ScoreInk for individuals. Flat.io for teams and classrooms.
If you write music solo and want the fastest path from idea to printed score — ScoreInk wins on price, simplicity, and no-limits free tier. If you're teaching, collaborating in real-time with others, or need iOS/Android apps — Flat.io is the better fit. Neither tool is objectively "better." It depends entirely on your workflow.
Feature Comparison
Here's every feature that actually matters for day-to-day music notation, compared side-by-side.
| Feature | ScoreInk | Flat.io |
|---|---|---|
| Runs in browser | ✓ Yes | ✓ Yes |
| Free tier score limit | Unlimited scores | 15 scores |
| Free tier privacy | Private by default | Public or limited |
| Export to PDF | ✓ Yes | ✓ Yes (paid) |
| Export to MusicXML | ✓ Yes | ✓ Yes |
| Export to MIDI | ✓ Yes | ✓ Yes (paid) |
| Lyrics support | ✓ Yes | ✓ Yes |
| Playback | ✓ Yes | ✓ Yes |
| Zoom / print scaling | ✓ Yes | ✓ Yes |
| Multi-instrument scores | ✓ Yes | ✓ Yes |
| Real-time collaboration | ✗ Not available | ✓ Yes (paid) |
| Mobile app (iOS/Android) | ✗ Browser only | ✓ Yes |
| Offline support | Partial (PWA) | ✗ Requires internet |
| Requires account to try | Email only, instant | Full registration |
| Paid plan (annual) | $20/year | ~$60/year |
| One-time lifetime plan | $35 lifetime | ✗ Subscription only |
| Education features | ✗ Not available | ✓ Noteflight Learn |
Where ScoreInk Wins
Genuinely unlimited free tier
No score cap, no forced upgrades. Use it as long as you want without hitting a limit. Flat.io's free plan stops at 15 scores — fine for a trial, frustrating as a long-term tool.
Price
$20/year or $35 once, forever. Flat.io's individual plans run ~$5–8/month ($60–96/year). If you write music regularly but aren't a power user, that difference adds up.
Simpler interface
ScoreInk is designed for the person who wants to notate music, not learn a new app. The UI gets out of the way. Flat.io is polished but has more surface area to navigate.
Instant start
Enter your email and you're composing. No lengthy onboarding, no feature tour you didn't ask for, no upsell screens on launch.
Where Flat.io Wins
Real-time collaboration
Multiple people editing the same score simultaneously is a unique feature. Nothing else in this space does it as well. If you're co-writing or teaching remotely, it's a genuine differentiator.
Mobile apps
iOS and Android apps let you compose on your phone or tablet. ScoreInk is browser-only — usable on mobile through the browser, but not purpose-built for it.
Established track record
Flat.io has been running since 2012 with a large user base. More tutorials, a bigger community, and integration into many school curricula.
Education platform
Flat for Education has assignment workflows, teacher dashboards, and school-wide licensing. If you're in an institutional setting, ScoreInk doesn't compete here.
Pricing Breakdown
The lifetime math: if you'll use sheet music software for more than 18 months, ScoreInk's $35 one-time fee beats any subscription. Flat.io has no lifetime option — you're paying forever.
Who Should Use Each Tool
Pick ScoreInk if you…
- Write music solo and don't need collaboration
- Want the cheapest path to full-featured notation
- Prefer a simpler, focused interface
- Need PDF and MusicXML export on a free plan
- Want a one-time purchase that doesn't expire
- Work mostly from a desktop browser
- Are comparing costs and Flat.io feels expensive
Pick Flat.io if you…
- Collaborate with others on the same score
- Need iOS or Android apps for mobile composing
- Are a teacher running a classroom
- Are already in a school system that uses Flat
- Want the most polished UI in the browser
- Need assignment and student tracking features
- Are comfortable with subscription pricing
Bottom Line
Flat.io is the better-funded, better-known product with a longer feature list. It earned that reputation. Real-time collaboration and mobile apps are real advantages — if you need them.
ScoreInk is for the musician who wants to write music, not manage a subscription. The free tier is genuinely useful (unlimited scores, private by default), the paid plans are cheap, and the interface prioritizes getting notes on paper over showing off features.
If you're deciding right now: try ScoreInk free (no card required) and see if it covers your workflow. If you find yourself needing collaboration or mobile, Flat.io is there. Most solo composers won't.