My mistake – I was thinking it was a keyboard controller. Feel free to add pitch-wheel modulation to a future version.
And my other question would be, how did he do the vibrato?
LOL, the ‘Solo Analog Synth’ patch in the demo was all it took to sell me on the app – imagine my surprise to not find it in the presets! It’s OK, the settings are clear in the video, I think I have it right.