Downloading any retail or food company's app is a bad idea. It will violate your privacy, and give you little to no benefits.
I really hate when companies demand that you sign in to their website to communicate with them, when they could have just used email. Especially if they refer to their proprietary website as "email" when it clearly isn't, and especially when it's an app instead of a website.
Yeah, I feel like the only person in my life who doesn't have Chipotle, ChickFilA, McDonalds, Starbucks and a bunch of other apps on my phone. Worse yet, I walk in and order at the counter like I'm living in the distant past. :-)