Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
zMors Modular - Full featured modular synthesizer for iOS
cassini - Polyphonic Synthesizer for iPhone/iPod touch
Ripple Maker - A coffee machine that turns selfies & photos into latte art
VHS Synth - The leading free & open-source iOS/macOS music & audio dev tools. https://t.co/Ik1FiorZWH proudly powers millions of iOS app installs
Surge XT - Open-source subtractive-hybrid synthesizer formerly sold commercially as Vember Audio Surge.