It connects to the device just fine and offers a measurement on various hydration levels, but then...that’s it. It says if you hit “start” through the app it will start the spray to hydrate based on your measurements, but there is no start button in the app. And it offers no instructions beyond that, it doesn’t let you know how often you should use the spray each day, it doesn’t offer any insight into the hydration levels, or do anything custom or smart with your measurements, just tells you what they are and it’s done. Was expecting a bit more personalization with the device/app.