Audulus and Samplr are two sound production apps with which I’ve increasingly spent time lately. Audulus presents an interactive, modular—or patcher—sound synthesis environment that recalls classic analogue sound synthesis techniques and methods. I absolutely love the interface as it lends itself to both composition and performance. The latter app is unlike anything else I’ve seen presented on mobile; it recalls only a few sampler patches that I’ve seen utilized with Max and Ableton Live environments. Like Audulus, Samplr features an intuitive, user-friendly and deeply engaging interface. As such, it also lends itself to both composition and performance.