Below are all of the Mexico City area site guides on the site. Many of them will work as site-guides that can be saved in the app. Many cover areas too large to be walked, but should give you a good idea of where things can be found whether you’re using the Metro or any other method of getting around Mexico City.
West from the Zócalo:
East from the Zócalo:
South from the Zócalo:
North from the Zócalo:
Álvaro Obregón
Services 
Visitors Guide
Intro to Mexico City Food
Weather
Emergencies