Every feature, every platform. Honest scorecard — no marketing fluff.
| Feature | PWA | Windows | Android | Mac | iOS | Linux |
|---|---|---|---|---|---|---|
| Sheet music + library | ||||||
| PDF viewer (PDF.js) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Image sheets (JPG/PNG/WebP) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Pinch-zoom + fit modes | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Annotation overlay (pencil/highlight/eraser) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Chord display mode (large text) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Auto-scroll | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Live broadcast | ||||||
| Live broadcast (with account) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Quick broadcast (NO login) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| QR code share | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| WhatsApp/SMS/Email share | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Follower swipe + back-to-leader | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Follower suggest sheet to leader | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Setlists | ||||||
| Multiple setlists + drag-reorder | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Per-song meta (key, BPM, capo, vocalist, notes) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Set timer | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Cmd-K / Ctrl-K search | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Hardware | ||||||
| Bluetooth foot pedal (PageUp/Down) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| USB MIDI keyboard input (Web MIDI) | ✓ | ✓ | ✓ | ✓ | partial | ✓ |
| Microphone input (tuner/recorder) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Haptic feedback | most | N/A | ✓ | N/A | ✓ | N/A |
| Built-in tools | ||||||
| Tuner (cents precision) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Recorder w/ latency comp + sessions | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Backing-track DAW | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Keyboard + 8 synth sounds | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Metronome (tap-tempo, 8 time sigs) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Notepad (handwriting) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Chord transposer (PDF→PDF) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Auth + accounts | ||||||
| Username + password sign-in | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Google OAuth sign-in | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Apple sign-in | soon | soon | soon | soon | soon | soon |
| No-login Quick Broadcast | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Payments | ||||||
| Tier subscriptions (Stripe) | ✓ | ✓ | ✓ | ✓ | PWA only* | ✓ |
| One-time donations | ✓ | ✓ | ✓ | ✓ | PWA only* | ✓ |
| Broadcast sponsorships | ✓ | ✓ | ✓ | ✓ | PWA only* | ✓ |
| Distribution | ||||||
| App Store / Play Store | PWA-installable | $19 Microsoft Store | $25 Google Play | $99/yr Apple Dev | $99/yr Apple Dev | snap/flatpak |
| Available now | live | installer+portable | APK | unsigned ZIP | PWA | PWA |
*iOS in-app payments: Apple App Store distribution requires their In-App Purchase system for digital subscriptions. For now, iOS users can use the PWA via Safari (Add to Home Screen) and pay via Stripe normally — full feature parity, no Apple cut.
About native apps: All native apps (Windows / Mac / Android / iOS) wrap the live PWA from ratzonorchestra.com/sheets/. This means every PWA update is instantly available on every device. Native wrappers add: install-on-Start-Menu, app icon, native back button, push notifications (Android only currently), faster cold-start, and offline tolerance.
Web MIDI on iOS: Safari doesn't yet expose Web MIDI. USB keyboards connected to iPad/iPhone via Lightning-to-USB adapter aren't accessible. Chrome on iOS uses Safari's engine so this affects Chrome too. Workaround: connect via Bluetooth MIDI if your keyboard supports it.
Linux: the PWA works in Firefox/Chrome/Brave/Vivaldi via "Install" menu. Native AppImage build is in the pipeline.