Comment by Chirael

This, incidentally, is why I strongly resist installing apps onto my phone. Because once you let an app run on your phone, you really don't know what it's doing. At least with a browser, it's somewhat sandboxed/limited. I don't have nearly as much confidence that I've correctly twiddled whatever settings I needed to, to limit data sharing for an app, and even if I did, I don't have any confidence the company didn't find some way to get around those settings.