Free
€0
forever, no ads, no upsell pop-ups
- 88-note multi-touch keyboard, low-latency
- Hold-zone gesture (1-finger scroll, 2-finger zoom)
- 12-semitone Transpose wheel with common-instrument hints
- All 22 historical & microtonal temperaments
- Root note rail + reference frequency 415–466 Hz
- 5 built-in sounds (Piano, Organ, Flute, Strings, Harpsichord)
- 4 FluidR3 GM bonus presets (Honky-Tonk, Drawbar Organ, Violin, Trumpet)
- 21 transposing instruments (woodwinds, sax, brass, strings, concert)
- Three full-fidelity pedals (Sustain, Sostenuto, Soft)
- Mac Catalyst with keyboard shortcuts (S D F G H J K L + modifiers)
Pro
€1.99
one-time purchase · Family Sharing enabled
- Everything in Free, plus:
- All 142 FluidR3 GM melodic presets
- Bank 128 drum-kit percussion presets
- Import any .sf2 SoundFont from Documents / Files
- Custom bank / program selection
- Custom SoundFont persisted across sessions
Student
€0
unlocked by a promo code from your music teacher
- Everything in Free, plus:
- All 142 FluidR3 GM melodic presets
- Bank 128 drum-kit percussion presets
- Import any .sf2 SoundFont from Documents / Files
- Custom bank / program selection
- Custom SoundFont persisted across sessions
Complete Feature Comparison
Almost everything is in Free. Pro is just the sound palette.
| Feature | Free | Pro · €1.99 |
|---|---|---|
| Keyboard | ||
| The basics | ||
| 88 notes (A0–C8), unlimited multi-touch polyphony | ||
| Low-latency touch-to-audio (AVAudioEngine streaming) | ||
| Continuous legato glissando across keys | ||
| Gestures (the cool ones) | ||
| Hold-zone on left edge: 1-finger drag = scroll, 2-finger pinch = zoom | ||
| Pinch zoom anchored to fingers (keys stay under your hand) | ||
| First-launch coachmark explains the gesture (re-armable from Settings) | ||
| Visual feedback | ||
| Pressed-key highlight (inverted color) | ||
| Optional live frequency readout (Hz) over the keyboard | ||
| Wheels — Transpose | ||
| Wheel 1 | ||
| 12-semitone steampunk wheel | ||
| Common instruments preview per semitone (e.g. Bb → Bb Clarinet / Sax / Trumpet) | ||
| One-tap instrument selection sets full concert-pitch offset | ||
| Wheels — Temperament | ||
| 22 temperaments, in one wheel | ||
| Equal (12-TET) | ||
| Just Intonation — 5-limit, 7-limit | ||
| Meantone — ¼, ⅓, ⅕, ⅙, 2⁄7 comma (5 variants) | ||
| Well Temperament — Werckmeister III, Kirnberger III, Vallotti, Young, Neidhardt, Barnes (6) | ||
| Historical — Bach/Lehman, Rameau, Kellner (3) | ||
| Pythagorean | ||
| World & extended — 19-TET, 31-TET, 53-TET, Arabic 24-TET (4) | ||
| Tuning controls | ||
| Root note rail (12 chromatic) for non-equal temperaments | ||
| Reference frequency A 415–466 Hz (slide-rule lens UI) | ||
| Cents-accurate frequency calculation | ||
| Wheels — Sound | ||
| 5 built-in sounds | ||
| Piano (FluidR3 GM 0 / Acoustic Grand) | ||
| Organ (Church Organ) | ||
| Flute / Sine | ||
| Strings (string ensemble) | ||
| Harpsichord | ||
| SoundFont (bundled FluidR3 GM) | ||
| Free preset whitelist: Honky-Tonk Piano, Drawbar Organ, Violin, Trumpet (4 from FluidR3) | ||
| All 142 FluidR3 GM melodic presets | — | |
| Bank 128 percussion drum kits | — | |
| Custom SoundFont (.sf2) | ||
| Import any .sf2 file from Documents / Files | — | |
| Custom bank / program selection (standard SF2) | — | |
| Persisted across sessions (UserDefaults) | — | |
| Instruments — 21 transposing | ||
| Woodwinds (6) | ||
| Piccolo, Flute, Oboe, Clarinet E♭, Clarinet B♭, Bassoon | ||
| Saxophones (4) | ||
| Soprano B♭, Alto E♭, Tenor B♭, Baritone E♭ | ||
| Brass (6) | ||
| Trumpet B♭, Trumpet C, Horn in F, Trombone, Tuba, Flugelhorn B♭ | ||
| Strings (4) | ||
| Violin, Viola, Cello, Double Bass | ||
| Concert (1) | ||
| Concert pitch (no transposition) | ||
| And of course | ||
| Real-time auto-retranspose when you change instrument | ||
| Pedals — three full-fidelity | ||
| Three pedals, faithful to the real piano | ||
| Sustain (damper) — lift all dampers, notes ring until released | ||
| Sostenuto (tonal) — snapshot of currently-held notes only | ||
| Soft (una corda) — −6 dB per-note at attack only (not on already-ringing notes) | ||
| Interaction | ||
| Hold-momentary by default (press = on, release = off) | ||
| Drag right ≥50pt = lock ON / left ≥50pt = lock OFF | ||
| Double-tap (<350 ms) = toggle lock | ||
| Tri-state thermionic lamp ledger (OFF / HELD / LOCKED-pulse) | ||
| Independent visibility toggles in Settings | ||
| Mac Catalyst | ||
| Native keyboard shortcuts | ||
| White keys S D F G H J K L, black keys E R Y U I | ||
| Live octave shift with [ and ] | ||
| ⌥+drag mouse = pan, ⌘+drag mouse = zoom | ||
| Space = sustain hold, ⌥+Space double-tap = sustain lock | ||
| X / ⌥+X = sostenuto, left Shift / ⌥+left Shift = soft | ||
| Mac Shortcuts Tips modal at first launch | ||
| Window behavior | ||
| Window size persisted across cold starts | ||
| Settings | ||
| Personalization | ||
| Master volume, keyboard zoom level, physical-keyboard octave (Mac) | ||
| Notation system: Italian Do-Re-Mi-Fa or English C-D-E-F | ||
| Live Hz frequency overlay toggle | ||
| Re-enable iPad / Mac coachmarks anytime | ||
Frequently Asked Questions
What's actually free?
The musical core: keyboard, 22 temperaments, 21 transposing instruments, 5 built-in sounds, 3 pedals, hold-zone gesture, Mac Catalyst, keyboard shortcuts. You can play seriously for free.
What does Pro add?
Sound palette. The full FluidR3 GM library (142 melodic presets + drum kits), and the ability to import your own .sf2 SoundFonts. It's about what the keyboard sounds like — the rest of the app is already complete in Free.
Why €1.99 — that's very cheap?
Because we want musicians to actually buy it without thinking twice. The development cost is amortized differently: we have Music Workshop and Audio Editor sharing the same suite. Pro on Keyboard is more "thank you" than monetization.
Ask your teacher for a promo code?
Music teachers can request Apple promo codes that unlock Pro for free. If your teacher uses Vivaldi Keyboard, ask — they may have one for you. Redeem in the App Store.
Family Sharing?
Yes — Pro is shareable with up to five family members on the same Apple Family. One purchase covers them all.
Can I really import any SoundFont?
Any standard .sf2 file. You pick the bank and program inside the file, the app remembers your choice. Drum kits (bank 128) work too.
Does Pro work on Mac too?
Yes. One purchase, unlocked on iPad and Mac. The Mac version inherits all the keyboard shortcuts and gestures.