The digital version of the analog modular synth is a one-to-one recreation of the iconic Model 15 from 1973, with a scalable interface that features gestural support for oscillators, low/high-pass filters, a looping recorder, full MIDI integration, ping-pong delay module, and numerous patch cables among the various knobs and switches.
The Model 15 ships with over 160 unique presets, a 1150 ribbon controller, 8-step sequencing arpeggiator, as well as the award-winning Animoog keyboard with 22 built-in scales and polyphonic modulation capabilities.
The Model 15 app supports Inter-App Audio and external MIDI controllers, and comes with Apple Pencil support for iPad Pro owners. The app was built using Apple's Metal low-level graphics optimization API to ensure smooth scrolling and a responsive touch interface throughout. As such, it only works on 64-bit devices running iOS 9.3, including the iPhone 5s and iPad Air or later.
Model 15 is available for $29.99 on the App Store for iPad and iPhone. [Direct Link]