Audulus would like to remind you that in the midst of all the Modular fanfare, Audulus is the only modular iOS environment with polyphony.
To further drive home the point, this update greatly expands on the polyphonic possibilities.
What's new in Audulus 2.3:
Audulus 2.3 changes how sub-patches work with respect to polyphony. Now, sub-patches operate like visual groupings of nodes. This means that instead of the entire sub-patch being replicated per-voice, polyphonic connections are carried through. As a consequence, you can now have a sub-patch with monophonic input and polyphonic output (or vice versa).
Sub-patches are a way of grouping up elements in manageable chunks, kind of like building your own modules. In this update you can now carry polyphony through these sub-patches... without having to use up all of your UI space on splitters!
Here's a new preview of the polyphonic routing available to sub-patches.