iWriteMusic SE vs Hamoru
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iWriteMusic SE
Create professional-quality sheet music efficiently, even on small screens. This app offers intuitive interfaces and powerful tools for musicians of all levels, from beginners to professionals. Easily compose, edit, and share your musical ideas.
- Intuitive and simple user interface
- Highly efficient input systems (One-Flick & Traditional)
- Professional quality sheet music creation
- Supports major notation elements
- Useful playback options for practice
- Data and sheet music sharing (PDF, JPG, 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 8 reasons to choose iWriteMusic SE (Special Edition) 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. 8. Best of all, it's Free! Yes, it's Free and Over 1.4 Million people all over the world has created music with this app family. Let's get started now! Note: This is for iPhone (iPad version sold separately) ATTENTION: Latency during playback and drawing may occur by device capacity or number of tracks and background applications. Limitations on SE (Special Edition): 1. Water mark appears on page views and printouts. 2. Can’t save more than 5 songs. 3. Can't play more than 30 seconds at a time. 4. Can't import iWriteMusic data file. (export only) 5. Can't export Standard MIDI file.
Hamoru
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Hamoru is a practice app for people learning harmony parts. It splits a song into lead vocal, harmony, and backing so you can listen to each part. What it does • Import an audio file or a video, and it is split into three parts, lead vocal, harmony, and backing, right on your iPhone. • Set the volume of each part. Listen to the harmony alone, or blend in a little of the lead. • Mark a section and loop it. Name and save sections, then tap one to switch to it. • Change the key in half steps, up to six half steps up or down. Pricing You can separate up to three of your own songs for free. After that, a one-time in-app purchase removes the limit. There is no subscription. Your songs stay on your device Separation runs on the iPhone itself, and your songs are never uploaded. The AI models are built into the app, so separation and playback work without an internet connection. Before you start • Songs up to 10 minutes long can be imported. • Separation takes several minutes or more, depending on the device, the length of the song, and how warm the phone gets. It also needs some free storage to prepare. • Results vary from song to song. Some lead vocal or instruments may remain, or the harmony may come out faint. Please try your own songs with the three free separations first. • If a song has more than one harmony voice, they can't be split into separate parts. • Songs can't be imported from streaming services' links or playback screens. Use audio files or videos you have the right to use. • Supported devices: iPhone 15 Pro, iPhone 15 Pro Max, and the iPhone 16 series or later (iOS 26 or later). Earlier iPhones and iPad are not supported. Demo song: 魔王魂「シャイニングスター」 (Shining Star) Lyrics, music and arrangement: 森田交一 / Vocals: 詩歩 https://maou.audio/14_shining_star/
Screenshots
Verdict
The clearest difference is in-app purchases: iWriteMusic SE at none against Hamoru's 1. iWriteMusic SE also leads on iOS requirement (16.0 vs 26.0). 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. Hamoru sells 1 one-off in-app purchase. iWriteMusic SE asks for nothing beyond the download.
iWriteMusic SE ships an update every 4 weeks, Hamoru every 2 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.
| Parameter | iWriteMusic SE | Hamoru |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (148 ratings) — better | — |
| Positive reviews | 56.8% of reviews | — |
| Number of ratings | 148 — better | — |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 19 MB | 769 MB |
| Age rating | 4+ | 4+ |
| Developer | iWriteMusicProject | kaito kawasaki |
Bugs and requests
iWriteMusic SE
Reported bugs
20 issues- App crashes when adding rests at beginning of measure
- App crashes when adding/removing notation
- App freezes when entering notes on certain pitches
- App randomly quits during composition
- Note placement inaccuracy on iPhone with retina display
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- Notes appear in wrong location despite correct placement
- Playback cuts off after 30 seconds
- Playback audio not working despite phone not being muted
- Incorrect note playback (different octave than entered)
- Lyric input not functioning
- Crashes after large file operations
- Data loss when closing without saving
- Crashes when using multiple staves
- Crashes during save operation
- Crashes when reinstalling after purchase
- Watermark reappears after reinstall
- App becomes laggy over time
- Staccatos, crescendos, and accents not played back
- Ritards and accelerandos ignored in playback
- Trill notation not functioning properly
Requested features
20 requests- Auto-save functionality
- MusicXML file transfer support
- Guitar tablature (TAB) notation
- Ability to change time signature mid-composition
- Better grace note controls
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- Slur and tie playback support
- Crescendo and diminuendo playback
- More instrument templates (duets, trios)
- Audio sharing/export capability
- Arpeggio playback support
- Individual grace note value assignment
- Pianissimo (ppp) dynamic marking
- Bracket notation for grouped instruments
- More percussion instruments (Baritone, Euphonium, Mellophone)
- Text formatting (bold, italic)
- Customizable bottom navigation bar
- iPad-native version
- MIDI export to Logic Pro and Sibelius
- Searchable help guide with index
- Ability to extend bar lines across measures
Hamoru
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iWriteMusic SE
No in-app purchases
Hamoru
- Unlimited separations$5.99









