body: Simply put, I'm developing a 'social' app centered around similar interests in brands (specifically restaurants). The main function of the app has users add restaurants to a 'shareable favorites list' of sorts. I intend on generating profit through ads or possibly otherwise in the future
  
  
  If I intend on generating profit from ad revenue, am I allowed to reference said brands/franchises? Does the answer change if I use a trademarked logo? If not, does it change if all entries of restuarants and logos are added to the database by users and not the app owner(s)?
  
  
  *Ex. If my app's feature allows users to access entries for McDonald's, Burger King, and Wendy's (which have respective locations and trademarked logos attached to them), will I get sued for making a profit off of that feature the app?*
  
  
  
title: Is it illegal to reference other brands in an app for profit?