It's like those ads for coke or mcdonalds. They aren't giving anybody any new information. Instead it's to continuously put the logos, branding and name into the mind of the viewer/user. That way people should feel that brand is more familiar to them rather than all the other "unknown" brands and will be more likely to by said brand. Same thing with the app. They get their logo/brand in your eyes every time you need to use it. Takeaway: They don't even need to sell the data