Healthy Cities is a free Android application developed by Sport Heroes that has been promoting a sustainability project sinceThe app aims to encourage people to lead a healthy lifestyle and contribute to the creation of healthy and sustainable environments in cities. By joining the Healthy Cities challenge, you can participate in a global movement to walk 6,000 steps a day.

The Bupa Group (Sanitas, Bupa Chile, Bupa Mexico, and Luxmed) will invest in urban regeneration and reforestation projects in Spain, Poland, Chile, and Mexico if the challenge is successful. Participants will receive proposals to take care of themselves and the planet as the app believes in the connection between people's health and the health of the environment.