I am ecstatic that I now have the ability to change my hot tub settings anywhere that I have cell service. This app is long overdue. Unfortunately 3 stars b/c it has lost some of the flexibility of the original wifi-only in.touch app. One of my peeves of in.touch world is that you can no longer toggle economy mode manually. You also need to have a consistently strong wifi signal between your home router and the tub for this to work correctly. I chose to purchase a wifi range extender to help. The app support from in.touch is fast and very helpful.
H0tshoe about in.touch™ world edition