Loopy Pro: Create music, your way.
What is Loopy Pro? — Loopy Pro is a powerful, flexible, and intuitive live looper, sampler, clip launcher and DAW for iPhone and iPad. At its core, it allows you to record and layer sounds in real-time to create complex musical arrangements. But it doesn’t stop there—Loopy Pro offers advanced tools to customize your workflow, build dynamic performance setups, and create a seamless connection between instruments, effects, and external gear.
Use it for live looping, sequencing, arranging, mixing, and much more. Whether you're a live performer, a producer, or just experimenting with sound, Loopy Pro helps you take control of your creative process.
Download on the App StoreLoopy Pro is your all-in-one musical toolkit. Try it for free today.

Comments
Add mlfo to the Loopy Pro mixer by choosing Add Midi from the popup you get by tapping the + for adding mixer channels.
If you want to send midi to mfx motto, tap on the + in the destination slot of mlfo’s channel.
If you are wanting to control an “mfx motto” AUv3 parameter, you set up a MIDI Binding for the parameter.
This wiki page has information about setting up bindings to AU parameters:
https://wiki.loopypro.com/MIDI_Map_AUv3_Parameters
You can also use the MIDI Learn system to manually set up a binding:
I would probably use that method myself.
ok, thanks @espiegel123