Flat vs Submix
Flat
flat.ioSubmix
submix.ioSide by side
| Figure | Flat | Submix |
|---|---|---|
| Price from | $4.17/mo | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| Plans published | 6 | 1 |
| Spec score · Music Collaboration Software | 9.3 (#3) | 7.5 (#23) |
Plans
Flat
- Flat BasicFree
- Flat Power$9.99 a month
- Flat Power LifetimePrice not published
- Flat Desktop FreeFree
- Flat Power Monthly$9.99 a month
- Flat Power Yearly$49.99 a year
In their own words
Flat
Flat is music-notation software for writing, editing, playing back, and collaborating on scores. It runs on the web, iOS, Android, Mac, and Windows, and supports MusicXML and MIDI import and export. Users can compose, edit, and play scores offline; cloud sync requires Flat Power. Multiple users can write, edit, and comment on the same score from different devices in real time. The free plan includes essential notation tools, playback, and collaboration, but is limited to 15 scores. Flat Basic lists 30 instruments; Power includes more than 180, including HQ studio instruments, alongside unlimited scores and advanced playback. Flat Power costs $9.99 per month or $49.99 per year. The desktop app is free to download and use, with a 15-score cap on its free plan. PDF import requires Flat Power or paid credits, while desktop exports include PDF, MP3, and WAV. Flat for Education integrates with Google for Education, Microsoft Office 365, and Canvas and has a free one-month trial. Personal accounts have a minimum age of 13 in most countries.