Will the app allow me to run two of these controller systems? I have 15 values, so will need two units. Thanks.

AAH, yes you can control up to five separate devices on the same B-hyve account. They would not "talk" to each other, though, so you would need to manually (no smart watering) program each of them so that watering times do not overlap at all.

I would certainly think so. You are going to have to pair the app and the controller, so the app should use different IDs for each one. Understand that this is a guess. Me, I will get the manufacturer of this product to call.