haptik - The first always-on metronome for Apple Watch
Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
Soundbrenner Pulse - A vibrating, wearable metronome for musicians
cassini - Polyphonic Synthesizer for iPhone/iPod touch
zMors Modular - Full featured modular synthesizer for iOS
Mutronome for iOS - Practice drums with Apple Music