I have ATT service, and about a month or so ago, I added an M-Cell in my home to increase the coverage in my basement, etc. It works fine, but the main issue I have is that if I leave my "cellular data" on, then if I use my phone while using the M-Cell (which auto-connects when I enter my home) it counts against my data plan. I have maintained the Unlimited Data Plan for this phone for years, and this past month is the first time I've been "throttled" with 10 days left in my billing cycle...due to the data counting against my plan while used at home. Does anyone know of an app that will automatically turn my "Use Cellular Data" on/off based on my location? I appreciate any advice!