KeySynth is a sleek, responsive mobile piano app built in Sketchware Pro! Play full chords, scroll across octaves effortlessly, and experience zero-lag sound.
✨ Top Features
🎹 Full Piano Keyboard: Clean, realistic white & black keys with instant touch highlight feedback.
⚡ Zero-Lag Multi-Touch: Play multiple keys and chords at the same time using Android's native SoundPool.
🎼 Real-Time Octave Switcher: Tap + / - to easily slide between low bass and high treble octaves (OCT 2 to OCT 7).
🪶 Ultra Lightweight: Uses clever pitch-shifting math so the app stays tiny while delivering full piano sounds.
©2026 Sketchub | User Policy