Composer Pro vs GPMuse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
GPMuse
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GPMuse is an intuitive music writing and notation tool for iOS. It provides a minimalist and smooth workspace, helping you quickly capture your musical ideas. KEY FEATURES: • Visual Notation: Add, delete, and edit notes directly on the staff. Flexibly switch between clefs (Treble, Bass, Alto...). • Diverse Rhythms: Customize the tempo of your score. Fully supports rhythms from basic to complex, including triplets. • Harmony & Key Signatures: Quickly set key signatures and insert accurate chord symbols above the staff. • Playback: Instantly play back your written score with high-quality audio to review your melodies. OPTIMIZED EXPERIENCE: • User-friendly interface, specially optimized for touch gestures on iPhone and iPad. • Full Dark Mode support to protect your eyes and improve focus. Terms of use: https://support.gpmuse.com/terms_of_use.html Privacy policy: https://support.gpmuse.com/privacy_policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: GPMuse at none against Composer Pro's 4. GPMuse also leads on update cadence (every 2 weeks vs every 2 months). Composer Pro's advantage is iOS requirement (15.0 vs 18.6). On price, 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. Composer Pro sells 4 in-app purchases, starting at $6.99 per 7 days. GPMuse asks for nothing beyond the download.
Composer Pro ships an update every 2 months, GPMuse every 2 weeks. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.
| Parameter | Composer Pro | GPMuse |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (685 ratings) — better | — |
| Positive reviews | 71.5% of reviews | — |
| Number of ratings | 685 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 161 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | 嵩 张 | Hung Truong Khanh |
Bugs and 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
GPMuse
Not enough reviews yet to summarise bugs or requests.
In-app purchases
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
GPMuse
No in-app purchases









