While you're waiting for an update to this app you can also use Event Engine to provide audio, push, and visual feedback for your moisture sensors or for any other sensors that you'd like to try.
I think assuming Robert updates his app it's cleaner and simpler to do the kind of notifications you want for your water sensors in his app. That's what I would do when it's capable of that.
But Event Engine is worth looking into generally as it's a nice point and click automation app that is very powerful.
