As I explain in the description of the App Store, I've created this app because when I travel I love trying the best hamburgers of the place (FYI, the best european burger I've tried is in London, Honest Burgers).

About the maximum limit, I set up 10km because personally I don't expect going more than that if I'm really hungry, but it's something I want to add to the next version (a small settings panel that allows to set this value).

Thanks again, it's my first iOS app and I'm really excited!