I was just on the phone with a rep from Sprint asking her if they have a DD app. She answered yes but when I asked her if it's from 'Cogosense' she responded the manufacturer is Harman and tried to convince me of how good it is. She said they just started offering this to potential customers for free with the purchase of a phone plan. Not sure what to make of that but here's something else that I googled:

https://shop.sprint.com/mysprint/services_sol...pecialCat=


Pressed on 'Learn More' but got 'we've hit a speed bump'

https://www.sprint.com/landings/focusondrivin...nity:drive