI
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Music Writing is easy and fun when you use iWriteMusic! Ever wished you could quickly create sheet music in your small free time? Ever thought smartphones were too small to create sheet music? iWriteMusic enables efficient sheet music creation even on small smartphone screens. Unlike other cramped and cumbersome apps, it is designed meticulously for small screens,comprehensive suite of essential tools for concerts, lessons, and music classes! Best fit for professional musicians, music teachers and students. For songwriters, composers and arrangers. For both singers and instrumentalists (piano, violin, cello, guitar, flute, saxophone, trumpet, drums, etc.). Great for writing down ideas, creating lesson materials, creating lead sheets, or creating scores and parts for chorus groups, choirs, chamber orchestras, jazz bands, Latin bands, orchestras, and more. For daily practice, rehearsals, concerts, iWriteMusic will help you enrich your musical life! Check out 7 reasons to choose iWriteMusic. 1. You can understand this app almost instantly! Because of Truly Intuitive and Extremely Simple user interface, you barely need to read pages of manuals nor watching numbers of instruction videos. Unlike Finale, Sibelius and other similar apps, you just have a few things to learn to be able to use this app pretty well. 2.Double your productivity with our Highly Efficient Input System. If you’re already familiar with notation apps and looking for faster & more efficient entry system, try our innovative One-Flick Entry System along with Traditional Entry System to get your job done in no time! What is Traditional Entry System? - The choices will appear with ToolBox. - Select a value and the location separately. - Recommended to those who are not yet familiar with any music notation apps. What is OneFlick Entry System? - The choices will appear when you touch the screen. - Select a location and the value at once. - The selection will change as you slide your finger to left/right. - Recommended to those who are familiar with music notation apps and looking for faster and more efficient entry system. 3. Creates beautiful sheet music - absolutely professional quality! - rich options for page layout adjustment - easy parts creation - easy score/parts management - direct print-out via AirPrint 4. Supports most of major notation elements - multi-track writing - multi-voice writing - percussion/drums notation - chord symbols and lyrics - multi-bar rest - time change - key change - clef change - tempo change - grace note - articulations and dynamics marks - easy song transpose - partial transpose and many more! 5. Useful playback options for practice - mixer with solo, mute and voice select - loop and swing options 6. Data & sheet music sharing - exports/Imports iWriteMusic data file - exports PDF or JPG - exports Standard MIDI file which can be imported by other apps such as GarageBand 7. Extremely Compact Size (15 MB) You can save your device storage space for photos and other apps. ATTENTION: Latency during playback and drawing may occur by device capacity or number of tracks and background applications.
Composer Pro
Compose music scores with ease using a familiar keyboard layout. This app supports multiple parts, a wide range of instruments, and various musical symbols, making it suitable for both beginners and experienced musicians.
- Keyboard-style note input
- Support for up to 8 parts
- Over 100 instruments
- Variety of music symbols
- Configurable parts and settings
- Instrument transposition
- Export without watermark
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A handy sheet music writer app, make writing sheet music feels like typing notes. Tap on the keys with notation in a familiar keyboard layout. Provide a very easy way to compose music score. Support up to 8 parts, over 100 instruments, variety of music symbols and notations. It is very friendly for rookies while professional enough for experts. --------------------------------- UNLIMITED ACCESS SUBSCRIPTION - Support up to 8 parts - Config parts(add, delete, reorder) - Change key for each part - Change beat type and tempo - Config clef for each staff - Config sound for each part - No watermark image export - No Ads - Support 2nd voice part - Transpose instruments - Change keyboard size - Import data file - Unlock all 100+ instruments - The subscriptions are $9.99 monthly and $49.99 yearly with free trial - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that service, where applicable - Terms of use: https://service.notationpad.com/terms_service.html
Screenshots
Verdict
The clearest difference is price: Composer Pro at Free against iWriteMusic's $9.99. Composer Pro also leads on device support (3 vs 1) and ratings volume (685 vs 181). On rating, review sentiment, update cadence and ads 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
Composer Pro is free to download; iWriteMusic costs $9.99 up front. iWriteMusic sells 1 one-off in-app purchase and Composer Pro sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for iWriteMusic against 4.5 for Composer Pro. Both are backed by a comparable volume of ratings — 181 and 685 respectively. Written reviews are what separate them: 73% of iWriteMusic's written reviews are positive against 72% of Composer Pro's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.
| Parameter | iWriteMusic | Composer Pro |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.5 (181 ratings) | 4.5 (685 ratings) |
| Positive reviews | 73.2% of reviews — better | 71.5% of reviews |
| Number of ratings | 181 | 685 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 161 MB |
| Age rating | 4+ | 4+ |
| Developer | iWriteMusicProject | 嵩 张 |
Customer experience
iWriteMusic
Composer Pro
Bugs and requests
iWriteMusic
Not enough reviews yet to summarise bugs or requests.
Composer Pro
Reported bugs
3 issues- Notes sometimes placed incorrectly
- Measures and compositions randomly deleted
- Inability to restore deleted content
Requested features
5 requests- Add more instruments beyond piano
- Allow changing time signatures and key signatures without subscription
- Improve note editing and placement
- Add export options to save/share compositions
- Provide more music notation tools and dynamics
In-app purchases
iWriteMusic
- Advanced File Management$0.99
Composer Pro
- Unlimited Access$6.997 Days
- Pro Access$9.991 Month
- Pro Access$49.991 Year
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- Pro Access7 Days trial$49.991 Year








